将数据帧插入 pl/sql 表

Question

我正在努力尝试将数据框插入到 pl/sql 表中。我可以从我自己的模式中查询表而没有问题，所以连接很好。数据框显示正常，但最后一行让我感到震惊：

DatabaseError: 执行失败 sql 'SELECT name FROM sqlite_master WHERE type='table' AND name=?;': ORA-01036: illegal variable name/number

     import os 
     import datetime as dt
     import cx_Oracle
     import sqlalchemy
 
     username = '****'
     password = '****'

     dsn = '(DESCRIPTION=(CONNECT_TIMEOUT=15)(TRANSPORT_CONNECT_TIMEOUT=3)(RETRY_COUNT=3)\
       (ADDRESS=(PROTOCOL=TCP)(HOST=***)(PORT=1521))(CONNECT_DATA=(SERVER=DEDICATED)\
       (SERVICE_NAME=***)))'
     enc = 'utf-8'

connection = cx_Oracle.connect(user=username, password=password, dsn=dsn, encoding=enc)
cursor = connection.cursor()

sessions = glob.glob('path to daily file/*file with timestamp @ end of name*.csv')
latest_sessions = max(sessions, key=os.path.getctime, default = 0)

dfSessions = pd.read_csv(latest_sessions, sep=',', index_col=False, dtype='unicode')
dfSessions.drop([drop several columns], axis=1, inplace=True)

dfSessions.head(5)

dfSessions.to_sql('ARRAY_SESSIONS_NEW', connection,schema='BXP6281', if_exists='replace')