Question

我想在一个连接中拆分对SQL Server的读/写。我使用链接服务器作为指示，跟随此链接：https://social.msdn.microsoft.com/Forums/sqlserver/en-US/b543e671-6604-4c8f-b838-ed4255eea6a5/how-to-use-readwrite-spliting-in-ms-sql-server?forum=databasedesign

但是我不能插入数据库。我的代码卡在了执行命令中（我使用Python pyodbc库）

conn = pyodbc.connect('Driver={SQL Server Native Client 11.0};'
                  'Server=<Domain name listener>;'
                  'Database=<DB name>;'
                  'uid=<user login>;pwd=<password login>;'
                  'Trusted_Connection=no;'
                  'ApplicationIntent=ReadOnly;') --> use for read on replica node

sql_write_link_server = """
INSERT OPENQUERY ([<Domain name listener>], 'SELECT FullName, Age FROM TestingInsert.dbo.Persons') VALUES ('Hitsu', 29)
"""

cursor = conn.cursor()  
cursor.execute(sql)  --> this code stuck at here
conn.commit()

我的脚本导出错误如下：

pyodbc.ProgrammingError: ('42000', u'[42000] [Microsoft][SQL Server Native Client 11.0][SQL Server]The operation could not be performed because OLE DB provider "SQLNCLI11" for linked server "<name link server>" was unable to begin a distributed transaction. (7391) (SQLExecDirectW); [42000] [Microsoft][SQL Server Native Client 11.0][SQL Server]OLE DB provider "SQLNCLI11" for linked server "name link server" returned message "No transaction is active.". (7412)')

请注意以下几点：

我刚刚在所有计算机上启用了MSDTC
关于查询字符串插入openquery，当我通过sql management studio直接连接到sql实例且没有错误时，可以执行此操作。

无法使用链接服务器插入SQL Server

0 个答案: