Getting cx_Oracle.InterfaceError: not a query exception while trying to run alter system command

Question

我在尝试结束指定用户的所有用户会话时遇到 cx_Oracle.InterfaceError: not a query 错误。

import cx_Oracle

try:
    con = cx_Oracle.connect('username/password@someip/ora12c')
    cursor = con.cursor()

    result= cursor.execute("select USERNAME,SID,SERIAL#,COMMAND,STATUS from v$session where USERNAME='uname'")


    for session in result:
        query_string="ALTER SYSTEM KILL SESSION '@1,@2' IMMEDIATE".replace("@1",str(session[1])).replace("@2",str(session[2]))
        print(query_string)
        cursor.execute(query_string)
        con.commit()

except cx_Oracle.DatabaseError as e:
    print('Unable to kill user sessions, Subsequent steps may FAIL!!')
    print(e)

finally:
    if cursor: cursor.close()
    if con: con.close()

运行以上代码我得到：

ALTER SYSTEM KILL SESSION '1526,30533' IMMEDIATE
Traceback (most recent call last):
  File "oracleKillSession.py", line 10, in <module>
    for session in result:
cx_Oracle.InterfaceError: not a query

我尝试了中的解决方案，但这对解决问题没有帮助。请帮忙。

Answer 1

您不能遍历游标 (for session in result)，然后使用同一个游标执行语句。为此，您需要一个单独的游标，或者您需要先从游标中获取所有行。因此，这两种方法中的一种适合您：

选项 1：

alter_cursor = con.cursor()
for session in result:
    alter_cursor.execute(query_string)

选项 2：

results = cursor.fetchall()
for session in result:
    cursor.execute(query_string)

Getting cx_Oracle.InterfaceError: not a query exception while trying to run alter system command

Getting cx_Oracle.InterfaceError: not a query exception while trying to run alter system command

python

oracle

cx-oracle