SQL错误提示

系统:PHP 5.3.3 (Linux)
sql错误:SELECT COUNT(1) FROM sky_job where id in() You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ')' at line 1
/home/www/html/web/skymvc/class/cls_pdo.php:239行,调用方法:query
/home/www/html/web/skymvc/class/cls_pdo.php:216行,调用方法:getOne
/home/www/html/web/skymvc/class/cls_pdo.php:163行,调用方法:getCount
/home/www/html/web/skymvc/class/cls_model.php:114行,调用方法:SELECT
/home/www/html/web/source/index/sqjl.ctrl.php:45行,调用方法:select
/home/www/html/web/skymvc/skymvc.php:201行,调用方法:onDefault
/home/www/html/web/index.php:54行,调用方法:require
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