This is the sixth edition of a well established title that has been updated for the latest version of PL/SQL (21c). The book opens with a checklist of the new features in Oracle 21c before the actual ...

An expression of any type. COUNT_BIG doesn't support aggregate functions or subqueries in an expression. COUNT_BIG(*) returns the number of items in a group. This count includes NULL values and ...

Describes how to use the change tracking functions to obtain changes and information about the changes that were made to a database. This rowset function is used to query for change information. The ...