如何检索在存储过程和 SqlCommand 中创建的#temptable 数据？

Question

我在这里阅读了很多关于如何重用 SqlCommand 的答案，但其中 none 是这个问题的答案。基本上我有创建 #temptable.

的存储过程

像这样：

CREATE PROCEDURE [dbo].[ProjectPriorInterestIncome]
    @selectedDate Date,
    @EndDay Date
AS
BEGIN
    CREATE TABLE #LoanPriorProjected
    (
      Colums here....
    )
END

在我的 .Net 中，我有一个执行存储过程的 SqlCommand。像这样：

Using cmd As New SqlCommand("ProjectPriorInterestIncome", SQLConn)
   cmd.CommandType = CommandType.StoredProcedure
   cmd.Parameters.AddWithValue("@SelectedDate", frmDefault.dtDate.Value)
   cmd.Parameters.AddWithValue("@EndDay", Format(GetLastDayofMonth(frmDefault.dtDate.Value), "12/31/yyyy"))
   cmd.ExecuteNonQuery()  

   'Executing a select query from #temptable'
   cmd.CommandText = "SELECT * FROM #LoanPriorProjected"
   cmd.CommandType = CommandType.Text
   cmd.ExecuteNonQuery()
End Using

现在，当我尝试从 #LoanPriorProjected table 执行 select 查询时，它说

Invalid object name '#LoanPriorProjected'.

Answer 1

临时 table 是...临时的 - 它们存在于一个连接中。所以当执行过程时，table被创建，然后命令完成，临时table消失了。

您可以使用双哈希 ##temptable.

使 "more global" 成为临时 table

更好的解释参考this:

The classic temporary table comes in two flavors, the Global, or shareable, temporary table, prefixed by ‘##’, and the local temporary table, whose name is prefixed with ‘#’.The local temporary tables are less like normal tables than the Global temporary tables: You cannot create views on them, or associate triggers with them. It is a bit tricky to work out which process, session or procedure created them. We’ll give you a bit of help with that later. Most importantly, they are more secure than a global temporary table as only the owning process can see it.

Answer 2

如果你想使用临时 table 数据只是 select 临时 table 数据在过程中，即select * from #LoanPriorProjected 您的程序将 return 结果为 table 然后使用数据 table 显示此 table 数据。

如何检索在存储过程和 SqlCommand 中创建的#temptable 数据？

How to retrieve #temptable data that was created inside a stored procedure and SqlCommand?

.net

sql

vb.net

sql-server

global-temp-tables