使用python语言连接oracle数据库的连接工具，示例如下： import cx_Oracle connection = cx_Oracle.connect("scott", "tiger", "localhost/orcl") cursor = connection.cursor() cursor.execute(""" SELECT empno, ename FROM emp WHERE deptno = :did AND sal > :eid""", did =30, eid = 1000) for empno, empname in cu