如何在列中选择NULL为空的行
问题描述:
以下声明未正确回复。我想在'ActualDateOfDespatch'列中选择那些为NULL的行。
从txfile中选择orderqty,其中ActualDateOfDespatch = NULL
The following statement is not responding correctly. I want to select those rows that are NULL in the column 'ActualDateOfDespatch'.
select orderqty from txfile where ActualDateOfDespatch=NULL
答
试试这个:
从txfile中选择orderqty,其中ActualDateOfDespatch为NULL
Try this:
select orderqty from txfile where ActualDateOfDespatch is NULL
select orderqty from txfile where ActualDateOfDespatch Is NULL
快乐编码!
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Happy Coding!
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试试这个: -
try this:-
select orderqty from txfile where ActualDateOfDespatch Is NULL