小编m12*_*45y的帖子

我手边没有"解释计划".你能帮忙说出以下哪项更有效率吗？

选项1:

select ... 
    from VIEW_ABC 
    where STRING_COL = 'AA' 
       OR STRING_COL = 'BB' 
       OR STRING_COL = 'BB' 
       OR ...
       OR STRING_COL = 'ZZ'

选项2:

select ... 
    from VIEW_ABC 
    where STRING_COL IN ('AA','BB',...,'ZZ')