译:当你不确定循环体有多少次的时候,可以使用WHILE LOOP。因为在进入循环以前,WHILE的条件是先给的,因为可能循环体不止执行一次。 Let's take a look at an example: WHILE monthly_value <= 4000 LOOP monthly_value := daily_value * 31; END LOOP; In this example, the WHILE Loop would terminate on...
Third, inside the loop body, the counter was increased by one in each loop iteration. After five iterations, the condition was FALSE that caused the loop to terminate. 2) WHILE loop example terminated by EXIT WHEN statement The following example is the same as the one above except that it...
一、for 变量 in 开始数值...结束数值 loop end loop; 二、while 条件 loop end loop; loop的使用方式: 一、X := 100; LOOP X := X + 10; IF X > 1000 THEN EXIT; END IF END LOOP; Y := X; 二、 X := 100; LOOP X := X + 10; EXIT WHEN X > 1000; X := X + 10; END LO...
Oracle:模拟高考查分~一个简单的存储过程 如下===7.建立录取查询存储过程createor replaceprocedurepro_search_admit(stu_n in...procedurepro_search_grade(stu_n in number)aspro_bravarchar2(3); grade_sum number(4,1):=0 内连接,外连接,左连接,右连接,全连接,交叉连接 ...
This section provides a JavaScript tutorial example showing how to write a 'while' loop statement.© 2025 Dr. Herong Yang. All rights reserved.To help you understand how "while" loop statements work, I wrote the following the JavaScript tutorial example, For_Loop_Statements.html: ...
1. Awk While Loop Example: Create a string of a specific length $awk 'BEGIN { while (count++<50) string=string "x"; print string }' xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx The above example uses the ‘BEGIN { }’ special block that gets executed before anything else in an Aw...
A WHILE loop is exactly equivalent to a regular loop with an EXIT WHEN as the first statement. The condition is checked before the code in the loop is executed. If the condition is false, the code in the loop will never be executed. ...
Calculate circle Area in WHILE loop : While « PL SQL Statements « Oracle PL/SQL TutorialOracle PL/SQL Tutorial PL SQL Statements While SQL> SQL> set serveroutput on SQL> set echo on SQL> SQL> DECLARE 2 v_Radius NUMBER := 2; 3 BEGIN 4 WHILE v_Radius <=10 LOOP 5 DBMS_OUTPUT...
An infinite loop example: You now have the tools at your disposal to make cool little text based programs with Java. Congratulations! If you have any questions or need additional help, again you may use the form below to get in touch with me, and I'll be glad to help. ...
Bash Until Example 6. Waiting for the Machine to come up This example is used to wait till the machine comes up before doing a ssh to that machine. The until loop statement ends only when the ping gives the responses. $ cat mac_wait.sh ...