怎么从一张表中搜索错误数据

如何从一张表中搜索异常数据?

有几张数据表label1,有a、b、c、d、e、f这6个字段,想从其中的b、c、d、e四个字段的值中找出大于1000的,语句该如何写?



select * from label1

where a>1000 or b>1000 or c>1000 or d>1000 or e>1000 or f>1000



SQL code


select * from label1
where b > 1000 or c > 1000 or d > 1000 or e > 1000

UNION ALL 

select * from label2
where b > 1000 or c > 1000 or d > 1000 or e > 1000

UNION ALL


select * from label2
where b > 1000 or c > 1000 or d > 1000 or e > 1000


SQL code
SELECT * FROM 
lable1
WHERE a>1000 or b>1000 OR c>1000 OR d>1000 OR e>1000 OR f>1000;


详细说明,是同一服务器中?

select * from label1
where b>1000 or c>1000 or d>1000 or e>1000 or f>1000

探讨

SQL code

select * from label1
where b > 1000 or c > 1000 or d > 1000 or e > 1000

UNION ALL

select * from label2
where b > 1000 or c > 1000 or d > 1000 or e > 1000

UNION ALL


select * from labe……


SQL code

SELECT * FROM 
lable1
WHERE b>1000 OR c>1000 OR d>1000 OR e>1000;


                        
      
      
                    
怎么从一张表中搜索错误数据

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