The Ultimate Guide to High Availability with MariaDB

Comments - SET Variable statement

8 years, 7 months ago Chris Isaksen
Re: SET Variable statement

you wouldn't happen to know the correct syntax for the following:

SET @dbname = 'name'; drop database if exists @dname;

First line works but second doesn't know what @dbname is.

 
8 years, 7 months ago Elena Stepanova
Re: SET Variable statement [Answer]

You need prepared statements to pull it off. Something like

SET @dbname = 'name';
SET @sql = CONCAT('drop database if exists ', @dbname);
PREPARE stmt FROM @sql;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
 
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