OCA Oracle Database 11g Administration I Exam Guide (Exam 1Z0-052)

10 Managing Data and Concurrency

CERTIFICATION OBJECTIVES

10.01 Manage Data Using DML

10.02 Identify and Administer PL/SQL Objects

10.03 Monitor and Resolve Locking Conflicts

Two-Minute Drill

Self Test

Data in a relational database is managed with the DML (data manipulation language) commands of SQL. These are INSERT, UPDATE, DELETE, and (with more recent versions of SQL) MERGE. Associated with these are the transaction control statements COMMIT and ROLLBACK. These commands are dealt with in detail in the SQL curriculum and tested in the appropriate ...