sql - 如何从字符串中获取值

Question

如何从 A 列中像这样从查询 sql 中获取代码和子代码

格式 ：

[very long name | code | subcode] 

例如

[Pear | S01 | 10]
[Pineapple | S01 | 9]

PS：没有方括号，但管道分隔符是真实的

Answer 1

尝试这个; 演示 - 用表格更新

--declare @s varchar(50)='[Pineapple | S01 | 9]'

select substring(yourColumn,ind1 + 1,ind2-(ind1 +1)) code, 
       substring(yourColumn,ind2 + 1,len(yourColumn)-(ind2 + 1)) subcode
FROM ( 
  SELECT yourColumn, charindex('|',yourColumn,1) ind1, 
         charindex('|',yourColumn,charindex('|',yourColumn,1)+1) ind2 
  FROM yourTable
) X

Answer 2

假设您的代码始终是三个字母，您可以使用一些内置函数来帮助您：

WITH Data(Sample) AS
(
    SELECT 'Pear | S01 | 10' UNION
    SELECT 'Pineapple | S01 | 9'
)
SELECT
    SUBSTRING([Sample], CHARINDEX(' | ', [Sample], 1) + 3, 3) AS Code,
    REVERSE(SUBSTRING(REVERSE([Sample]), 1, 
        CHARINDEX(' | ', REVERSE([Sample]), 1) - 1)) AS SubCode
FROM
    data