How do you write a FOR LOOP in PL SQL?

How do you write a FOR LOOP in PL SQL?

PL/SQL For Loop Example 2

  1. DECLARE.
  2. VAR1 NUMBER;
  3. BEGIN.
  4. VAR1:=10;
  5. FOR VAR2 IN 1..10.
  6. LOOP.
  7. DBMS_OUTPUT.PUT_LINE (VAR1*VAR2);
  8. END LOOP;

What is loop statement in PL SQL?

The LOOP statement executes a sequence of statements within a PL/SQL code block multiple times. WHILE statement (PL/SQL) The WHILE statement repeats a set of SQL statements as long as a specified expression is true. The condition is evaluated immediately before each entry into the loop body.

How do I run a SQL query in a FOR LOOP?

Running a Query Inside the Loop

  1. WHILE @Counter <= @MaxOscars.
  2. BEGIN.
  3. SET @NumFilms =
  4. SELECT COUNT(*)
  5. FROM tblFilm.
  6. WHERE FilmOscarWins = @Counter.
  7. SET @Counter += 1.
  8. END.

Can we use FOR LOOP in SQL?

In SQL Server, there is no FOR LOOP. However, you simulate the FOR LOOP using the WHILE LOOP.

How many types of loop are there in PL SQL?

4 types
There are 4 types of PL/SQL Loops.

What are 3 types of loops in SQL?

Controlling Loop Iterations: LOOP and EXIT Statements. LOOP statements execute a sequence of statements multiple times. There are three forms of LOOP statements: LOOP , WHILE-LOOP , and FOR-LOOP . For a description of the syntax of the LOOP statement, see “LOOP Statements”.

What are the benefits of cursor FOR loop?

PL/SQL cursor FOR loop has one great advantage of loop continued until row not found. In sometime you require to use explicit cursor with FOR loop instead of use OPEN, FETCH, and CLOSE statement. FOR loop iterate repeatedly and fetches rows of values from database until row not found.

Can I use for loop in SQL?

In SQL Server, there is no FOR LOOP.

Can we write loop in SQL query?

In programming, a loop allows you to write a set of code that will run repeatedly within the same program. Many programming languages have several different types of loop to choose from, but in SQL Server there is only one: the WHILE loop. If you find yourself frequently (more than once!)

Which is an example of a for loop in PL / SQL?

PL/SQL FOR LOOP examples. Let’s take some examples of using the FOR LOOP statement to understand how it works. A) Simple PL/SQL FOR LOOP example. In this example, the loop index is l_counter, lower_bound is one, and upper_bound is five. The loop shows a list of integers from 1 to 5.

When to use reverse keyword in PL / SQL for loop?

However, if you want to force the loop to iterate in a downward way from the higher_bound to the lower_bound, you can use the REVERSE keyword after the IN keyword. You must have at least one executable statement between LOOP and END LOOP keywords. In the first example, we print integers from 1 to 10 by using PL/SQL FOR loop as the code below:

When to run for loop statement in SQL?

PL/SQL evaluates lower_bound and upper_bound once, when the FOR LOOP statement is entered, and stores them as temporary PLS_INTEGER values, rounding them to the nearest integer if necessary. If lower_bound equals upper_bound, the statements run only once. If lower_bound does not equal upper_bound when the FOR LOOP statement begins to run, then:

How does the Cursor FOR loop statement work in SQL?

Introduction to PL/SQL cursor FOR LOOP statement. The cursor FOR LOOP statement an elegant extension of the numeric FOR LOOP statement. The numeric FOR LOOP executes the body of the loop once for every integer value in a specified range. Similarly, the cursor FOR LOOP executes the body of the loop once for each row returned by a query.

How do you write a FOR LOOP in PL SQL? PL/SQL For Loop Example 2 DECLARE. VAR1 NUMBER; BEGIN. VAR1:=10; FOR VAR2 IN 1..10. LOOP. DBMS_OUTPUT.PUT_LINE (VAR1*VAR2); END LOOP; What is loop statement in PL SQL? The LOOP statement executes a sequence of statements within a PL/SQL code block multiple times. WHILE statement (PL/SQL) The…