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2025-01-19 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Database >
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How to implement multi-conditional query in SQL? in view of this problem, this article introduces the corresponding analysis and solution in detail, hoping to help more partners who want to solve this problem to find a more simple and feasible method.
The first way to write is
If (@ addDate is not null) and (@ name'') select * from table where addDate = @ addDate and name = @ nameelse if (@ addDate is not null) and (@ name =') select * from table where addDate = @ addDate else if (@ addDate is null) and (@ name'') select * from table where and name = @ nameelse if (@ addDate is null) and (@ name =') select * from table
The second is the dynamic composition of SQL, which is executed through exec. I will not write it.
Yesterday I thought of a way
Select * from table where (addDate = @ addDate or @ addDate is null) and (name = @ name or @ name ='') this is the answer to the question about how to implement multi-conditional query in SQL. I hope the above content can be of some help to you. If you still have a lot of doubts to be solved, you can follow the industry information channel for more related knowledge.
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