Select data from “show tables” MySQL query

Question

Is it possible to select from show tables in MySQL?

SELECT * FROM (SHOW TABLES) AS `my_tables`

Something along these lines, th

Answer 1

You can create a stored procedure and put the table names in a cursor, then loop through your table names to show the data.

Getting started with stored procedure: http://www.mysqltutorial.org/getting-started-with-mysql-stored-procedures.aspx

Creating a cursor: http://www.mysqltutorial.org/mysql-cursor/

For example,

CREATE PROCEDURE `ShowFromTables`()
BEGIN

DECLARE v_finished INTEGER DEFAULT 0;
DECLARE c_table varchar(100) DEFAULT "";

DECLARE table_cursor CURSOR FOR 
SELECT table_name FROM information_schema.tables WHERE table_name like 'wp_1%';

DECLARE CONTINUE HANDLER 
    FOR NOT FOUND SET v_finished = 1;

OPEN table_cursor;

get_data: LOOP

FETCH table_cursor INTO c_table;

IF v_finished = 1 THEN 
LEAVE get_data;
END IF;

SET @s=CONCAT("SELECT * FROM ",c_table,";");

PREPARE stmt FROM @s;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;

END LOOP get_data;

CLOSE table_cursor;

END

Then call the stored procedure:

CALL ShowFromTables();