Python的MySQLdb模块应在SQL语句字符串中使用格式说明符实现占位符。我正在从MYSQL CookBook中举一个例子
import sys
import MySQLdb
import Cookbook
try:
conn = Cookbook.connect ()
print("Connected")
except MySQLdb.Error as e:
print("Cannot connect to server")
print("Error code:", e.args[0])
print("Error message:", e.args[1])
sys.exit (1)
cursor = conn.cursor ()
cursor.execute ("""
INSERT INTO profile (name,birth,color,foods,cats)
VALUES(%s,%s,%s,%s,%s)
""",("Josef", "1971-01-01", None, "eggroll", 4))
但是当我从外壳检查时
mysql> SELECT * FROM profile WHERE name LIKE 'J%';
+----+--------+------------+-------+----------------+------+
| id | name | birth | color | foods | cats |
+----+--------+------------+-------+----------------+------+
| 7 | Joanna | 1952-08-20 | green | lutefisk,fadge | 0 |
+----+--------+------------+-------+----------------+------+
很明显没有插入任何内容，为什么？如果我按照建议添加cursor.commit
cursor.commit()
AttributeError: 'Cursor' object has no attribute 'commit'
您没有提交交易。
conn.commit()执行查询后，最后添加。
cursor = conn.cursor()
cursor.execute ("""
INSERT INTO profile (name,birth,color,foods,cats)
VALUES(%s,%s,%s,%s,%s)
""",("Josef", "1971-01-01", None, "eggroll", 4))
conn.commit()
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我来说两句