Here is an example of using theWHILEloop statement in stored procedure: DELIMITER $$ DROP PROCEDURE IF EXISTS WhileLoopProc$$ CREATE PROCEDURE WhileLoopProc() BEGIN DECLARE x INT; DECLARE str VARCHAR(255); SET x = 1; SET str = ''; WHILE x <= 5 DO SET str = CONCAT(str,x,',');...
Here is an example of using the WHILE loop statement in stored procedure: DELIMITER $$ DROP PROCEDURE IF EXISTS WhileLoopProc$$ CREATE PROCEDURE WhileLoopProc() BEGIN DECLARE x INT; DECLARE str VARCHAR(255); SET x = 1; SET str = ''; WHILE x <= 5 DO SET str = CONCAT(str,x,','...
CREATE PROCEDURE `myLoopProcedure`(IN start INT, IN end INT) BEGIN DECLARE i INT DEFAULT start; WHILE i <= end DO -- 在此处添加需要循环执行的 SQL 语句 SET i = i + 1; END WHILE; END 1. 2. 3. 4. 5. 6. 7. 8. 在上述代码中,我们通过IN关键字定义了两个输入参数start和end,并使...
完事咱们尝试在存储过程中使用WHILE循环语句,看个实例: DELIMITER $$DROPPROCEDUREIFEXISTStest_mysql_while_loop$$CREATEPROCEDUREtest_mysql_while_loop()BEGINDECLARExINT;DECLAREstrVARCHAR(255);SETx=1;SETstr=''; WHILE x<=5DOSETstr=CONCAT(str,x,',');SETx=x+1;ENDWHILE;SELECTstr;END$$ DELIMITER ; ...
Here is an example of using while loop in stored procedure: DELIMITER $$ DROP PROCEDURE IF EXISTS WhileLoopProc$$ CREATE PROCEDURE WhileLoopProc() BEGIN DECLARE x INT; DECLARE str VARCHAR(255); SET x = 1; SET str = ''; WHILE x <= 5 DO SET str = CONCAT(str,x,',...
以下是在存储过程中使用WHILE循环语句的示例: DELIMITER $$ DROP PROCEDURE IF EXISTS test_mysql_while_loop$$ CREATE PROCEDURE test_mysql_while_loop() BEGIN DECLARE x INT; DECLARE str VARCHAR(255); SET x = 1; SET str = ''; WHILE x <= 5 DO ...
以下是在存储过程中使用WHILE循环语句的示例: DELIMITER $$DROPPROCEDUREIFEXISTStest_mysql_while_loop$$CREATEPROCEDUREtest_mysql_while_loop()BEGINDECLARExINT;DECLAREstrVARCHAR(255);SETx=1;SETstr='';WHILEx<=5DOSETstr=CONCAT(str,x,',');SETx=x+1;ENDWHILE;SELECTstr;END$$ ...
while do..表示while条件循环,while 表达式 do 执行语句 end while; loop...有点类似于continue,结束此次循环跳转到开头重新执行下一次,标签名称:loop 执行语句 end loop 标签名称; end // 整个存储过程大体结构如上,这是最基本的,还有更复杂的... 调用...
三种循环结构分别为while、repeat、loop。 while循环 语法 代码语言:javascript 代码运行次数:0 while表达式(如果表达式为true则执行业务逻辑,否则不执行,与repeat循环相反,repeat循环满足表达式退出循环,不满足一直执行)do业务逻辑 endwhile; 事例 代码语言:javascript ...
I have a sample stored procedure sp_get_employee_leave with: SELECT employee_leave_day FROM employees WHERE employee_id = param_employee_id; I want to know how can I call sp_get_employee_leave to get the data for all employees using a loop.. something like: For (i=0; i<=rows...