Mysql :
SELECT (@i:=@i+1) AS ind ,字段 FROM 表名 别名, (SELECT @i:=0) t WHERE `IsDeleted` = 0;
Oracle:
本就有rownum。可直接用:SELECT rownum,字段 FROM 表名;
SqlServer:
SELECT ROW_NUMBER() OVER(ORDER BY ID) ROWNU,字段 FROM 表名;
Mysql :
SELECT (@i:=@i+1) AS ind ,字段 FROM 表名 别名, (SELECT @i:=0) t WHERE `IsDeleted` = 0;
Oracle:
本就有rownum。可直接用:SELECT rownum,字段 FROM 表名;
SqlServer:
SELECT ROW_NUMBER() OVER(ORDER BY ID) ROWNU,字段 FROM 表名;