ORA-00988: missing or invalid password(s)

创建账号或修改账号密码时有可能会遇到ORA-00988:missingorinvalidpassword(s)，那么什么情况下会遇到这种错误呢？一般是因为密码的设置不符合命名规范：1：密码是关键字，但是没有用双引号包裹起来。2：密码以数字开头，但是没有用双引号包裹起来3：密码包含特殊字符，并且没有用双引号包裹起来。官方文档关于passwor的介绍如下：TheBYpasswordclauseletsyoucreatesalocaluserandindicatesthattheusermustspecifypasswordtologontothedatabase.Passwordscancontainonlysingle-bytecharactersfromyourdatabasecharactersetregardlessofwhetherthecharactersetalsocontainsmultibytecharacters.Passwordsmustfollowtherulesdescribedinthesection"SchemaObjectNamingRules",unlessyouareusingtheOracleDatabasepasswordcomplexityverificationroutine.Thatroutinerequiresamorecomplexcombinationofcharactersthanthenormalnamingrulespermit.YouimplementthisroutinewiththeUTLPWDMG.SQLscript,whichisfurtherdescribedinOracleDatabaseSecurityGuide.而SchemaObjectNamingRules就包含下面这些规则。MoreusernamesthanpasswordswerespecifiedinaGRANTstatement.AvalidpasswordmustbespecifiedforeachusernamelistedintheGRANTstatement.ThiserrorindicatesthatyouareviolatingtheobjectnamesandqualifiersforOracle.Thefollowingrulesapplywhennamingobjects:1)Namesmustbefrom1-30characterslongwiththeexceptions:-Namesofdatabasearelimitedto8characters.-Namesofdatabaselinkscanbeaslongas128characters.2)Namescannotcontainquotationmarks.3)Namesarenotcase-sensitive.（注意,这条只适用于ORACLE10g）4)Anamemustbeginwithandcontainanalphanumericcharacterfromyourdatabasecharactersetunlesssurroundedbydoublequotationmarks.5)Oraclestronglydiscouragesusing$and#.下面我们通过几个案例来了解一下上面的内容吧1：密码是关键字，但是没有用双引号。

SQL>createusertestidentifiedbytable;

createusertestidentifiedbytable

*

ERRORatline1:

ORA-00988:missingorinvalidpassword(s)

SQL>createusertestidentifiedby'table';

createusertestidentifiedby'table'

*

ERRORatline1:

ORA-00988:missingorinvalidpassword(s)

SQL>createusertestidentifiedby"table";

Usercreated.

2：密码以数字开头，但是没有使用双引号

SQL>createusertestidentifiedby123456;

createusertestidentifiedby123456

*

ERRORatline1:

ORA-00988:missingorinvalidpassword(s)

SQL>createusertestidentifiedby'123456';

createusertestidentifiedby'123456'

*

ERRORatline1:

ORA-00988:missingorinvalidpassword(s)

SQL>createusertestidentifiedby"123456";

Usercreated.

3：密码包含特殊字符，并且没有用双引号。

SQL>dropusertest;

Userdropped.

SQL>createusertestidentifiedbyk*123$6;

createusertestidentifiedbyk*123$6

*

ERRORatline1:

ORA-00922:missingorinvalidoption

SQL>createusertestidentifiedby'k*123$6';

createusertestidentifiedby'k*123$6'

*

ERRORatline1:

ORA-00988:missingorinvalidpassword(s)

SQL>createusertestidentifiedby"k*123$6";

Usercreated.