SQL - Data Definition / Data Dictionary Language (DDL) (CREATE, ALTER, DROP)

SQL - Data Control Language (DCL) (GRANT, REVOKE)

SQL - Data Manipulation Language (DML) (SELECT, UPDATE, INSERT, DELETE)

SQL - Transaction Control (TCL) (COMMIT, ROLLBACK)

NLS (National Language Support)

UDML is the abbreviation for Universal Database Markup Language

stale : This term is use with the Oracle Database - Materialized view (Snapshot) to say that a materialized view is out-of-sync with the details.

serial : non-parallel. This term is used for instance when you talk about plan in Oracle Database - Explain Plan.

skewed data : values with large variations in number of duplicates. Example when you measure the Oracle Database - The Query Plan Estimator from a column.

buckets : band of data in a Oracle Database - Statistics - Table