在LIMIT表达式中使用变量的存储过程？
让我们先创建一张桌子
mysql> create table LimitWithStoredProcedure -> ( -> Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, -> Name varchar(10) -> );
使用insert命令在表中插入一些记录。
查询如下
mysql> insert into LimitWithStoredProcedure(Name) values('John');
mysql> insert into LimitWithStoredProcedure(Name) values('Chris');
mysql> insert into LimitWithStoredProcedure(Name) values('Maxwell');
mysql> insert into LimitWithStoredProcedure(Name) values('Bob');
mysql> insert into LimitWithStoredProcedure(Name) values('David');
mysql> insert into LimitWithStoredProcedure(Name) values('Carol');
mysql> insert into LimitWithStoredProcedure(Name) values('James');
mysql> insert into LimitWithStoredProcedure(Name) values('Jace');
mysql> insert into LimitWithStoredProcedure(Name) values('Robert');
mysql> insert into LimitWithStoredProcedure(Name) values('Mike');
mysql> insert into LimitWithStoredProcedure(Name) values('Sam');
mysql> insert into LimitWithStoredProcedure(Name) values('Peter');
mysql> insert into LimitWithStoredProcedure(Name) values('Ramit');
mysql> insert into LimitWithStoredProcedure(Name) values('Tony');使用select语句显示表中的所有记录。
查询如下
mysql> select *from LimitWithStoredProcedure;
以下是输出
+----+---------+ | Id | Name | +----+---------+ | 1 | John | | 2 | Chris | | 3 | Maxwell | | 4 | Bob | | 5 | David | | 6 | Carol | | 7 | James | | 8 | Jace | | 9 | Robert | | 10 | Mike | | 11 | Sam | | 12 | Peter | | 13 | Ramit | | 14 | Tony | +----+---------+ 14 rows in set (0.00 sec)
这是您的存储过程，在LIMIT表达式中使用变量
mysql> DELIMITER //
mysql> CREATE PROCEDURE Sp_limit(IN beg INTEGER, IN end INTEGER )
-> BEGIN
-> PREPARE myStatement FROM
-> "select *from LimitWithStoredProcedure LIMIT ?,? ";
-> SET @beginning = beg;
-> SET @ending = end ;
-> EXECUTE myStatement USING @beginning, @ending;
-> DEALLOCATE PREPARE myStatement;
-> END //
mysql> DELIMITER ;借助CALL命令调用存储过程。
查询如下
mysql> call Sp_limit(4,7);
以下是输出
+----+--------+ | Id | Name | +----+--------+ | 5 | David | | 6 | Carol | | 7 | James | | 8 | Jace | | 9 | Robert | | 10 | Mike | | 11 | Sam | +----+--------+ 7 rows in set (0.00 sec)