Sqlserver 插入一条记录时，不重复插入的办法

阻止插入一条记录时重复插入html 代码 insert   into   [ Catchpage ] . [ dbo ] . [ gdlmo_yq ] ( [ title ] , [ PageUrl ] ) select   ' aaaa ' , ' http://10.4.19.252 '   where   not   exists ( select   *   from   [ Catchp

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