SQL 我想将负数设置为零，任何正数都应保持不变
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时间：2020-09-01 11:13:20 来源:igfitidea点击:
I want to set negative numbers in a view to zero and any positive should remain the same
提问by user829982
select field1, field2, Field3,
case when exists
(select field1
from tbl1
where field < 0) then 0 else field1 end as Field2
from tbl1
回答by CatchingMonkey
Assuming its T-SQL, its similar to a question from earlier but here goes:
假设它的 T-SQL，它类似于之前的一个问题，但这里是：
SELECT [your fields here] ,
CASE WHEN [COLUMN_NAME] <= 0 THEN 0 ELSE [COLUMN_NAME] END AS [NEW_COL_NAME]
FROM [TABLE_NAME]
回答by Utoxin
Use this snippet in the query you create the view from:
在您创建视图的查询中使用此代码段：
IF(field < 0, 0, field)
回答by Chandu
Try this:
尝试这个：
SELECT field1,
field2,
Field3,
CASE
WHEN field < 0 THEN 0
ELSE field1
END as Field2
FROM tbl1
回答by pratik garg
you can do like follow-
你可以像跟随-
select
case
when field1<0 then 0
else field1
end as field1
from tbl
