Question

我正在运行以下内容：Windows 7，Python 2.5和SQL Server 2005，SQLNCLI作为提供程序。我有一个表，它的名称是TABLE，其字段是FIELD0，FIELD1，FIELD2。

您可以在此处找到SQLNCLI.msi：http://www.microsoft.com/downloads/en/details.aspx?FamilyID=d09c1d60-a13c-4479-9b91-9e8b9d835cdc&displaylang=en

我正在考虑使用商店程序。它的目的是更新一行，如果它不存在则插入它。 当它到达插入语句时出错，但插入成功。这是代码：

set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
go

create procedure [dbo].[TEST0]
    @FIELD0             varchar(200) 
as
begin
    declare @exist varchar(MAX)

    set @exist = (select top 1 [FIELD0] from [TABLE] where [FIELD0] = @FIELD0)

    if @exist is null
    begin
        insert into [TABLE] ([FIELD0],[FIELD1],[FIELD2]) values (@FIELD0,'FIELD1','FIELD2')

        select top 1 [FIELD0] from [TABLE]
        where 
            [FIELD0] = @FIELD0
        return 10
    end
    else
        select top 1 [FIELD0] from [TABLE] where [FIELD0] = @FIELD0 
end

要查看错误，请运行此Python代码两次;它第一次失败，但第二次成功：

from win32com.client import Dispatch

dbConn = Dispatch( "ADODB.Connection" )
dbConn.Open( "server=xx.xx.xx.xx; initial catalog=MYDB; user=myuser; password=mypass; provider=SQLNCLI" )

command = Dispatch( 'ADODB.Command' )
command.ActiveConnection = s.dbConn
command.CommandText = "[TEST0]"
command.CommandType = 4


param0 = command.CreateParameter ('@FIELD0',200,1,200,'VALUE')
command.Parameters.Append( param0 )
print param0

(rs, result) = command.Execute()
while not rs.EOF:
   dic = {}
   for field in rs.Fields :
      dic[str( field.name )] = str( field.value )
   print dic
rs.MoveNext()

Answer 1

我解决了这个问题：

set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
go

alter procedure [dbo].[TEST0]
    @FIELD0             varchar(200) 
as
begin
    set nocount on <=============================add this
    declare @exist varchar(MAX)

    set @exist = (select top 1 [FIELD0] from [TABLE] where [FIELD0] = @FIELD0)

    if @exist is null
    begin
        insert into [TABLE] ([FIELD0],[FIELD1],[FIELD2]) values (@FIELD0,'FIELD1','FIELD2')

        select top 1 [FIELD0] from [TABLE]
        where 
            [FIELD0] = @FIELD0
    end
    else
        select top 1 [FIELD0] from [TABLE] where [FIELD0] = @FIELD0 
    set nocount off <=============================add this
end

这是Python还是SQL服务器错误？

1 个答案: