Question

我的系统上有一个版本11g和python 3的oracle。但是，当我尝试运行某个插入查询时，它不会起作用。它总是抛出一个未连接的异常。我检查了我的连接，并且选择的查询工作正常。

我的最终目标是在数据库中注册用户，然后返回其行ID。

我做了什么？

def db_register_applicant(applicant_name,password,years_of_experience,prefered_technology,skill_set):
    try:
        con=DBConnectivity.create_connection()
        cur=DBConnectivity.create_cursor(con)
        skills=skill_set.split(",")
        db_skills=[]
        applicant_id_db=None
        cur.execute("select skill_name from skills")

        for skill_name in cur:
            db_skills.append(skill_name)

        final_skills=[]
        for x in skills:
            if x not in db_skills:
                final_skills.append(x)


        cur.execute("select nvl(max(applicant_id),0) from applicant")
        last_row_id=int(cur.fetchone()[0]) // works till here, if i print this, it prints 7

        query="insert into applicant (applicant_id,applicant_name,password,years_of_experience,prefered_technology) values ('%d','%s','%s','%d','%s')"%\
                (last_row_id+1,applicant_name,password,years_of_experience,prefered_technology,skill_set)
        cur.execute(query)
        applicant_id_db=last_row_id+1
        for x in final_skills:
            cur.execute("select nvl(max(skill_id),0) from skills")
            skill_max=int(cur.fetchone()[0])
            print(skill_max)
            query="insert into skills values (skill_id,skill_name) values ('%d','%s')"%\
                (skill_max+1,x)
            cur.execute(query)
        con.commit() 
    finally:
        con.close()
        cur.close()
        return applicant_id_db

此功能从此功能调用：

def register():
    try:
        print("Enter the applicant name:")
        name=input()
        print("Enter the password:")
        password=input()
        print("Enter your skill set:")
        skill_set=input()
        print("Enter the number of years of experience:")
        experience=int(input())
        print("Enter prefered technology:")
        prefered_tech=input()
        if check_experience(experience) and check_password(password):
            applicant_id=db_register_applicant(name, password, experience, prefered_tech, skill_set)
            print("Your applicant id is :"+applicant_id)


    except Exception as e:
        print("Sorry,Some system error occured")
        print(e)

输出

抱歉，发生了一些系统错误

未连接

我的连接文件代码：

import cx_Oracle
def create_connection():
    return cx_Oracle.Connection('something/something@ip/somethingother')

def create_cursor(con):
    return cx_Oracle.Cursor(con)

我的代码出了什么问题？

更新

更改了db_register_applicant中的finally语句，现在它不会抛出任何异常，但插入仍然无法正常工作。

finally:
        cur.close()
        con.close()
        return applicant_id_db

插入查询不工作python oracle

0 个答案: