我有下表,我想根据业务范围仅选择上个月.
这些原始表:
fk_month fk_business_area
201706 8
201707 25
201707 27
201707 9
201707 8
201707 28
201707 26
201708 9
选择后,我想要这个结果:
fk_month fk_business_area
201707 25
201707 27
201707 8
201707 28
201707 26
201708 9
问候.