How do I loop a stored procedure in Oracle?
“FOR LOOP” statement is best suitable when you want to execute a code for a known number of times rather than based on some other conditions. In this loop, the lower limit and the higher limit will be specified and as long as the loop variable is in between this range, the loop will be executed.
Can we use FOR LOOP in Oracle?
In Oracle, the FOR LOOP allows you to execute code repeatedly for a fixed number of times.
How does FOR LOOP work in Oracle?
The LOOP statement executes the statements in its body and returns control to the top of the loop. Typically, the body of the loop contains at least one EXIT or EXIT WHEN statement for terminating the loop. Otherwise, the loop becomes an infinite loop.
How do you declare a loop in PL SQL?
PL/SQL loops can be labeled. The label should be enclosed by double angle brackets (<< and >>) and appear at the beginning of the LOOP statement. The label name can also appear at the end of the LOOP statement. You may use the label in the EXIT statement to exit from the loop.
Is the oracle for loop in stored procedure not looping?
If the privileges on the DestUser tables are granted directly, on the other hand, the same definer’s rights stored procedure would run successfully. And it would work in an anonymous PL/SQL block.
Why does oracle for loop return 0 rows?
Since privileges granted through a role are not visible in a definer’s rights stored procedure, this would cause the SELECT statement in your loop to return 0 rows (though running the same query interactively would return the rows you expect).
How does the for loop statement in PL / SQL work?
PL/SQL FOR LOOP executes a sequence of statements a specified number of times. The PL/SQL FOR LOOP statement has the following structure: The index is an implicit variable. It is local to the FOR LOOP statement. In other words, you cannot reference it outside the loop. Inside the loop, you can reference index but you cannot change its value.
How does the Cursor FOR loop statement work in Oracle?
Although your code looks as if it fetched one row at a time, Oracle Database fetches multiple rows at a time and allows you to process each row individually. Let’s look at some examples of using the cursor FOR LOOP statement to see how it works. The following example declares an explicit cursor and uses it in the cursor FOR LOOP statement.