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Question

我正在尝试让我的查询使用where子句查找从将特定列转换为varbinary和varchar的查询返回的信息。我必须进行转换，因为原始数据为十六进制。

我的查询：

SELECT ScriptID, RowOrder, cast(cast(ScriptData as varbinary(max)) as varchar(max)) AS Converted_SD
FROM Script_Data

典型的回报将是这样的：

--------------------------------------------------------------------------------------------
| ScriptID | RowOrder | Converted_SD                                                       |
--------------------------------------------------------------------------------------------
| 5006     | 1        | CVisScript {331 1 76 "\"1007\"" "Call.PeripheralVariable10" 284 "" |
| 5007     | 1        | CVisScript {332 1 76 "\"2007\"" "Call.PeripheralVariable10" 285 "" |
| 5009     | 1        | CVisScript {333 1 76 "\"1037\"" "Call.PeripheralVariable10" 286 "" |
| 5014     | 1        | CVisScript {334 1 76 "\"1407\"" "Call.PeripheralVariable10" 287 "" |
| 5015     | 1        | CVisScript {335 1 76 "\"1068\"" "Call.PeripheralVariable10" 288 "" |
| 5016     | 1        | CVisScript {336 1 76 "\"6578\"" "Call.PeripheralVariable10" 289 "" |
--------------------------------------------------------------------------------------------

我希望能够返回ScriptID，RowOrder，但仅返回Call.PeripheralVariable10及其前面的四位数字-Converted_SD列中没有其他内容。我已经尝试了很多子查询，但是我似乎无法将它们组合在一起。所以我设想它看起来像这样：

--------------------------------------------------------
| ScriptID | RowOrder | Converted_SD                   |
--------------------------------------------------------
| 5006     | 1        | 1007 Call.PeripheralVariable10 |
| 5007     | 1        | 2007 Call.PeripheralVariable10 |
| 5009     | 1        | 1037 Call.PeripheralVariable10 |
| 5014     | 1        | 1407 Call.PeripheralVariable10 |
| 5015     | 1        | 1068 Call.PeripheralVariable10 |
| 5016     | 1        | 6578 Call.PeripheralVariable10 |
--------------------------------------------------------

谢谢

Answer 1

如果使用的是SQL Server 2016，则可以使用string_split函数。

您可以在这里查看其用法（https://www.mssqltips.com/sqlservertip/4884/sql-server-2016-stringsplit-function/）

如果您知道格式将始终为带双引号的调用，则可以在双引号中使用此功能，如果您有多个带有replace的格式，则可以使用相同的定界符。

with cte as  (
select 5006 as ScriptID,  1 RowOrder, 'CVisScript {331 1 76 "\"1007\"" "Call.PeripheralVariable10" 284 ""' as Con_SD union all 
select 5007 as ScriptID,  1 RowOrder, 'CVisScript {332 1 76 "\"2007\"" "Call.PeripheralVariable10" 285 ""' as Con_SD union all 
select 5009 as ScriptID,  1 RowOrder, 'CVisScript {333 1 76 "\"1037\"" "Call.PeripheralVariable10" 286 ""' as Con_SD union all 
select 5014 as ScriptID,  1 RowOrder, 'CVisScript {334 1 76 "\"1407\"" "Call.PeripheralVariable10" 287 ""' as Con_SD union all 
select 5015 as ScriptID,  1 RowOrder, 'CVisScript {335 1 76 "\"1068\"" "Call.PeripheralVariable10" 288 ""' as Con_SD union all 
select 5016 as ScriptID,  1 RowOrder, 'CVisScript {336 1 76 "\"6578\"" "Call.PeripheralVariable10" 289   ' as Con_SD )


select c.ScriptID, c.RowOrder, tbl.n   from cte c  
cross apply  (select * from  string_split (con_SD, '"'))   tbl(n)
where tbl.n like '%call%';

输出：