Oracle Development
We are a top Oracle Database application development organization that offers excellent E-business suite, cloud-based solutions, and highly customized solutions for enhanced business intelligence.
Oracle Delivery Snapshot
LTS, current release, and AI Vector Search
99.99% uptime SLA — zero-downtime failover
AWR, ASH, SQL Plan Baselines, Index Advisor
On-premise Oracle → Oracle Cloud Infrastructure
"Ahex tuned our Oracle 19c EBS database from 14-second average query response to under 900ms across our top 50 heaviest reports. They identified 23 missing indexes, rewrote 8 PL/SQL packages with cursor-level optimisations, and implemented SQL Plan Baselines to lock the execution plans. The ERP is now fast enough that our finance team actually uses it."
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More Than 150+ Brands
Comprehensive Oracle Database Development Services
Ahex Technologies is your go-to partner for enterprise Oracle Database engineering. With deep expertise in PL/SQL development, Oracle RAC and Active Data Guard high-availability architecture, Oracle APEX application development, E-Business Suite customisation, Oracle Database performance tuning, and Oracle Cloud Infrastructure migration, we deliver database solutions that run your most critical workloads without compromise.
Our Oracle services span the full database lifecycle — from schema design and PL/SQL package development through Oracle RAC cluster administration, Data Guard failover configuration, APEX low-code portals, EBS integrations, and production performance tuning with AWR, ASH, and SQL Plan Baselines. Whether you need a greenfield Oracle database architecture, a legacy Oracle migration to OCI, a PL/SQL codebase audit, or a certified DBA team to manage your Oracle estate on retainer, our engineers deliver database solutions that handle enterprise-scale transactional loads and stay available when it matters most.
Engineering
Procedures · Triggers
Oracle Fusion
-Downtime Failover
Oracle Cloud
Portals · Dashboards
SQL Tuning · Indexes
High Availability, Enterprise Security, and Unmatched Performance: The Foundation Behind Every Mission-Critical Oracle Database
Oracle RAC Delivers 99.99% Database Uptime
Oracle Real Application Clusters runs multiple database instances on separate servers simultaneously — a node failure is transparent to applications. Combined with Active Data Guard automatic failover, Oracle RAC delivers four-nines uptime for OLTP workloads that cannot tolerate planned or unplanned downtime.
PL/SQL Is the Most Powerful Database Procedural Language
Oracle PL/SQL executes complex multi-step business logic directly inside the database engine — bulk collect and FORALL processing millions of rows without row-by-row context switching, autonomous transactions for audit logging, pipelined table functions for streaming large result sets, and native compilation (NATIVE) for CPU-intensive procedures.
Oracle Partitioning Eliminates Full-Table Scans at Petabyte Scale
Range, list, hash, interval, and composite partitioning prune irrelevant partitions before query execution — a 10TB order history table returns the last 30 days in milliseconds, not a compile error, not a production bug at 2am.
Oracle Advanced Security Meets Every Enterprise Compliance Requirement
Oracle Transparent Data Encryption protects data at rest without application changes. Oracle Database Vault restricts privileged user access to sensitive schemas. Oracle Audit Vault and Database Firewall provide tamper-proof audit logs for SOC 2, HIPAA, PCI DSS, and GDPR compliance — built into the database engine, not bolted on.
Oracle 23ai Native AI Vector Search
Oracle Database 23ai adds native AI Vector Search — store and query vector embeddings alongside relational data in the same Oracle Database, enabling RAG-based AI applications without a separate vector database. Combining OLTP performance with modern AI workloads in a single enterprise database enter your typed code.
Chosen by JPMorgan Chase, Oracle Corporation itself, the NHS, the US Department of Defense, and 420,000+ organisations globally — and the only database certified for Oracle E-Business Suite, Oracle Fusion Middleware, and Oracle Fusion Applications.
Our Oracle Database Development Services
From PL/SQL development and Oracle schema design to RAC/Data Guard HA architecture, Oracle APEX applications, EBS integrations, performance tuning, OCI migrations, and DBA-on-demand retainers.
Oracle Database Development
Greenfield Oracle database architecture — logical and physical schema design, tablespace planning, partitioning strategy, index design, security model, backup/recovery plan, and deployment on-premise or Oracle Cloud Infrastructure.
Oracle 19c / 21c / 23ai — schema design and capacity planning
Tablespace, datafile, and storage architecture
Partitioning strategy — range, list, hash, interval, composite
RMAN backup strategy and PITR recovery testing
Oracle 23ai Vector Search for AI/ML use cases
PL/SQL Development
Enterprise PL/SQL engineering — stored procedures, functions, packages, triggers, and bulk data processing with BULK COLLECT / FORALL. Complex business logic encapsulated inside the database engine for maximum performance and security.
