文档解释ORA-25469:datanotspecifiedforalias:stringcolumnname:stringCause:Anattempttoevaluatewasmade,whichfailedbecausethecolumnvalueforthespecifiedaliasandcolumnname...

文档解释ORA-25465:variablenamenotspecifiedCause:Anattempttoevaluatewasmade,whichfailedbecauseoneofthevariablevaluesspecifiedhadaNULLvariablename.Action:Checkthelist...

文档解释ORA-25463:tablealiasnotspecifiedCause:Anattempttoevaluatewasmade,whichfailedbecauseoneofthetablevaluesspecifiedhadaNULLaliasname.Action:Checkthelistoftablev...

文档解释ORA-25468:columnnamenotspecifiedforalias:stringCause:Anattempttoevaluatewasmade,whichfailedbecauseoneofthecolumnvaluesforthespecifiedaliasnamehadaNULLcolumn...

文档解释ORA-25467:tablealiasnotspecifiedCause:Anattempttoevaluatewasmade,whichfailedbecauseoneofthecolumnvaluesspecifiedhadaNULLaliasname.Action:Checkthelistofcolum...

文档解释ORA-25462:evaluationcontextnotspecifiedCause:Anattempttoevaluatewasmade,whichfailedbecausetheevaluationcontextspecifiedwasnull.Action:Checktheevaluationcont...

文档解释ORA-25466:datanotspecifiedforvariablename:stringCause:Anattempttoevaluatewasmade,whichfailedbecausethevariablevalueforthespecifiedvariablenamehadNULLdata.Ac...

文档解释ORA-25464:ROWIDnotspecifiedfortablealias:stringCause:Anattempttoevaluatewasmade,whichfailedbecausethetablevalueforthespecifiedtablealiashadaNULLROWID.Action...

文档解释ORA-25461:rulesetnotspecifiedCause:Anattempttoevaluatewasmade,whichfailedbecausetherulesetnamespecifiedwasnull.Action:Checktherulesetname,andtryagainwithava...

文档解释ORA-12546:TNS:permissiondeniedCause:Userhasinsufficientprivilegestoperformtherequestedoperation.Action:Acquirenecessaryprivilegesandtryagain.此错误消息表明未通过TNS访问...

文档解释Errornumber:MY-012546;Symbol:ER_IB_MSG_721;SQLSTATE:HY000Message:Recoveryskipped,–innodb-read-onlyset!MY-012546;ER_IB_MSG_721;HY000错误错误说明MySQL的MY-0125...

TimeLimit:5000/1000MS(Java/Others)    MemoryLimit:32768/32768K(Java/Others)TotalSubmission(s):28562    AcceptedSubmissio...

http://acm.hdu.edu.cn/showproblem.php?pid=2546ProblemDescription电子科大本部食堂的饭卡有一种很诡异的设计，即在购买之前判断余额。如果购买一个商品之前，卡上的剩余金额大于或等于5元，就一定可以购买成功（即使购买后卡上余额为负），否则无法购买（即使金额足够）。...