下文介绍的MySql存储过程是带参数的存储过程（动态执行SQL语句），该MySql存储过程是根据用户输入的条件和排序方式查询用户的信息，排序条件可以没有调用方式：
call GetUsersDynamic('age<=30','');
/********动态查询用户的信息********/ CREATE PROCEDURE GetUsersDynamic(WhereCondition varchar(500),OrderByExpress varchar(100)) begin declare stmt varchar(2000); if LENGTH(OrderbyExpress)>0 then begin set @sqlstr=concat('select id,name,password,age,getdate(adddate) as AddDate from users where ',WhereCondition,' order by ',OrderByExpress); end; else begin set @sqlstr=concat('select id,name,password,age,getdate(adddate) as AddDate from users where ',WhereCondition); end; end if; prepare stmt from @sqlstr; execute stmt; end;
getdate()是一个自定义的函数，作用是返回日期的短格式
CREATE DEFINER=`root`@`localhost` FUNCTION `getdate`($date datetime) RETURNS varchar(50) CHARSET latin1 return date_format($date,'%Y-%m-%d');
动态插入数据的MySql存储过程，（注意四个单引号表示一个一引号）：
CREATE DEFINER=`root`@`localhost` PROCEDURE `InsertUser`(in name2 varchar(50),in password2 varchar(32),in age2 int,in adddate2 datetime) begin DECLARE stmt varchar(2000); set @sqlstr=concat('insert into users(name,password,age,adddate) values('); set @sqlstr=concat(@sqlstr,'''',name2,'''',',','''',password2,'''',',',age2,',','''',adddate2,'''',')'); prepare stmt from @sqlstr; execute stmt; end;