PL/SQL packages, procedures, functions, and triggers
BULK COLLECT / FORALL — millions of rows without row-by-row context switch
Pipelined table functions for streaming large result sets
Autonomous transactions for audit logging
Oracle APEX Development
Oracle Application Express (APEX) low-code application development — responsive web portals, dashboards, approval workflows, REST APIs, and data-entry applications built directly on the Oracle Database with no middleware layer required.
APEX 23.x — responsive applications on Oracle 19c/21c/23ai
Interactive grids, reports, charts, and dashboards
APEX REST APIs — consumed by React or Angular front-ends
Oracle APEX on Autonomous Database (ADB) in OCI
Oracle RAC & Data Guard High Availability
Oracle Real Application Clusters and Active Data Guard architecture — active-active multi-node clustering for OLTP scalability, synchronous and asynchronous standby databases for disaster recovery, and Data Guard broker for automated failover.
Oracle RAC — active-active multi-node clustering on Linux/Exadata
Active Data Guard — real-time standby with read offloading
Data Guard Broker — automated fast-start failover
Oracle GoldenGate — zero-downtime migrations and CDC replication
Zod Validation Layer
Oracle Database performance tuning — AWR and ASH analysis, SQL Tuning Advisor, missing index identification, SQL Plan Baseline locking, statistics management with DBMS_STATS, and In-Memory Column Store configuration for analytical query acceleration.
AWR and ASH analysis — identify top SQL, wait events, and resource bottlenecks
SQL Plan Baselines — lock optimal execution plans and prevent plan regression
Index Advisor and missing index identification with DBMS_SQLTUNE
React Hook Form + Zod resolver integration
ESLint Strict Configuration
@typescript-eslint/strict with CI enforcement — unsafe any casts, missing return types, and unsafe member access blocked before they reach code review.
Oracle E-Business Suite — custom reports, workflows, and API integrations
Oracle Fusion Applications — REST API integration and extension development
Oracle ADF (Application Development Framework) — form and UI customisation
EBS to Oracle Fusion migration — data mapping and cutover strategy
Code Audit & Consulting
On-premise Oracle Database migrated to Oracle Cloud Infrastructure — Autonomous Database, ExaCS, or Base Database Service. Zero-downtime migration using Oracle GoldenGate CDC replication, OCI network architecture, and post-migration performance validation.
On-premise Oracle → OCI Bare Metal or Exadata Cloud Service migration
Oracle Autonomous Database (ADB) provisioning and data load
Zero-downtime migration using Oracle GoldenGate CDC replication
OCI networking — VCN, FastConnect, and Database Cloud Service setup
DBA Managed Services
Workshops for your engineering team on generics, utility types, conditional types, mapped types, and advanced Zod patterns — delivered remotely, tailored to your codebase.
Proactive monitoring — OEM Cloud Control alerts and threshold management
RMAN backup validation, recovery testing, and PITR exercises monthly
Patch and upgrade management — quarterly PSU/RU patching on schedule
Named DBA available on Slack for P1 production incidents — 24/7 cover
Hire Oracle DBAs & Developers You Can Rely On
At Ahex Technologies, we don’t just write code — we own outcomes. From type architecture to post-launch monitoring, our Oracle DBA and development team is your end-to-end database engineering partner — responsive, transparent, and accountable.
3–5 days to onboard your dedicated Oracle DBA or developer
Certified Oracle DBA — RAC, Data Guard, RMAN, APEX, GoldenGate, OCI, and PL/SQL across the entire Oracle technology stackpes
Direct Slack access to your actual engineer — no account managers
Named, consistent developer — no bait-and-switch
Full code ownership from day one — no lock-in
Timezone-aligned — UK, UAE, and US hours coverage
2-week replacement guarantee if it's not the right fit
Ahex Oracle Partnership Standard
3–5 days
100%
Day 1
2 weeks
3 zones
// Signed
Secure by Default. Mission-Critical by Design.
The following are the Oracle Database security controls, availability standards, and engineering quality benchmarks Ahex applies to every Oracle engagement — built in from day one, not added as a checklist before go-live.
Oracle TDE Encrypts All Data at Rest
Oracle Transparent Data Encryption is enabled on all production databases Ahex manages — tablespace-level encryption protects data files, RMAN backups, and Data Guard redo logs without any application changes required. (prev: no implicit any, no unsafe assignments, no unchecked indexed access.
