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MySQL: Using variable with create and insert

Posted on 2014-01-24
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Last Modified: 2014-01-26
How can I use a variable with "create" and "insert" statements?

This does not work:
SET @now := (SELECT DATE_FORMAT(NOW(),'tbl_%Y_%m_%d_%H_%i'));
CREATE TABLE (SELECT @now) LIKE tbl;
INSERT (SELECT @now) SELECT * FROM tbl;

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Question by:hankknight
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Chris Stanyon earned 2000 total points
ID: 39807402
You'll need to CONCAT the variable into a statement and then execute that:

SET @newTable := (SELECT DATE_FORMAT(NOW(),'tbl_%Y_%m_%d_%H_%i'));

SET @sql := CONCAT('CREATE TABLE ', @newTable,' LIKE tbl');
PREPARE stmt FROM @sql; 
EXECUTE stmt;

SET @sql := CONCAT('INSERT INTO ', @newTable, ' SELECT * FROM tbl');
PREPARE stmt FROM @sql; 
EXECUTE stmt;

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