我想知道在编写用于MS Access的SQL代码时如何或是否可以在CASE语句中使用IIF语句。我正在尝试根据其他列的输入填充单个列。
我已经通过编写以下代码并研究了如何在MS Access中使用CASE语句来进行尝试。
RE020_STATUS:
CASE
WHEN IIf([03_RE]![RE060_ACTUAL] Is Null,"Pending RE060",IIf([03_RE]![RE097_ACTUAL] Is Null,"Pending RE097",IIf([04_CI001_CI091]![CI050_ACTUAL] Is Null,"Pending CI050",IIf([04_CI001_CI091]![CI081_ACTUAL] Is Null,"Pending CI081",IIf([01_JobDetails_JI_CL]![CL001_ACTUAL] Is Null,"Pending CL001",IIf([01_JobDetails_JI_CL]![CL100_ACTUAL] Is Null,"Pending CL100",IIf([05_CI093_CI164]![CI139_ACTUAL] Is Null,"Pending CI139",IIf([05_CI093_CI164]![CI140_ACTUAL] Is Null,"Pending CI140","Pending CL101"))))))))
WHEN IIf([03_RE]![RE020_FORECAST] Is Null,IIf([01_JobDetails_JI_CL]![CL001_ACTUAL] Is Null,"Pending CL001",IIf([01_JobDetails_JI_CL]![CL100_ACTUAL] Is Null,"Pending CL100",IIf([05_CI093_CI164]![CI139_ACTUAL] Is Null,"Pending CI139",IIf([05_CI093_CI164]![CI140_ACTUAL] Is Null,"Pending CI140","Pending CL101")))))
END
到目前为止，我所得到的只是关于代码编写方式的错误，我缺少操作数，表达式或语句。