Branded / Opaque Types
Oracle Database Vault restricts privileged DBA access to sensitive application schemas — even SYS cannot SELECT application data without an authorised session, preventing insider data access and meeting ISO 27001 and SOC 2 access control requirements.
Zod Input Validation
Oracle Virtual Private Database (VPD) and Row-Level Security policies enforce data access rules at the database engine level — application users see only the rows their security context allows, enforced transparently regardless of which application or SQL tool they use.
Discriminated Union Errors
Oracle Audit Vault and Database Firewall provide tamper-proof unified audit trails — every DDL, DML, and privileged session logged, with real-time alerts on anomalous access patterns. Audit data stored separately from the production database to prevent tampering.
Dependency Auditing
Oracle quarterly CPU/PSU patch cycles applied on schedule on all Ahex-managed databases — critical security patches applied within the Oracle-recommended 90-day window, with pre-patch backups and a documented rollback procedure.
CI Type-Check Gate
All Oracle environments Ahex manages have validated RMAN backup schedules with monthly point-in-time recovery tests — backup success is confirmed nightly, and recovery capability is proven quarterly, not assumed.
Built to Compliance & Industry Standards
Our Oracle database engineering practices align with regulatory requirements across healthcare, finance, and data privacy — a typed codebase is also an auditable one.
HIPAA-Aware Development
Oracle TDE encrypts PHI columns at the tablespace level, VPD policies enforce row-level access control for PHI, and Unified Audit Trail logs every SELECT on PHI tables — PHI is separated from non-sensitive data at the type level — misuse flagged at compile time, not discovered in an audit.
Healthcare platforms, patient portals, HL7/FHIR integrations PCI DSS Type Patterns
Opaque CardNumber and CVV types prevent raw payment strings being passed through un-validated code paths — enforced by the compiler, not just policy.
Payment platforms, financial dashboards, trading portals GDPR — Oracle Data Masking & Subsetting
Oracle Data Masking and Subsetting separates PII from anonymised data models — accidental exposure of personal data caught before runtime in production.
EU, UK, and India data-privacy regulated products SOC 2 — Unified Audit Trail & AVDF
Typed event schemas ensure every audit log entry has a known, validated shape — no untyped JSON blobs in the compliance trail.
SaaS products targeting enterprise buyers with security reviews PCI DSS — Oracle TDE & Database Vault
Cardholder data stored in Oracle with Transparent Data Encryption enabled, Oracle Database Vault restricting DBA access to PCI-scoped schemas, Oracle Audit Vault capturing all access to cardholder tables, and network encryption via Oracle Native Network Encryption or TLS.
All Oracle databases storing or processing payment card data Oracle RAC SLA — 99.99% Uptime Guarantee
Oracle RAC + Active Data Guard architecture delivers a four-nines availability SLA for production OLTP databases — planned maintenance performed with rolling RAC node restarts, and unplanned node failure transparent to connected applications via TAF (Transparent Application Failover).
All mission-critical Oracle OLTP environments with zero-downtime requirements ISO 27001 — Oracle Security Controls
Oracle Database Vault access controls, Unified Audit Trail logging, TDE encryption at rest, network encryption in transit, quarterly patch compliance, and annual penetration testing of Oracle listener and TNS configuration — mapping directly to ISO 27001 Annex A database security controls.
Enterprise clients requiring certified development processes Oracle Wallet & Secrets Management
Oracle Wallet stores database credentials, TLS certificates, and TDE master encryption keys — no passwords stored in application configuration files, connection strings use Oracle Wallet authentication, and OCI Vault manages key rotation for Oracle 23ai and Autonomous Database environments.
All Oracle production databases managed by Ahex RMAN Backup Compliance & Recovery Testing
All Ahex-managed Oracle databases have documented RMAN backup schedules, validated backup integrity checks, and quarterly point-in-time recovery drills against a test environment — backup compliance reported monthly, and recovery capability is proven, not assumed.
All Ahex-managed Oracle production databases The Full Oracle Stack, Operated at Depth
From Oracle 19c / 21c / 23ai and PL/SQL to RAC, Data Guard, APEX, GoldenGate, OCI, SQL Developer, and OEM Cloud Control — every Oracle tool our DBAs and developers use daily in production.
