OCI Database Management

NEVER Do This

❌ NEVER use HIGH service name for non-critical workloads (3x cost trap)

ADB service names:
- HIGH:   Dedicated OCPU, 1× concurrency per OCPU, highest priority
- MEDIUM: Shared OCPU, 2× concurrency per OCPU
- LOW:    Most sharing, 3× concurrency per OCPU

# WRONG - using HIGH for background jobs
connection_string = adb_connection_strings["high"]  # 3x wasted OCPU-hours!

# RIGHT - match service to workload
connection_string = adb_connection_strings["low"]    # Batch, reporting, data loads
connection_string = adb_connection_strings["high"]   # Interactive OLTP only

Cost impact: Using HIGH vs LOW for connection pools wastes 3x OCPU allocation.