摘要：
Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->IFEXISTS(SELECT1FROMsysobjectsA,syscolumnsBWHEREA.id=B.idANDA.[name]='sys_Module'ANDB.[name]='M_ShowType')ALTERTABLEsys_ModuleDROPCOLUMNM_ShowTypealtertablesys_ModuleaddM_ShowTypeint 阅读全文