Database Versions
Oracle release coverage
PL/SQL & Development
Database programming tools
High Availability & DR
Oracle HA and replication stack
Performance & Tuning
Oracle performance tooling
Security
Oracle security layer
Monitoring & Administration
Oracle DBA tooling
Cloud & Integration
Oracle Cloud and connectivity
Migration & ETL
Data movement and migration tooling
Oracle vs PostgreSQL vs SQL Server vs MySQL — An Honest Database Comparison
We work in all four. We give honest advice — including recommending PostgreSQL for greenfield cloud-native projects where Oracle licensing cost outweighs Oracle's enterprise feature advantages.
| Criteria | Oracle Database | PostgreSQL | SQL Server / MySQL |
|---|---|---|---|
| High availability (HA) | Oracle RAC — active-active multi-node, 99.99% uptime SLA | Patroni + streaming replication — active-standby, ~99.95% | SQL Server: Always On AG; MySQL: Group Replication — both active-standby |
| Procedural language | PL/SQL — most powerful database procedural engine, BULK COLLECT, pipelined functions, native compilation | PL/pgSQL — capable, growing; lacks Oracle BULK COLLECT and native compilation | T-SQL (SQL Server) — good; MySQL stored procs — limited |
| Partitioning | Oracle Partitioning — range, list, hash, interval, composite, reference, system partitioning (separate licence) | Built-in declarative partitioning — range, list, hash; no interval or reference | SQL Server: table partitioning (Enterprise only); MySQL: basic range/list |
| Security features | Oracle TDE, Database Vault, VPD, Unified Audit Trail, AVDF, Oracle Label Security — enterprise security suite built-in | Row-level security, pgcrypto, SSL/TLS — adequate but Oracle security suite is more comprehensive | SQL Server: TDE, Always Encrypted, RLS — strong; MySQL: basic encryption, limited auditing |
| Performance at scale | In-Memory Column Store, Result Cache, Parallel Query, Smart Scan on Exadata — fastest for mixed OLTP/OLAP | Strong OLTP performance; lacks in-memory column store; parallel query less mature | SQL Server: columnstore indexes strong; MySQL: limited analytical capabilities |
| Licensing cost | Highest — Enterprise Edition licence + option licences; Autonomous DB consumption-based on OCI | Free — open source; PostgreSQL is Ahex's recommendation for cost-sensitive greenfield projects | SQL Server: per-core Enterprise is expensive; MySQL Enterprise: moderate; Community: free |
| ERP / enterprise app support | Oracle EBS, Oracle Fusion, PeopleSoft, JD Edwards — all certified Oracle-only; no alternative supported | Not supported by Oracle EBS or Fusion — PostgreSQL cannot run Oracle ERP applications | SQL Server: supports Dynamics, SAP HANA alternatives; MySQL: limited enterprise ERP |
| Ahex recommendation | Best for: Oracle ERP environments, mission-critical OLTP, regulated industries (banking, healthcare, government), RAC/HA requirements | Best for: greenfield cloud-native applications, cost-sensitive projects, open-source stack requirement | SQL Server: Microsoft-stack teams; MySQL: web applications with simple data models |
Type Contract First. Shared Architecture. Secure, Performant, and Highly Available Throughout.
An Oracle-specific delivery process — schema design, PL/SQL development, HA architecture, security hardening, and performance validation completed in structured phases before production go-live. Quality and availability enforced at every phase, not compiler config defined before a single component is built. Safety enforced from sprint zero, not patched in retrospect.
Discovery & Architecture Design
Oracle environment assessment — current version, hardware, storage, workload profile, availability requirements, and compliance scope. Target architecture agreed: on-premise, OCI, RAC/non-RAC, Data Guard topology, backup strategy, and partitioning approach.
Schema Design & Environment Build
Logical and physical schema design, tablespace and storage layout, partitioning strategy, index design, Oracle security model (users, roles, VPD), RMAN backup configuration, and Data Guard standby provisioning — all in development environment before any production work begins.
PL/SQL Development & Integration
PL/SQL packages, stored procedures, triggers, and batch jobs developed, unit-tested with utPLSQL, and peer-reviewed. Application integration via JDBC, ODP.NET, or Oracle REST Data Services (ORDS). APEX application development if required.
Security Hardening & TDE Enablement
Oracle TDE enabled on all tablespaces, Database Vault realm configured for sensitive schemas, VPD policies applied, Unified Audit Trail activated, Oracle Wallet provisioned, and network encryption enforced. Security configuration documented and reviewed against compliance requirements.
Performance Tuning & Load Testing
AWR and ASH analysis on realistic data volumes, top SQL identified and tuned with SQL Tuning Advisor and manual execution plan analysis, SQL Plan Baselines locked for critical queries, and HammerDB or Swingbench load test at 2× expected peak before go-live approval.
