文档解释ORA-30086:intervalyear-monthresultnotallowedfordatetimesubtractionCause:Anattemptwasmadetospecifyintervalyeartomonthastheresultofdatetimesubtraction.Action:...

Giventwostrings S​1​​ and S​2​​, S=S​1​​−S​2​​ isdefinedtobetheremainingstringaftertakingallthecharactersin S​2​​ from&...

1050 StringSubtraction（20 分）Giventwostrings S​1​​ and S​2​​, S=S​1​​−S​2​​ isdefinedtobetheremainingstringaftertakingal...

GiventwostringsS~1~andS~2~,S=S~1~-S~2~isdefinedtobetheremainingstringaftertakingallthecharactersinS~2~fromS~1~.YourtaskissimplytocalculateS~1~-S~2~foranygivenst...

GiventwostringsS1 andS2,S=S1 -S2 isdefinedtobetheremainingstringaftertakingallthecharactersinS2 fromS1.YourtaskissimplytocalculateS1 -S...