删除空余行: Dim LastRow As Long, r As Long LastRow = ActiveSheet.UsedRange.Rows.Count LastRow = LastRow + ActiveSheet.UsedRange.Row -1 For r = LastRow To 1 Step -1 If WorksheetFunction.CountA(Rows(r)) = 0 Then Rows(r).Delete Next r 删除空余列: Dim LastColumn
一、运算符算术运算符:+ – * / 可以在select 语句中使用连接运算符:|| select deptno|| dname from dept; 比较运算符:> >= = != < <= like between is null in逻辑运算符:not and or 集合运算符: intersect ,union, union all, minus 要求:对应集合的列数和数据类型相同 查询中不能包含long 列 列的标签是第一个集合的标签 使