DBA Managed Services & Patch Compliance
OEM Cloud Control monitoring with threshold alerts, monthly AWR performance review, quarterly CPU/PSU patch cycle, RMAN backup compliance reporting, Data Guard failover test annually, and a named DBA on Slack for P1 production incidents — 24/7 cover on critical environments.
Three Ways to Work With Ahex Oracle DBAs and Developers
All models include documented schema DDL, PL/SQL unit test suites with utPLSQL, architecture decision records, named DBAs, and full code ownership from day one.
FIXED BUDGET
Cost is locked in a fixed-scope model. Ideal when the roadmap is well-defined and you want budget certainty.
- Pay for specific milestones
- Pricing based on requirements
- Fixed delivery date
- Low management overhead
Billing
Fixed / Milestone
Specific, well-defined scope
Best For
A clear brief → build → ship
Dedicated Team
A dedicated pod you optimise, scale, and augment your in-house team with. Best for ongoing product development.
Best suited for teams that need predictable sprint velocity.
- Personalised team
- No lock-in
- Real-time updates
- Contributions & standups
Billing
Monthly retainer
Best For
Long-term, cost-optimised delivery
Model Fit
Team that owns the roadmap
Most Popular
TIME & MATERIAL
In this model, there is no fixed time or budget. You will pay for the actual hours worked or materials completed and used.
- Volume of your time
- Discuss and understand
- Pay per task
- Full flexibility on scope
Billing
Hourly rate card
Speed, scope, resource coordination
Best For
Evolving, flexible scope
Why Choose Oracle Database
Your teams will ship faster, safer code — and your production systems will have fewer production database incidents — when Oracle is architected and managed correctly from day one.
Mission-Critical Availability With Oracle RAC
Oracle RAC + Active Data Guard delivers 99.99% database uptime for OLTP workloads — planned maintenance with rolling restarts, unplanned node failure transparent to applications via TAF. No other database architecture delivers active-active clustering at this maturity level.
PL/SQL Executes Business Logic Inside the Engine
Oracle PL/SQL processes millions of rows per second inside the database — BULK COLLECT and FORALL eliminate row-by-row context switching, native compilation accelerates CPU-bound procedures, and pipelined table functions stream large result sets without materialising them in memory.
Oracle Partitioning Transforms Query Performance at Scale
Partition pruning eliminates irrelevant data blocks before execution — a 10TB table with range partitioning by date returns last-30-day data in milliseconds. Partition exchange enables near-instant bulk loads. Local partitioned indexes maintain performance without global index rebuilds.
Oracle TDE + Database Vault Meets Every Enterprise Security Standard
Transparent Data Encryption protects data files and backups without application changes. Database Vault prevents even privileged DBAs from accessing sensitive application data. Combined with VPD row-level security and Unified Audit Trail, Oracle satisfies SOC 2, HIPAA, PCI DSS, ISO 27001, and GDPR data security requirements out of the box.
Oracle APEX Builds Enterprise Portals in Days, Not Weeks
Oracle APEX 23.x builds production-grade web applications, dashboards, REST APIs, and approval workflows directly on the Oracle Database — no application server, no middleware, no separate web framework. 75,000+ organisations use APEX in production, including NHS Digital and major global banks.
Oracle 23ai Brings Native AI Vector Search to the Enterprise RDBMS
Oracle Database 23ai adds native AI Vector Search — store and query vector embeddings alongside relational data in the same Oracle Database, enabling RAG-based AI applications without a separate vector database. Combines OLTP performance, SQL familiarity, and enterprise security with modern AI workloads.
Certified Oracle DBAs — Not Generalist Database Administrators
Every Ahex Oracle DBA holds Oracle Database Administration certification. Our team has hands-on experience with Oracle RAC, Data Guard, RMAN, GoldenGate, APEX, and OCI — not generalist DBAs who also do Oracle. Clients get Oracle specialists who have seen and resolved every class of Oracle production incident.
Oracle E-Business Suite Requires Oracle — There Is No Alternative
Oracle EBS, Oracle Fusion Applications, PeopleSoft, JD Edwards, and Siebel are certified exclusively on Oracle Database. If your organisation runs Oracle ERP, Oracle Database is non-negotiable — and Ahex provides both the Oracle DBA expertise and the EBS customisation and integration services in a single engagement.
We Type Faster with AI — So You Ship Sooner
55%
Faster Type Migration
AI generates Zod schemas from JSON samples, infers types from existing JS, and suggests typed replacements for any casts — saving 2–3 days per migration sprint.
40%
Reduction in Review Cycles
AI-assisted code review flags unsafe type patterns, missing return types, and any-cast misuse before human review — fewer back-and-forth cycles and faster PR merges.
