"Problem" gelöst
UPDATE `pm_head` FORCE KEY (`PRIMARY`) SET `readen` = 1 WHERE `pmid` BETWEEN 1 AND 5 && `userid` = 1
@ Mods ... löschen ... sorry
UPDATE `pm_head` FORCE KEY (`PRIMARY`) SET `readen` = 1 WHERE `pmid` BETWEEN 1 AND 5 && `userid` = 1
@ Mods ... löschen ... sorry
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