當我在sql中運行delete命令（在Python和Mysql中）時，不要刪除記錄

Question

以下代碼運行時沒有錯誤，但數據庫不會影響。 這意味着記錄不能被刪除。的代碼在Python 部分

import MySQLdb as msdb 
def delete_row(self): 
    con = msdb.connect('localhost','root','24434','matab_db') 
    cur = con.cursor() 
    qq = "DELETE FROM tbl_rezerv_nobat WHERE id=4" 
    # or qq = "DELETE FROM tbl_rezerv_nobat WHERE id='4'" 
    bb = cur.execute(qq) 
    con.close() 

感謝

Answer 1

您還應該添加con.commit()前con.close()

即

def delete_row(self): 
    con = msdb.connect('localhost','root','24434','matab_db') 
    cur = con.cursor() 
    qq = "DELETE FROM tbl_rezerv_nobat WHERE id=4;" 
    # or qq = "DELETE FROM tbl_rezerv_nobat WHERE id='4'" 
    bb = cur.execute(qq) 
    con.commit() 
    con.close()