如何在sql中写条件

Question

我需要通过在sql server 2008中使用if条件来检查@SupplierCategory并且@SupplierCode不等于null

e.g

if (@SupplierCategory != null && @SupplierCode != null )
    begin
    end
else
    begin
    end

怎么做...谢谢

Answer 1

if (@SupplierCategory is not null AND @SupplierCode is not null )
    begin
    end
else
    begin
    end