Tsql 需要在sql server中使用数组或任何建议创建函数的概念

下面是数据示例

ss-tt(1/21/2014  9:47:12 AM)->bb-tt-uu(02/07/14 11:09:59)

上述数据存储在表的一列中。现在我要做的是，拆分“date”，后面跟“sstt”，并将其粘贴到另一列中的同一行中

为此，我想在SQLServer中创建一个函数。在excel（VBA）中，使用数组创建函数非常容易，但在Sql server中，我不知道如何使用数组概念

下面是我在excel（VBA）中为相同计算创建的函数

    Sub readExcell1()

     Dim arr() As Variant
     Dim token As Variant
     Dim innertoken As Variant
     Dim first As String
     Dim second As String
     Dim ind As Integer


     arr = Range("D2:D849")
     Dim R As Long
    Dim C As Long
    rownum = 1
    colnum = 1
    For R = 1 To UBound(arr, 1) ' First array dimension is rows.
        'MsgBox "processing row " & R
        'MsgBox arr(R, 1)


        token = Split(arr(R, 1), "->")

        For i = LBound(token) To UBound(token)
            'MsgBox token(i)
            innertoken = Split(token(i), "(")
            first = innertoken(0)
            first = Trim(first)
            second = innertoken(1)
            If first = "payroll-apac" Then
                ind = 1 + R
                second = Replace(Trim(second), ")", "")
                Application.Range("H" & ind).Value = second
                GoTo Label1
            End If

        Next i
Label1:
    Next R


End Sub

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这应该是你想要的。显然，您可以单独处理前缀和分隔符，而不是使用列

declare @table table (
[value]       [nvarchar](max)
, [prefix]    [sysname]
, [separator] [sysname]
, [calculated] as substring([value]
             , len([prefix]) + 1
             , charindex([separator]
                         , [value]) - len([prefix]) - 1));
--
insert into @table
        ([value]
         , [prefix]
         , [separator])
values      (N'ss-tt(1/21/2014 9:47:12 AM)->bb-tt-uu(02/07/14 11:09:59)'
         , N'ss-tt('
         , N')');
--
select [value]
   , [calculated]
from   @table; 

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