October 2002
Intermediate to advanced
688 pages
14h 14m
English
Content preview from Oracle® PL/SQL® Interactive Workbook, Second Edition
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Lab 9.1 Cursor Manipulation
Lab ObjectivesAfter this Lab, you will be able to: |
In order for Oracle to process an SQL statement, it needs to create an area of memory known as the context area; this will have the information needed to process the statement. This information includes the number of rows processed by the statement, a pointer to the parsed representation of the statement (parsing an SQL statement is the process whereby information is transferred to the server, at which point the SQL statement is evaluated as being valid). In a query, the active set refers to the rows that will be returned.
A cursor is a handle, or pointer, to ...
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