Question

我有一个名为TBL_WorkOrder的表格如下：

+----+------------+----------------+  
| Id | SystemCode | WorkOrderTitle |  
+----+------------+----------------+  
|  1 | C001       | Title 1        |  
|  2 | C002       | Title 2        |  
|  3 | C003       | Title 3        |  
+----+------------+----------------+

和另一个名为TBL_WorkGroup的表

+----+---------------+
| Id | WorkGroupName |
+----+---------------+
|  1 | WorkGroup1    |
|  2 | WorkGroup2    |
|  3 | WorkGroup3    |
+----+---------------+

每个工单可以包含不同的工作组，如下所示（TBL_WorkOrderGroup）

+----+-------------+-------------+
| Id | WorkOrderId | WorkGroupId |
+----+-------------+-------------+
|  1 |           1 |           1 |
|  2 |           1 |           3 |
|  3 |           2 |           1 |
+----+-------------+-------------+

问题是我向存储过程发送了一个类似'1,3'的varchar字符串。使用表值函数将此varchar更改为表。我想获得包含'1'和'3'作为工作组的工单。

在这种情况下我该怎么做？

Answer 1

DECLARE @String VARCHAR(100) = '1,3'
;WITH Split AS
(
  SELECT SUBSTRING(@String,0,CHARINDEX(',',@String)) SplitStr,SUBSTRING(@String,CHARINDEX(',',@String)+1,LEN(@String)) RemainStr
  UNION ALL
  SELECT CASE WHEN CHARINDEX(',',RemainStr) = 0 THEN RemainStr ELSE SUBSTRING(RemainStr,0,CHARINDEX(',',RemainStr)) END,
         CASE WHEN CHARINDEX(',',RemainStr) = 0 THEN '' ELSE SUBSTRING(RemainStr,CHARINDEX(',',RemainStr)+1,LEN(RemainStr)) END
  FROM Split
  WHERE ISNULL(RemainStr,'') <> ''
)
SELECT SplitStr FROM Split

如何获取子表记录表值存在于表值函数的结果中

1 个答案: