[英]python sqlite3 execute multiple select queries
我有一个名为profil parent table of Academic和projet的表,我正在尝试遍历所有配置文件并获取他们的 Academic 和 projet
import pandas as pd
import sqlite3
conn = sqlite3.connect("Desktop/Dev/ScoutIT/src/db.sqlite3")
cur = conn.cursor()
candidats_id = cur.execute("select id from Candidat_profil ;")
for candidat_id in candidats_id:
academic= cur.execute('select * from Candidat_academic where profil_id = ?' , candidat_id)
projet= cur.execute('select * from Candidat_projet_realise where profil_id = ?' , candidat_id)
for row in academic:
print(row)
for row in projet:
print(row)
上面的代码只打印出 projet 但是当我注释掉 projet 时,我得到了学术打印。
注意:我有更多要在此代码中实现的子表
尝试将您的代码更改为以下内容:
import pandas as pd
import sqlite3
conn = sqlite3.connect("Desktop/Dev/ScoutIT/src/db.sqlite3")
cur = conn.cursor()
candidats_id = cur.execute("select id from Candidat_profil ;")
for candidat_id in candidats_id:
cur.execute('select * from Candidat_academic where profil_id = ?' , candidat_id)
academic=cur.fetchall()
cur.execute('select * from Candidat_projet_realise where profil_id = ?' , candidat_id)
projet= cur.fetchall()
for row in academic:
print(row)
for row in projet:
print(row)
我建议您使用cur.fetchone()
或cur.fetchall()
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