October 2006
Intermediate to advanced
720 pages
17h 56m
English
Content preview from Oracle Database 10g Express Edition PHP Web Programming
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Using Reference Cursors and PL/SQL Stored Procedures
PL/SQL required a look-alike data type for the result set from a SELECT statement to move return sets from one program to another. Oracle developed the system reference cursor data type to meet this need. Reference cursors act as pointers to result sets in query work areas. You use them when you want to query data in one program and process it in another, especially when the two programs are in different programming languages. You have the option of implementing a reference cursor in two ways: one is strongly typed and the other, weakly typed.
A strongly typed reference cursor is explicitly defined by assigning a %ROWTYPE attribute to the cursor. The %ROWTYPE attribute maps the structure from ...
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