| Abbreviation |
Description |
| KA |
Access Layer |
| KC |
Cache Layer |
| KD |
Data Layer |
| KG |
Generic Layer |
| KJ |
Lock Manager Layer |
| KK |
Compilation Layer - Parse SQL, compile PL/SQL |
| KQ |
Query Layer |
| KS |
Services Layer |
| KT |
Transaction Layer |
| KV |
Kernel Variables (eg. x$KVIS and X$KVII) |
| KX |
Execution Layer - Bind and execute SQL and PL/SQL |
| KZ |
Security Layer - Validate privs |
| K2 |
Distributed Execution Layer - 2PC handling |
| NPI |
Network Program Interface |
| ODS |
Operating System Dependencies |
| OPI |
Oracle Program Interface |
| RPI |
Recursive Program Interface |
| S |
Operating System Dependencies |
