Oracle development services for organisations where the database runs payroll, processes transactions, and holds thirty years of business data. PL/SQL that's maintainable, not legacy spaghetti. RAC configurations that actually failover when tested. Autonomous Database migrations that preserve performance. We work inside Oracle — schemas, patches, HA, and cloud migration — with the discipline enterprise data demands.
Why Entalogics for Oracle
The Oracle estates we audit always have the same problems — patches two quarters behind, PL/SQL packages with 10,000 lines nobody dares refactor, RAC failover untested since initial setup, and a licensing model so complex that nobody knows if they're compliant. Oracle is the most capable enterprise database. Most installations don't operate it like one.
Oracle ships Critical Patch Updates every quarter for a reason. Security vulnerabilities, stability fixes, and compliance requirements. We apply patches on schedule with tested rollback plans — not six months late because nobody scheduled the downtime window.
Business logic in packages. Data access in separate packages. No 10,000-line procedures mixing validation, DML, and reporting. Refactorable, testable, maintainable PL/SQL that the next DBA can actually read.
RAC for scale-out. Data Guard for DR. Switchover tested quarterly with measured RTO/RPO. Not assumed to work because it was configured three years ago by a contractor who left.
Zero Downtime Migration to OCI Autonomous Database for workloads that benefit from auto-tuning and auto-patching. On-prem or Exadata Cloud when compliance, latency, or licensing requires it.
When Oracle, when not
Oracle licensing, support, and operational complexity exceed any other database platform. The cost of getting it wrong compounds over decades. We'll tell you on the first call what your Oracle estate actually needs.
STAY ON ORACLE WHEN
CONSIDER MIGRATION WHEN
WE SAY NO WHEN
What we build on Oracle
The shapes of Oracle development work we deliver most. Each built for long-term stability — not just go-live.
Packages, procedures, functions built with proper separation of concerns. Legacy PL/SQL refactored into maintainable, testable units. No more 10,000-line procedures.
RAC for scale-out HA. Data Guard for cross-site DR. Switchover tested and documented. RTO/RPO measured — not assumed.
On-prem to OCI Autonomous Database via Zero Downtime Migration. Performance baselined, PL/SQL validated, licensing optimised with BYOL.
AWR analysis, SQL tuning advisor, execution plan review, index strategy. The queries taking minutes reduced to seconds — with before and after evidence.
Quarterly CPU patches applied on schedule. Major version upgrades (19c to 26ai) with AutoUpgrade. Tested, documented, with rollback plans.
Licensing audit, feature usage analysis, BYOL assessment, consolidation planning. Know exactly what you're licensed for — before Oracle audits you.
The playbook
Oracle patterns from real enterprise estates — not Oracle University labs.
P01
Business logic in packages. Unit tested with utPLSQL. Test coverage on critical procedures. Refactored code that survives the next DBA handover.
P02
Applied in test, validated, promoted to production within the quarter. Rollback plan documented. No skipped quarters. No audit surprises.
P03
Switchover executed, RTO measured, RPO validated. Documentation updated. The HA configuration that works when it needs to — not just when it was set up.
P04
AWR snapshots analysed for top SQL, wait events, and resource contention. SQL Tuning Advisor recommendations validated and applied. Measured improvement on each change.
P05
ZDM for migrating to Autonomous Database or Exadata Cloud. Performance baselined pre-migration. PL/SQL compatibility validated. Cutover with near-zero downtime.
P06
`DBA_FEATURE_USAGE_STATISTICS` reviewed. Features enabled but not licensed identified before Oracle does. BYOL assessment for cloud migration cost modelling.
Signature case
A regional bank on Oracle 19c on-prem — patches 9 months behind, AWR showing top SQL consuming 60% of CPU, Data Guard switchover untested for 2 years, and licensing compliance unknown. Applied patches, tuned top 15 SQL statements, tested Data Guard switchover, audited licensing, and migrated the reporting workload to Autonomous Database in 14 weeks. CPU utilisation dropped 40%. Switchover RTO confirmed at 45 seconds.
Before
19c, 9 months unpatched · top SQL at 60% CPU · DG untested · licensing unknown
After
19c patched + ADB for reporting · CPU −40% · DG RTO 45s verified · licensing compliant
Engagement shape
A typical Oracle engagement. We tune, patch, or migrate database by database — the current estate stays live while we work.
Two senior Oracle DBAs. AWR analysis, patch status review, HA configuration check, licensing feature usage audit. A ranked, dollarized RFC.
Top SQL tuned, critical patches applied to test, Data Guard switchover tested. Measurable improvement in week two.
Patches promoted to production, PL/SQL refactored, Autonomous Database migration baselined. Your applications keep running.
Patching schedule established. HA verified. Runbook handed to your team — or we stay on retainer.
Stack
Our default Oracle development stack — picked for enterprise production.
Engagement
No hourly retainer that bills for "thinking time." Pick a lane that matches your stage; everything is fixed-quote or transparently rated.
A defined scope, a fixed price, a senior-only team. From audit to production-ready in 8–16 weeks.
$15k–$30k
FIXED SCOPE
Embedded engineers in your team. Senior Oracle DBAs and PL/SQL developers. Pause, resize, end with 30 days' notice.
$5k / eng / mo
PER ENGINEER
A long-term partner for enterprise Oracle — patching cadence, HA testing, cloud migration roadmap, licensing strategy, hiring help.
custom
PROCUREMENT-FRIENDLY
Founder-direct
Thirty minutes with the founder. We'll bring a senior Oracle DBA, the relevant playbook, and a candid read on whether your Oracle estate needs tuning, migration, or a different database entirely.
