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Re: prepare don't work for optimize statement
Posted by: Øystein Grøvlen
Date: March 22, 2017 01:34AM

Hi,

Ref. https://dev.mysql.com/doc/refman/5.7/en/prepare.html:

"Parameter markers can be used only where data values should appear, not for SQL keywords, identifiers, and so forth."

To dynamically build SQL, you can build the statement in a string, and then prepare the resulting string. For example:

SET @tab = 't1';
SET @str = CONCAT('OPTIMIZE TABLE ', @tab);
PREPARE stmt FROM @str;

Øystein Grøvlen,
Senior Principal Software Engineer,
MySQL Group, Oracle,
Trondheim, Norway

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