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Oracle PL/SQL for DBAs
book

Oracle PL/SQL for DBAs

by Arup Nanda, Steven Feuerstein
October 2005
Intermediate to advanced content levelIntermediate to advanced
454 pages
14h 44m
English
O'Reilly Media, Inc.
Content preview from Oracle PL/SQL for DBAs

Control Statements

There are two types of PL/SQL control statements : conditional control statements and sequential control statements . Almost every piece of code you write will require conditional control, which is the ability to direct the flow of execution through your program based on a condition. You do this with IF-THEN-ELSE and CASE statements (CASE statements are available in Oracle9i Database and Oracle Database 10g). There are also CASE expressions ; while not the same as CASE statements, they can sometimes be used to eliminate the need for an IF or CASE statement altogether. Far less often, you will need to tell PL/SQL to transfer control unconditionally via the GOTO statement , or explicitly to do nothing via the NULL statement .

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Publisher Resources

ISBN: 0596005873Supplemental ContentErrata Page