Oracle Loop: How to Implement Iterations in PL/SQL

In Oracle databases, there is no direct for loop statement like in other programming languages. However, you can achieve looping operations using LOOP, EXIT, and END LOOP.

下面是一个在Oracle中使用LOOP语句实现简单循环的示例:

DECLARE
    i NUMBER := 1;
BEGIN
    LOOP
        DBMS_OUTPUT.PUT_LINE('Current value of i is ' || i);
        
        i := i + 1;
        
        IF i > 5 THEN
            EXIT;
        END IF;
    END LOOP;
END;

In this example, we set a variable i to 1 and then use a LOOP statement to start a loop. During each iteration, we output the current value of i and increment it. To exit the loop when i is greater than 5, we use an EXIT statement.

The logic of the LOOP statement can be adjusted according to specific needs and conditions to achieve different loop operations.

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