sql - 列と行の値を分割する方法

Question

SQL Server 2005 の使用

id value1 value2

001 200 300
002 200x300 400x200
003 300x200 500x600
004 100 200
.....

値列を2列に分割したい

If value1 row 200x300 then it should display value1 - 200 and value2 - 300
if value2 row 400x200 then it should display value1 - 400 and value2 - 200

期待される出力

id value1 value2

001 200 300
002 200 300
002 400 200
003 300 200
003 500 600
004 100 200
....

これを行う方法。

SQL クエリのヘルプが必要

Answer 1

チェックしてください：

DECLARE @table as TABLE(id nvarchar(10), Value1 Nvarchar(50), Value2 nvarchar(50))
insert into @table values
('001', '200', '300'),
('002', '200x300', '400x200'),
('003', '300x200', '500x600'),
('004', '100', '200')

select id, Value1, Value2 From @table
select id, Value1, Value2 From @table where CHARINDEX('x', Value2)=0
union all
select id, SUBSTRING(Value1, 1, CHARINDEX('x', Value1)-1) Value1, SUBSTRING(Value1, CHARINDEX('x', Value1)+1, LEN(Value1)) Value2  From @table where CHARINDEX('x', Value2)>0
union all
select id, SUBSTRING(Value2, 1, CHARINDEX('x', Value2)-1) Value1, SUBSTRING(Value2, CHARINDEX('x', Value2)+1, LEN(Value1)) Value2  From @table where CHARINDEX('x', Value2)>0
order by id