Rows in columns

问题

I have this table:

Id Kind
1  MODEL
1  MOTOR
2  MODEL
2  MOTOR
3  MOTOR
4  MODEL

And I want to insert into anothe table:

IdModel IdMotor
1       1
1       2
1       3
2       1
2       2
2       3
4       1
4       2
4       3

I know how to do it with cursors, but it's indeed very slow. I've tried with union but it looks like today is not my best day!

I also know this can be done in SQL 2005 with pivot, but I have to do it with SQL Server 2000.

Any Transact-SQL guru out there with a good and quick query?

Thanks in advance!

回答1:

Looks like this will work:

INSERT Table2
SELECT model.id, motor.id
FROM
    Table model,
    Table motor
WHERE
    model.Kind = 'MODEL'
    and motor.Kind = 'MOTOR'

回答2:

INSERT INTO AnotherTable
SELECT  [IdModel]
        , [IdMotor]
FROM    (        
          SELECT  [IdModel] = ID
          FROM    ATable
          WHERE   Kind = 'MODEL'
        ) md
        CROSS APPLY
        (
          SELECT  [IdMotor] = ID
          FROM    ATable
          WHERE   Kind = 'MOTOR'
        ) mt          

来源：https://stackoverflow.com/questions/6370629/rows-in-columns