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How can we access tables through MySQL stored procedures?
We can access one or all the tables from the MySQL stored procedure. Following is an example in which we created a stored procedure that will accept the name of the table as a parameter and after invoking it, will produce the result set with all the details from the table.
Example
mysql> Delimiter // mysql> Create procedure access(tablename varchar(30)) -> BEGIN -> SET @X := CONCAT('Select * from',' ',tablename); -> Prepare statement from @X; -> Execute statement; -> END// Query OK, 0 rows affected (0.16 sec)
Now invoke the procedure with the table name, we need to access, as its parameter.
mysql> Delimiter ; mysql> Call access('student_info'); +------+---------+----------+------------+ | id | Name | Address | Subject | +------+---------+----------+------------+ | 101 | YashPal | Amritsar | History | | 105 | Gaurav | Jaipur | Literature | | 125 | Raman | Shimla | Computers | +------+---------+----------+------------+ 3 rows in set (0.02 sec) Query OK, 0 rows affected (0.04 sec)
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