Example of a WHILE loop that never executes. : While « PL SQL Statements « Oracle PL/SQL Tutorial

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Oracle PL/SQL Tutorial » PL SQL Statements » While 
22.7.5.Example of a WHILE loop that never executes.
DECLARE
      v_Calc NUMBER := 0;
BEGIN
     WHILE v_Calc >= 10 LOOP
          v_Calc := v_Calc + 1;
          DBMS_OUTPUT.PUT_LINE('The value of v_Calc is ' || v_Calc);
     END LOOP;
END;
/


Corrected WHILE loop that executes.


SQL> DECLARE
  2        v_Calc NUMBER := 0;
  3  BEGIN
  4       WHILE v_Calc <= 10 LOOP
  5            v_Calc := v_Calc + 1;
  6            DBMS_OUTPUT.PUT_LINE('The value of v_Calc is ' || v_Calc);
  7       END LOOP;
  8  END;
  9  /
The value of v_Calc is 1
The value of v_Calc is 2
The value of v_Calc is 3
The value of v_Calc is 4
The value of v_Calc is 5
The value of v_Calc is 6
The value of v_Calc is 7
The value of v_Calc is 8
The value of v_Calc is 9
The value of v_Calc is 10
The value of v_Calc is 11

PL/SQL procedure successfully completed.

SQL>
22.7.While
22.7.1.WHILE Loops
22.7.2.While loop
22.7.3.WHILE LOOP with counter
22.7.4.Calculate circle Area in WHILE loop
22.7.5.Example of a WHILE loop that never executes.
22.7.6.The EXIT and EXIT WHEN Statements
22.7.7.EXIT a WHILE LOOP with exit command
22.7.8.While Counter is initialized to NULL
22.7.9.Nested WHILE Loop
22.7.10.Use WHILE Loop to insert data to table
22.7.11.A complete example of using the cursor variable using a WHILE LOOP
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