使用SQL从列中获取唯一编号

Question

您好

我想通过使用ProecssInstanceName列中的SQL查询来获取唯一编号。快照附在下面。

现在我正在使用此查询来获取以下结果。查询是

select c.StreamName AS Category,ProcessInstanceAppianID as jobId,a.ProcessInstanceName,a.ProcessInstanceTargetDate AS TargetDate,a.ProcessInstanceDescription as TaskDescription,b.Name as department
from InternalUseOnly..ProcessInstance a 
join InternalUseOnly..Departments b on b.KeyDepartment=a.KeyDepartmentEntered AND b.updoperation <2
join InternalUseOnly..ProcessStream c on c.KeyProcessStream=a.KeyProcessStream and c.updoperation <2
where ProcessInstanceCompleted is null
and a.KeyProcessStream in 
(330) and a.updoperation <2

提前致谢。

Answer 1

你想要这个吗？

select c.StreamName AS Category,ProcessInstanceAppianID as jobId,a.ProcessInstanceName,a.ProcessInstanceTargetDate AS TargetDate,a.ProcessInstanceDescription as TaskDescription,b.Name as department,
SUBSTRING(ProcessInstanceName,NULLIF(PATINDEX('%[0-9][0-9][0-9][0-9][0-9][0-9][0-9]%',ProcessInstanceName),0),7) as code
from InternalUseOnly..ProcessInstance a 
join InternalUseOnly..Departments b on b.KeyDepartment=a.KeyDepartmentEntered AND b.updoperation <2
join InternalUseOnly..ProcessStream c on c.KeyProcessStream=a.KeyProcessStream and c.updoperation <2
where ProcessInstanceCompleted is null
and a.KeyProcessStream in 
(330) and a.updoperation <2

编辑： 我做了这个：

SUBSTRING(ProcessInstanceName, PatIndex('%[0-9]%', ProcessInstanceName), (LEN(ProcessInstanceName) - (PatIndex('%[0-9]%', ProcessInstanceName) - 1) - (PatIndex('%[0-9]%', REVERSE(ProcessInstanceName)) - 1)) + 1)

但我认为这是疯狂的，更好的是用C＃解析数字或者你使用的是什么。

Answer 2

我建议使用string functions。 REPLACE“Webwatcher重新过滤”空白的网址，并使用LEFT和PATINDEX一起获取ID并转换为数字。