70%
Test Coverage Generated Automatically
utPLSQL test generation, APEX page scaffolding, and schema migration scripts auto-generated from Zod schemas and function signatures — QA phase starts with strong coverage.
30 %
Shorter Overall Delivery Time
Combined AI acceleration across all phases consistently cuts total delivery timelines by 25–35% without scope compromise.
GitHub Copilot + Claude Code
PL/SQL inline completion, schema design suggestions, APEX component generation, and SQL query optimisation hints. Every Ahex Oracle developer uses GitHub Copilot and Oracle SQL Developer AI Companion as daily accelerators — all output reviewed by a certified DBA before deployment.
utPLSQL & APEX Scaffolding
AI generates utPLSQL test package stubs from PL/SQL procedure signatures, APEX page XML scaffolding from data model descriptions, and RMAN script templates from backup requirement specifications — 60% of test and operational scaffolding produced before QA phase, reviewed by a senior DBA on every engagement.
AI-Generated Oracle Documentation
DDL documentation, RMAN runbooks, Data Guard failover procedures, and APEX application documentation auto-generated from schema metadata and deployment scripts — always in sync with the actual production Oracle environment.
AI AWR Performance Analysis
AI-assisted AWR report analysis surfaces the top wait events, missing indexes, and SQL execution plan regressions with suggested remediation steps — DBAs review every recommendation before applying to production. Shift-left performance tuning.
All AI-generated PL/SQL, APEX code, and database scripts are reviewed, tested, and owned by a named Ahex certified DBA engineer before it ships. We use AI to move faster — not to skip the AWR analysis, bypass the utPLSQL test requirement, or automate production changes without DBA review.
Six Oracle Database Problems Every Enterprise DBA Team Encountersg Team Encounters
Every enterprise Oracle environment encounters these sooner or later. These are the problems our engineers diagnose repeatedly and know how to prevent from sprint zero.
Oracle ERP Report Takes 14 Seconds — Finance Team Abandoning the System
Problem
The month-end Oracle EBS financial consolidation report takes 14 seconds per ledger. Finance has 80 ledgers. The monthly close takes 19 hours of DBA-supervised batch runs. The team is running the report from SQL*Plus manually because the APEX dashboard times out. The business is considering replacing the ERP.
Solution
Ahex runs AWR and ADDM analysis, identifies 23 missing indexes and 8 PL/SQL packages performing row-by-row FORALL operations incorrectly. Indexes added, packages rewritten with proper BULK COLLECT. SQL Plan Baselines locked on the 12 heaviest queries. Report time drops from 14 seconds to 900ms per ledger — monthly close completes in 90 minutes instead of 19 hours.
Oracle RAC Node Failure Takes Application Offline for 8 Minutes — TAF Not Configured
Problem
One of two Oracle RAC nodes fails at 9am on a Monday. The application is offline for 8 minutes while Oracle Clusterware completes instance recovery. The customer has a two-node RAC but never configured Transparent Application Failover — all application sessions on the failed node reconnect manually after the incident, and users lose uncommitted transactions.
Solution
Ahex configures TAF (Transparent Application Failover) at the Oracle service level with BASIC failover for SELECT sessions and SESSION failover for DML. JDBC connection pools configured with Oracle FAN (Fast Application Notification). Tested with a simulated node kill — application failover completes in under 10 seconds, no manual intervention, and SELECT sessions reconnect automatically. The next node failure is transparent to users.
Oracle Data Guard Standby Is 4 Hours Behind Primary — RPO Violated
Problem
The Oracle Data Guard standby database is 4 hours behind the primary during peak load. The agreed RPO is 30 minutes. The redo apply process is running but transport lag is growing. The team does not know whether the standby is actually usable for failover — it has never been tested. An audit is in 3 weeks.
Solution
Ahex diagnoses the lag — redo transport is configured for ASYNC with a redo log buffer that is undersized for peak redo generation rate. The LOG_ARCHIVE_DEST redo transport is reconfigured with COMPRESSION=ENABLE and the standby redo log group count increased. Transport lag drops to under 2 minutes at peak. Data Guard Broker fast-start failover is then enabled, and a failover drill is performed against a test clone — the audit passes with a verified RPO of under 5 minutes.
Oracle Database Upgrade from 12c to 19c Stalls — 40 Invalid Objects After Upgrade
Problem
An Oracle 12c to 19c in-place upgrade completes, but post-upgrade validation reveals 40 invalid PL/SQL objects, 3 packages that reference deprecated dbms_xmldom APIs removed in 19c, and a critical batch job that used an undocumented internal Oracle package that no longer exists. The application team declares a production incident. The upgrade was not preceded by a test environment rehearsal.
