如何将字符串拆分为视图的列？ [复制]

我有一个专栏（full_location_id）在包含字符串的表中由“-”分隔，我需要在视图中将其分成 4 列（Test_SplitColumn）。并非每条记录full_location_id包含相同长度的 ids。有些可能具有 A1-BF-35-B1 等 id，而另一些可能只有 AR-B3。我不确定这样做的最佳方法。我能够检索第一列，但到目前为止还不能检索其他列。

CREATE VIEW [dbo].[Test_SplitColumn]
AS
select p.name, location.aisle_id, location.full_location_id, SUBSTRING(location.full_location_id, 0,charindex('-', location.full_location_id )) as Aisle,
SUBSTRING(location.full_location_id, charindex('-', location.full_location_id ) + 1, charindex('-', location.full_location_id, LEN(SUBSTRING(location.full_location_id, 0,charindex('-', location.full_location_id ))) )) as ShelvingUnit
from location 
inner join product p on p.id = location.product_id
GO

任何帮助或指导将不胜感激。

这是一个快速、简单的方法：

DECLARE @T TABLE(full_location_id varchar(100));

INSERT INTO @T 
VALUES  ('A1-BF-35-B1'),
        ('AR-B3');

WITH CTE AS
(
    SELECT  full_location_id,
            LEN(full_location_id)-LEN(REPLACE(full_location_id,'-','')) N
    FROM @T
)
SELECT  full_location_id,
        PARSENAME(REPLACE(full_location_id,'-','.'),N+1),
        PARSENAME(REPLACE(full_location_id,'-','.'),N),
        PARSENAME(REPLACE(full_location_id,'-','.'),N-1),
        PARSENAME(REPLACE(full_location_id,'-','.'),N-2)
FROM CTE

Results:

╔══════════════════╦══════╦══════╦══════╦══════╗
║ full_location_id ║ Col1 ║ Col2 ║ Col3 ║ Col4 ║
╠══════════════════╬══════╬══════╬══════╬══════╣
║ A1-BF-35-B1      ║ A1   ║ BF   ║ 35   ║ B1   ║
║ AR-B3            ║ AR   ║ B3   ║ NULL ║ NULL ║
╚══════════════════╩══════╩══════╩══════╩══════╝

And 这是一个 sqlfiddle http://sqlfiddle.com/#!3/d341a/1与演示。