Stored procedure using variable in LIMIT expression?

MySQLMySQLi Database

Let us firs create a table

mysql> create table LimitWithStoredProcedure
   -> (
   -> Id int NOT NULL AUTO_INCREMENT PRIMARY KEY,
   -> Name varchar(10)
   -> );
Query OK, 0 rows affected (0.47 sec)

Insert some records in the table using insert command.

The query is as follows

mysql> insert into LimitWithStoredProcedure(Name) values('John');
Query OK, 1 row affected (0.15 sec)
mysql> insert into LimitWithStoredProcedure(Name) values('Chris');
Query OK, 1 row affected (0.15 sec)
mysql> insert into LimitWithStoredProcedure(Name) values('Maxwell');
Query OK, 1 row affected (0.28 sec)
mysql> insert into LimitWithStoredProcedure(Name) values('Bob');
Query OK, 1 row affected (0.24 sec)
mysql> insert into LimitWithStoredProcedure(Name) values('David');
Query OK, 1 row affected (0.20 sec)
mysql> insert into LimitWithStoredProcedure(Name) values('Carol');
Query OK, 1 row affected (0.18 sec)
mysql> insert into LimitWithStoredProcedure(Name) values('James');
Query OK, 1 row affected (0.29 sec)
mysql> insert into LimitWithStoredProcedure(Name) values('Jace');
Query OK, 1 row affected (0.13 sec)
mysql> insert into LimitWithStoredProcedure(Name) values('Robert');
Query OK, 1 row affected (0.20 sec)
mysql> insert into LimitWithStoredProcedure(Name) values('Mike');
Query OK, 1 row affected (0.07 sec)
mysql> insert into LimitWithStoredProcedure(Name) values('Sam');
Query OK, 1 row affected (0.25 sec)
mysql> insert into LimitWithStoredProcedure(Name) values('Peter');
Query OK, 1 row affected (0.14 sec)
mysql> insert into LimitWithStoredProcedure(Name) values('Ramit');
Query OK, 1 row affected (0.18 sec)
mysql> insert into LimitWithStoredProcedure(Name) values('Tony');
Query OK, 1 row affected (0.16 sec)

Display all records from the table using select statement.

The query is as follows

mysql> select *from LimitWithStoredProcedure;

The following is the output

+----+---------+
| 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)

Here is your stored procedure, using variable in LIMIT expression

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 //
Query OK, 0 rows affected (0.25 sec)
mysql> DELIMITER ;

Call the stored procedure with the help of CALL command.

The query is as follows

mysql> call Sp_limit(4,7);

The following is the output

+----+--------+
| Id | Name   |
+----+--------+
| 5  | David  |
| 6  | Carol  |
| 7  | James  |
| 8  | Jace   |
| 9  | Robert |
| 10 | Mike   |
| 11 | Sam    |
+----+--------+
7 rows in set (0.00 sec)
Query OK, 0 rows affected (0.03 sec)
raja
Published on 29-Mar-2019 10:14:35
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