Python 如何修复'；20002，严重性9：自适应服务器连接失败'；pymssql中的错误

通过SQL Server Management Studio成功连接到数据库。但是使用

pymssql

连接失败：

pymssql错误： pymssql.OperationalError:（17892，“由于触发exe执行，登录'xxx'失败。DB-Lib错误消息20018，严重性14:\n一般SQL Server错误：检查SQL Server \nDB Lib错误消息20002的错误，严重性9:\n适配器服务器连接失败（xxxx\xxxx）\n”）

版本信息： SQL Server版本为2014 12.0.6024.0

Linux服务器操作系统是SUSE Linux Enterprise server 12（x86_64）

pymssql版本：

pymssql-2.1.4

./tsql-C： 更多freetds.log tsql-H LC_CTYPE=en_US.UTF-8；LC_NUMERIC=C；LC_时间=C；LC_COLLATE=C；LC_MONETARY=C；LC_=C；LC_PAPER=C；LC_NAME=C；LC_地址=C；LC_电话=C；LC_测量=C；LC_IDENTIFICATION=C“locale字符集为“UTF-8”，使用xxxx\xxxxx第1行中的默认字符集“UTF-8”Msg 18456（严重级别14，状态1）：“用户“xxxx”登录失败”

---

我应该怎么做才能解决这个问题？

您可以使用

tsql-hx.x.x-p1433-U您的\U用户名-p您的\U密码进行连接吗？（x.x.x.x由实际IP地址替换）？如果没有，freetds.log是否仍然显示“由于触发执行，登录'xxxx'登录失败”消息？错误消息是：区域设置是“LC_CTYPE=en_US.UTF-8；LC_NUMERIC=C；LC_TIME=C；LC_COLLATE=C；LC_MONETARY=C；LC_MESSAGES=C；LC_PAPER=C；LC_NAME=C；LC_ADDRESS=C；LC_TELEPHONE=C；LC_MEASUREMENT=C；LC_IDENTIFICATION=C”区域设置字符集是“UTF-8”使用xxxx\xxxxx第1行中的默认字符集“UTF-8”Msg 18456（严重级别14，状态1）：“用户“xxxx”登录失败”。错误20002（严重级别9）：自适应服务器连接失败连接到服务器时出现问题“由于触发执行，登录“xxxx”登录失败”表明问题特定于该SQL Server登录。您可以使用这些相同的凭据从SSM连接吗？如果是这样，登录触发器可能会对SQL Server登录可以连接的机器施加一些限制（假设SSMS机器和pymssql/FreeTDS机器是不同的框）。
Compile-time settings (established with the "configure" script)
                            Version: freetds v1.00.9
             freetds.conf directory: /usr/local/freetds/etc
     MS db-lib source compatibility: yes
        Sybase binary compatibility: no
                      Thread safety: yes
                      iconv library: yes
                        TDS version: 7.1
                              iODBC: no
                           unixodbc: yes
              SSPI "trusted" logins: no
                           Kerberos: no
                            OpenSSL: yes
                             GnuTLS: no
                               MARS: no

util.c:375:tdserror: returning TDS_INT_CANCEL(2)
net.c:216:Connecting to x.x.x.x port 1433 (TDS version 4.2)
net.c:242:tds_open_socket: connect(2) returned "Operation now in progress"
net.c:343:tds_open_socket() succeeded
packet.c:741:Sending packet
......
token.c:306:looking for login token, got  aa(ERROR)
token.c:125:tds_process_default_tokens() marker is aa(ERROR)
token.c:2328:tds_process_info() reading message 17892 from server
token.c:2403:Msg 17892, Severity 14, State 1, Server xxxxx\xxxxx, Line 1
Logon failed for login 'xxxx' due to trigger execution.
token.c:2417:tds_process_info() returning TDS_SUCCESS
token.c:306:looking for login token, got  fd(DONE)
token.c:125:tds_process_default_tokens() marker is fd(DONE)
token.c:2065:tds_process_end: more_results = 0
                was_cancelled = 0
                error = 1
                done_count_valid = 0
token.c:2082:                rows_affected = 0
token.c:2085:tds_process_end() state set to TDS_IDLE
token.c:415:tds_process_login_tokens() returning TDS_FAIL
login.c:530:login packet accepted
query.c:3796:tds_disconnect()
util.c:165:Changed query state from IDLE to DEAD
util.c:322:tdserror(0x7f676bb19200, 0x228d1c0, 20002, 0)
util.c:358:tdserror: client library not called because either tds_ctx (0x7f676bb19200) or tds_ctx->err_handler is NULL
util.c:375:tdserror: returning TDS_INT_CANCEL(2)
util.c:322:tdserror(0x1cca6f0, 0x228d1c0, 20002, 110)
dblib.c:7949:dbperror(0x22d8430, 20002, 110)
dblib.c:8017:dbperror: Calling dblib_err_handler with msgno = 20002; msg->msgtext = "Adaptive Server connection failed (xxxxx\xxxxx)"
dblib.c:8039:dbperror: dblib_err_handler for msgno = 20002; msg->msgtext = "Adaptive Server connection failed (xxxxx\xxxxx)" -- returns 2 (INT_CANCEL)
util.c:352:tdserror: client library returned TDS_INT_CANCEL(2)
util.c:375:tdserror: returning TDS_INT_CANCEL(2)
dblib.c:1260:tdsdbopen: tds_connect_and_login failed for "xxxxx\xxxxx"!
dblib.c:1476:dbclose(0x22d8430)
dblib.c:241:dblib_del_connection(0x7f676bd29860, 0x228d1c0)
mem.c:644:tds_free_all_results()
dblib.c:288:dblib_release_tds_ctx(1)
dblib.c:5881:dbfreebuf(0x22d8430)
dblib.c:749:dbloginfree(0x21bce80)
Traceback (most recent call last):
  File "src/pymssql.pyx", line 642, in pymssql.connect
pymssql.OperationalError: (20002, 'DB-Lib error message 20002, severity 9:\nAdaptive Server connection failed (xxxxx\xxxxx)\nNet-Lib error during Connection timed out (110)\n')