Solution
Ahex runs the Oracle Pre-Upgrade Information Tool and Database Upgrade Assistant (DBUA) dry-run on a cloned environment first — all 40 invalid objects and deprecated API usages are identified before the production upgrade window. The 3 deprecated packages are rewritten to supported 19c equivalents, the batch job is tested end-to-end in the test clone, and the production upgrade completes in the approved maintenance window with zero post-upgrade invalid objects.
Oracle GoldenGate Replication Stops with ORA-01403 After Schema Change
Problem
A developer adds a NOT NULL column with a DEFAULT VALUE to a production Oracle table without notifying the GoldenGate team. GoldenGate Replicat stops on the target with ORA-01403: no data found. The source and target databases are now out of sync. The GoldenGate extract is still running and has accumulated 48 hours of archived redo that has not been applied to the target. The team does not know how to resync without data loss.
Solution
Ahex diagnoses the root cause — Replicat encountered the new column with no mapped equivalent in the GoldenGate column mapping. The target table is altered to add the column, GoldenGate column mapping is updated, and Replicat is restarted from the last successfully committed transaction using HANDLECOLLISIONS to reconcile the 48-hour backlog without data loss. A DDL change control process is documented and agreed with the development team to prevent recurrence.
Oracle AWR Shows "DB File Sequential Read" as Top Wait — DBAs Don't Know Where to Start
Problem
Oracle OEM alerts show "db file sequential read" as the top wait event consuming 65% of total database time. The DBA team generates an AWR report but cannot identify which SQL statements are responsible, why the indexes are not being used, or whether the storage I/O throughput is actually the bottleneck or just a symptom. The business reports "the database is slow" but no one can isolate the root cause.
Solution
Ahex performs a structured AWR and ASH analysis — identifies the top 5 SQL statements by buffer gets and physical reads, traces each to a specific application module using V$SQLAREA and DBMS_SQLTUNE. Three statements are missing composite indexes and performing full table scans on 200M-row tables. Two statements have execution plan regressions caused by stale statistics. Indexes added, statistics regathered with DBMS_STATS, and SQL Plan Baselines locked for the top 10 queries. Top wait event drops from 65% to 11% of database time within one week.
What We Build Best — Real Expertise, Not Just Slides
Six solution types where our Oracle DBAs and developers have deep, repeated delivery experience — every stack listed is what we shipped in production in the last 18 months.
Oracle EBS Customisation & Integration
Oracle E-Business Suite custom reports, workflows, form personalisation, Oracle ADF customisations, REST API integrations, and EBS-to-modern-app data bridges. SPAs with strict tsconfig, generics-first component design, typed state management (NgRx / Zustand), and Zod-validated API layers across the UI.
NestJS / Express Back-End APIs
Fully typed REST and GraphQL APIs with NestJS dependency injection, Prisma typed models, Zod request validation middleware, and tRPC for end-to-end type safety.
Nx / Turborepo Monorepos
Multi-package monorepos with shared @company/types, shared tsconfig bases, ESLint boundary rules, and Nx affected builds that cut CI time by ~60%.
Oracle Database Performance Tuning
Zero-regression performations using allowJs incremental strategy, type-coverage audits, any-elimination phases, and strict mode graduation — production stays deployable throughout.
Oracle APEX Low-Code Applications
Enterprise portals, dashboards, approval workflows, and data-entry applications built directly on Oracle Database with Oracle APEX 23.x. AWS and Vercel Oracle Cloud Infrastructure migration, Autonomous Database provisioning, ExaCS setup, and OCI network configuration — Zod-validated payloads, and cold-start optimised bundles under 1MB.
Oracle RAC & Data Guard Architecture
Active-active RAC cluster design, Active Data Guard standby provisioning, Data Guard Broker fast-start failover configuration, and GoldenGate CDC replication with shared types in a monorepo, single CI/CD pipeline, tRPC or OpenAPI contracts, and one team owning the entire stack from DB to UI.
Industry Standards for Enterprise-Grade Compliance & Standards
The following are the industry standards and compliance that we align Oracle with. Our team ensures that these are built into the markup from sprint one only.
Web Content Accessibility Guidelines
WCAG 2.1
AI accessibility scanning flags WCAG violations in real time during development — not post-launch in an audit.
- Required for: Government, Education, Healthcare, Finance
US Federal Accessibility
Section 508
Section 508 for the USA. An U.S. federal accessibility standard that requires government agencies and their digital services to be accessible to people with disabilities.
- Required for: US Government contractors
Americans with Disabilities Act
ADA
A U.S. civil rights law. It promotes the idea that people with disabilities should also have equal access. Its web accessibility requirements encourage businesses to provide inclusive online experiences.
- Required for: All US-facing businesses
Cookie Consent & Data Privacy
GDPR
Standards that help websites collect user data transparently. Supports GDPR and CCPA. Gives users control over their data.
- Required for: EU-facing businesses
W3C Oracle
W3C
W3C Oracle Validation ensures that the Oracle development follows official web standards. It must improve compatibility with browsers, reliability, and overall user experience.
- Best practice for: All websites
Structured Data Markup
Schema.org
Standardized format that helps search engines understand content on the webpages. Improves SEO and crawlability.
- Required for: SEO, Google rich results
Industries We Serve with Oracle Database
We build and manage Oracle Database systems for enterprises across all major verticals — from healthcare typed APIs to fintech platforms, logistics systems to SaaS products. Click an industry to explore what we've delivered.
Healthcare and Fitness
Our solutions for healthcare and fitness focus on developing user-friendly interfaces for fitness apps, appointment scheduling systems, and health tracking platforms, ensuring secure and efficient data management.
- HIPAA-compliant patient portals
- Cross-device fitness UI experiences
- AI-powered health dashboards
- Real-time telehealth interfaces
Real Estate
We help real estate companies build immersive property listings, interactive maps, and responsive websites that streamline property searches and improve customer engagement.
- GIS-enabled property mapping
- AR/VR property walkthroughs
- CRM-integrated listing portals
- Real-time property analytics
Automotive and Manufacturing
Our front end services help automotive and manufacturing companies build robust applications for managing inventory, tracking production, and enhancing customer engagement through intuitive interfaces.
- IoT-powered monitoring dashboards
- MES-integrated production systems
- Predictive maintenance interfaces
- Supply chain visibility platforms
Banking & Finance
We deliver secure and compliant front-end solutions for financial institutions, enhancing user experience through intuitive dashboards, transaction management systems, and mobile banking apps.
- PCI-DSS compliant interfaces
- AI-driven financial dashboards
- Secure payment interfaces
- Live transaction monitoring UIs
Travel & Hospitality
Our frontend development services for tourism and hospitality focus on creating interactive maps, virtual tours, and streamlined booking interfaces that enhance the customer journey from discovery to booking.
- API-driven booking engines
- Dynamic pricing dashboards
- AI-powered recommendation interfaces
- Multi-channel reservation systems
Entertainment and Media
We help media and entertainment companies build intuitive systems for content delivery and consumption, including real-time single-page applications and personalized content recommendations that keep audiences engaged.
- OTT streaming interfaces
- Real-time content delivery platforms
- Dynamic recommendation experiences
- Live media analytics dashboards
Technology and Software
Our expertise extends to creating modern, scalable front-ends for software applications, ensuring fast performance, intuitive navigation, and seamless integration with backend systems.
- SaaS product dashboards
- Microservices-based frontends
- API-first web interfaces
- Mobile app UIs
Retail & E-Commerce
We empower e-commerce platforms with seamless checkout processes, intuitive product navigation, and responsive designs that boost sales and customer satisfaction.
- Dynamic product recommendation widgets
- Headless commerce frontends
- Omnichannel shopping interfaces
- Real-time inventory dashboards
Education
Our front-end services for education include developing interactive learning platforms, online course management systems, and student portals that enhance engagement and accessibility.
- LMS-integrated learning portals
- AI-based learning dashboards
- Interactive virtual classrooms
- Gamified learning interfaces
Award-Winning Innovation Solutions
Known for building innovative technology solutions across diverse industries, we’ve received multiple awards and recognitions from top B2B platforms.
Clutch 1000 Company – 2025
Recognized by Clutch among the top 1000 global companies for excellence in service and delivery in 2025
Clutch Global Award Winner – Fall 2024
Awarded by Clutch as a Global Leader for outstanding performance and client satisfaction in Fall 2024
Clutch Global Award Winner – Spring 2024
Recognized by Clutch as a Global Leader for delivering high-quality solutions and consistent client success in Spring 2024
Clutch Champion – Fall 2024
Honored by Clutch as a Champion for sustained excellence, industry leadership, and exceptional client feedback in Fall 2024
Clutch Champion – Spring 2024
Honored by Clutch as a Champion for sustained excellence, industry leadership, and exceptional client feedback in Fall 2024
Case Study
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Looking for a Solution? Let's Talk
- sales@ahex.co.in
- (India) +91 - 8885564224
- (USA) +1 - 6503197394
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