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--删除外键alter table HelpTextInfo drop
constraint HelpTextInfo_Helptype_FK1
--增加外键alter
table HelpTextInfo add
constraint HelpTextInfo_Helptype_FK1 foreign
key (helptypeid) references
Helptype(helptypeid)
--不检查约束alter table HelpTextInfo nocheck constraint
HelpTextInfo_Helptype_FK1
--检查约束alter table HelpTextInfo check
constraint HelpTextInfo_Helptype_FK1
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