PL/SQL FOR LOOP
Along with SQL queries PL/SQL supports looping. FOR loop is a type of control statement. It is used to perform repetitive tasks. It is used to execute the set of statements for a specific number of times. To execute for loop, start and end values are provided. During each iteration counter is incremented by 1.
Syntax:
DECLARE
–declare loop variable and provide its datatype
loop_varaible datatype;
BEGIN
–for loop with start and end value
FOR loop_variable in start_value .. end_value LOOP
set of statements
END LOOP;
END;
/
PL/SQL For Loop
PL/SQL stands for Procedural Language/ Structured Query Language. It has block structure programming features. With PL/SQL, you can fetch data from the table, add data to the table, make decisions, perform repetitive tasks, and handle errors.PL/SQL supports SQL queries. PL/SQL contains declaration block, execution block, and exception block. Declare and exception blocks are optional.
In this article, we delve into the versatility of the PL/SQL FOR loop, a key construct for procedural programming in Oracle databases. We’ll explore its syntax, provide examples of its application, demonstrate the use of the REVERSE keyword for reverse iteration, and discuss the effectiveness of nested FOR loops.
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