由于您使用的是 SQL Server 2000，它没有PIVOT函数，因此您必须使用聚合函数和CASE语句来复制它。与此类似：
select employeeid,
sum(case when DatePart(Month, EffectiveDate) = 1 then Salary end) as Jan,
sum(case when DatePart(Month, EffectiveDate) = 2 then Salary end) as Feb,
sum(case when DatePart(Month, EffectiveDate) = 3 then Salary end) as Mar,
sum(case when DatePart(Month, EffectiveDate) = 4 then Salary end) as Apr,
sum(case when DatePart(Month, EffectiveDate) = 5 then Salary end) as May,
sum(case when DatePart(Month, EffectiveDate) = 6 then Salary end) as Jun,
sum(case when DatePart(Month, EffectiveDate) = 7 then Salary end) as Jul,
sum(case when DatePart(Month, EffectiveDate) = 8 then Salary end) as Aug,
sum(case when DatePart(Month, EffectiveDate) = 9 then Salary end) as Sep,
sum(case when DatePart(Month, EffectiveDate) = 10 then Salary end) as Oct,
sum(case when DatePart(Month, EffectiveDate) = 11 then Salary end) as Nov,
sum(case when DatePart(Month, EffectiveDate) = 12 then Salary end) as Dec
from yourtable
group by employeeid
请参阅带有演示的 SQL Fiddle
编辑，根据您上面的评论将价值从一个月转移到下一个月，这里有一个可能对您有用的解决方案。
declare @query as nvarchar(max) = '',
@rowcount as int = 1,
@pivotrow as int,
@currentMonthSalary as int = 0,
@priorMonthSalary as int = 0,
@employeeid int
select distinct effectivedate
into #colspivot
from yourtable
while @rowcount <= 12 -- loop thru each month
begin
set @pivotrow = (select top 1 datepart(month, effectivedate)
from #colspivot
order by datepart(month, effectivedate))
select @currentMonthSalary = salary, @employeeid = EmployeeID
from yourtable
where datepart(month, effectivedate) = @pivotrow
if @pivotrow = @rowcount
begin
insert into FinalData (employeeid, effectivemonth, salary)
select @employeeid, cast(DateName(month, DateAdd(month, @pivotrow, 0) -1) as varchar(3)), @currentMonthSalary
set @query = @query + ', sum(case when effectivemonth = ''' + cast(DateName(month, DateAdd(month, @pivotrow, 0) -1) as varchar(3)) + '''
then ' + cast(@currentMonthSalary as varchar(10)) + ' end) as '+ cast(DateName(month, DateAdd(month, @pivotrow, 0) -1) as varchar(3))
delete from #colsPivot where datepart(month, effectivedate) = @pivotRow
set @priorMonthSalary = @currentMonthSalary
end
else
begin
insert into FinalData (employeeid, effectivemonth, salary)
select @employeeid, cast(DateName(month, DateAdd(month, @rowcount, 0) -1) as varchar(3)), @priorMonthSalary
set @query = @query + ', sum(case when effectivemonth = ''' + cast(DateName(month, DateAdd(month, @rowcount, 0) -1) as varchar(3)) + '''
then ' + cast(@priorMonthSalary as varchar(10)) + ' end) as '+cast(DateName(month, DateAdd(month, @rowcount, 0) -1) as varchar(3))
end
if @rowcount <= 12
set @rowcount = @rowcount + 1
end
set @query = 'select employeeid '+ @query
+ ' from FinalData group by employeeid;'
exec(@query)
请参阅SQL Fiddle with Demo。我创建了一个新表FinalData来存储每个月的数据，同时循环创建 sql 语句。