如何将一列拆分为多个值

Question

表格1

Value (Always 3 Digit)

100x200x300
200x400x500
...
...

我想从值列制作3列

预期产量

val1 val2 val3

100 200 300
200 400 500
...
...

需要查询帮助

Answer 1

这利用了PARSENAME而不是SUBSTRING。

SELECT
   PARSENAME(Value2, 3) AS val1,
   PARSENAME(Value2, 2) AS val2,
   PARSENAME(Value2, 1) AS val3
FROM
    (
    SELECT
        REPLACE(Value, 'x', '.') AS Value2
    FROM
        MyTable
    ) T;

这段代码

• 允许不同的分量值长度
• 假设x始终是分隔符
• 始终假设3个组成

Answer 2

SELECT SUBSTRING([VALUE],1,3) AS val1,
       SUBSTRING([VALUE],5,3) AS val2, 
       SUBSTRING([VALUE],9,3) AS val3
  FROM TABLE1