![\"python\u5982\u4f55\u8fde\u63a5sql\"](\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/25073156\/05fb303a-6d27-4ec8-adc5-cb99848aa210.webp\")
<\/p>\n<\/p>\n
\u5f00\u5934\u6bb5\u843d\uff1a \u6b63\u6587\uff1a<\/p>\n<\/p>\n \u4e00\u3001SQLITE3\u6a21\u5757<\/p>\n<\/p>\n SQLite\u662f\u4e00\u4e2aC\u8bed\u8a00\u5e93\uff0c\u5b9e\u73b0\u4e86\u81ea\u7ed9\u81ea\u8db3\u3001\u65e0\u670d\u52a1\u5668\u3001\u96f6\u914d\u7f6e\u3001\u4e8b\u52a1\u6027\u7684SQL\u6570\u636e\u5e93\u5f15\u64ce\u3002SQLite3\u6a21\u5757\u662fPython\u6807\u51c6\u5e93\u7684\u4e00\u90e8\u5206\uff0c\u4f7f\u5f97\u4e0eSQLite\u6570\u636e\u5e93\u7684\u8fde\u63a5\u53d8\u5f97\u975e\u5e38\u7b80\u5355\u3002<\/p>\n<\/p>\n \u8981\u4f7f\u7528SQLite3\u6a21\u5757\uff0c\u9996\u5148\u9700\u8981\u5bfc\u5165\u6a21\u5757\u5e76\u521b\u5efa\u4e00\u4e2a\u6570\u636e\u5e93\u8fde\u63a5\u3002\u53ef\u4ee5\u4f7f\u7528sqlite3.connect()\u65b9\u6cd5\u8fde\u63a5\u5230\u4e00\u4e2aSQLite\u6570\u636e\u5e93\u6587\u4ef6\uff0c\u5982\u679c\u6587\u4ef6\u4e0d\u5b58\u5728\uff0c\u5b83\u4f1a\u81ea\u52a8\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u6570\u636e\u5e93\u6587\u4ef6\u3002<\/p>\n<\/p>\n connection = sqlite3.connect('example.db')<\/p>\n <\/code><\/pre>\n<\/p>\n \u4e00\u65e6\u8fde\u63a5\u5230\u6570\u636e\u5e93\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u8fde\u63a5\u5bf9\u8c61\u7684cursor()\u65b9\u6cd5\u521b\u5efa\u4e00\u4e2a\u6e38\u6807\uff0c\u7136\u540e\u4f7f\u7528execute()\u65b9\u6cd5\u6267\u884cSQL\u8bed\u53e5\u3002\u4f8b\u5982\uff0c\u521b\u5efa\u4e00\u4e2a\u65b0\u8868\uff1a<\/p>\n<\/p>\n cursor.execute('''<\/p>\n CREATE TABLE IF NOT EXISTS users (<\/p>\n id INTEGER PRIMARY KEY,<\/p>\n name TEXT,<\/p>\n age INTEGER<\/p>\n )<\/p>\n ''')<\/p>\n <\/code><\/pre>\n<\/p>\n \u4f7f\u7528execute()\u65b9\u6cd5\u53ef\u4ee5\u63d2\u5165\u6570\u636e\u548c\u6267\u884c\u67e5\u8be2\u3002\u4f7f\u7528fetchall()\u65b9\u6cd5\u53ef\u4ee5\u83b7\u53d6\u67e5\u8be2\u7ed3\u679c\u3002<\/p>\n<\/p>\n cursor.execute('INSERT INTO users (name, age) VALUES (?, ?)', ('Alice', 30))<\/p>\n cursor.execute('INSERT INTO users (name, age) VALUES (?, ?)', ('Bob', 25))<\/p>\n connection.commit()<\/p>\n cursor.execute('SELECT * FROM users')<\/p>\n rows = cursor.fetchall()<\/p>\n for row in rows:<\/p>\n print(row)<\/p>\n <\/code><\/pre>\n<\/p>\n \u5b8c\u6210\u6570\u636e\u5e93\u64cd\u4f5c\u540e\uff0c\u8bf7\u786e\u4fdd\u5173\u95ed\u8fde\u63a5\u4ee5\u91ca\u653e\u8d44\u6e90\u3002<\/p>\n<\/p>\n <\/code><\/pre>\n<\/p>\n \u4e8c\u3001PYMYSQL\u8fde\u63a5MySQL\u6570\u636e\u5e93<\/p>\n<\/p>\n PyMySQL\u662f\u4e00\u4e2a\u7eafPython\u5b9e\u73b0\u7684MySQL\u5ba2\u6237\u7aef\u5e93\uff0c\u63d0\u4f9b\u4e86\u4e0eMySQL\u6570\u636e\u5e93\u4ea4\u4e92\u7684\u529f\u80fd\u3002<\/p>\n<\/p>\n \u5728\u4f7f\u7528PyMySQL\u4e4b\u524d\uff0c\u9700\u8981\u5148\u5b89\u88c5\u8be5\u5e93\u3002\u53ef\u4ee5\u4f7f\u7528pip\u8fdb\u884c\u5b89\u88c5\uff1a<\/p>\n<\/p>\n <\/code><\/pre>\n<\/p>\n \u4f7f\u7528PyMySQL\u8fde\u63a5\u5230MySQL\u6570\u636e\u5e93\u9700\u8981\u63d0\u4f9b\u6570\u636e\u5e93\u4e3b\u673a\u3001\u7528\u6237\u540d\u3001\u5bc6\u7801\u548c\u6570\u636e\u5e93\u540d\u79f0\u7b49\u4fe1\u606f\u3002<\/p>\n<\/p>\n connection = pymysql.connect(<\/p>\n host='localhost',<\/p>\n user='user',<\/p>\n password='passwd',<\/p>\n database='dbname'<\/p>\n )<\/p>\n <\/code><\/pre>\n<\/p>\n \u4e0eSQLite3\u7c7b\u4f3c\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u6e38\u6807\u6267\u884cSQL\u67e5\u8be2\u548c\u5176\u4ed6\u6570\u636e\u5e93\u64cd\u4f5c\u3002<\/p>\n<\/p>\n cursor.execute('SELECT * FROM users')<\/p>\n rows = cursor.fetchall()<\/p>\n for row in rows:<\/p>\n print(row)<\/p>\n cursor.execute('INSERT INTO users (name, age) VALUES (%s, %s)', ('Charlie', 35))<\/p>\n connection.commit()<\/p>\n <\/code><\/pre>\n<\/p>\n \u5b8c\u6210\u64cd\u4f5c\u540e\uff0c\u8bb0\u5f97\u5173\u95ed\u8fde\u63a5\u3002<\/p>\n<\/p>\n <\/code><\/pre>\n<\/p>\n \u4e09\u3001SQLALCHEMY\u8fdb\u884cORM\u64cd\u4f5c<\/p>\n<\/p>\n SQLAlchemy\u662fPython\u4e2d\u4e00\u4e2a\u6d41\u884c\u7684ORM\u5e93\uff0c\u63d0\u4f9b\u4e86\u4e00\u79cd\u4f7f\u7528Python\u5bf9\u8c61\u6765\u7ba1\u7406\u6570\u636e\u5e93\u7684\u9ad8\u6548\u65b9\u5f0f\u3002<\/p>\n<\/p>\n \u9996\u5148\uff0c\u9700\u8981\u5b89\u88c5SQLAlchemy\u5e93\uff1a<\/p>\n<\/p>\n <\/code><\/pre>\n<\/p>\n SQLAlchemy\u901a\u8fc7\u521b\u5efa\u4e00\u4e2a\u5f15\u64ce\u6765\u8fde\u63a5\u6570\u636e\u5e93\u3002\u5f15\u64ce\u662fSQLAlchemy\u4e0e\u6570\u636e\u5e93\u4ea4\u4e92\u7684\u6838\u5fc3\u63a5\u53e3\u3002<\/p>\n<\/p>\n engine = create_engine('sqlite:\/\/\/example.db')<\/p>\n <\/code><\/pre>\n<\/p>\n \u5728SQLAlchemy\u4e2d\uff0c\u6570\u636e\u5e93\u8868\u88ab\u8868\u793a\u4e3a\u4e00\u4e2aPython\u7c7b\uff0c\u7c7b\u4e2d\u7684\u5c5e\u6027\u5bf9\u5e94\u4e8e\u8868\u4e2d\u7684\u5217\u3002<\/p>\n<\/p>\n from sqlalchemy import Column, Integer, String<\/p>\n Base = declarative_base()<\/p>\n class User(Base):<\/p>\n __tablename__ = 'users'<\/p>\n id = Column(Integer, primary_key=True)<\/p>\n name = Column(String)<\/p>\n age = Column(Integer)<\/p>\n <\/code><\/pre>\n<\/p>\n \u4f7f\u7528Base.metadata.create_all()\u65b9\u6cd5\u53ef\u4ee5\u521b\u5efa\u6240\u6709\u5b9a\u4e49\u7684\u8868\u3002\u7136\u540e\uff0c\u53ef\u4ee5\u4f7f\u7528\u4f1a\u8bdd\u5bf9\u8c61\u6267\u884c\u6570\u636e\u5e93\u64cd\u4f5c\u3002<\/p>\n<\/p>\n Base.metadata.create_all(engine)<\/p>\n Session = sessionmaker(bind=engine)<\/p>\n session = Session()<\/p>\n new_user = User(name='David', age=40)<\/p>\n session.add(new_user)<\/p>\n users = session.query(User).all()<\/p>\n for user in users:<\/p>\n print(user.name, user.age)<\/p>\n session.commit()<\/p>\n session.close()<\/p>\n <\/code><\/pre>\n<\/p>\n \u56db\u3001\u4f7f\u7528\u73af\u5883\u53d8\u91cf\u8fdb\u884c\u8fde\u63a5\u7ba1\u7406<\/p>\n<\/p>\n \u5728\u5b9e\u9645\u9879\u76ee\u4e2d\uff0c\u4e3a\u4e86\u589e\u5f3a\u5b89\u5168\u6027\u548c\u7075\u6d3b\u6027\uff0c\u901a\u5e38\u4f1a\u4f7f\u7528\u73af\u5883\u53d8\u91cf\u6765\u7ba1\u7406\u6570\u636e\u5e93\u8fde\u63a5\u4fe1\u606f\u3002<\/p>\n<\/p>\n \u73af\u5883\u53d8\u91cf\u53ef\u4ee5\u5728\u64cd\u4f5c\u7cfb\u7edf\u4e2d\u8bbe\u7f6e\uff0c\u4e5f\u53ef\u4ee5\u901a\u8fc7Python\u7684os\u6a21\u5757\u8fdb\u884c\u8bbe\u7f6e\u548c\u8bfb\u53d6\u3002<\/p>\n<\/p>\n os.environ['DB_HOST'] = 'localhost'<\/p>\n os.environ['DB_USER'] = 'user'<\/p>\n os.environ['DB_PASS'] = 'passwd'<\/p>\n os.environ['DB_NAME'] = 'dbname'<\/p>\n <\/code><\/pre>\n<\/p>\n \u5728\u8fde\u63a5\u6570\u636e\u5e93\u65f6\uff0c\u8bfb\u53d6\u73af\u5883\u53d8\u91cf\u4e2d\u7684\u4fe1\u606f\u6765\u914d\u7f6e\u8fde\u63a5\u53c2\u6570\u3002<\/p>\n<\/p>\n host = os.getenv('DB_HOST')<\/p>\n user = os.getenv('DB_USER')<\/p>\n password = os.getenv('DB_PASS')<\/p>\n database = os.getenv('DB_NAME')<\/p>\n connection = pymysql.connect(host=host, user=user, password=password, database=database)<\/p>\n <\/code><\/pre>\n<\/p>\n \u4e94\u3001\u5904\u7406\u8fde\u63a5\u6c60\u548c\u5e76\u53d1\u8bbf\u95ee<\/p>\n<\/p>\n \u5728\u9ad8\u5e76\u53d1\u7684\u5e94\u7528\u573a\u666f\u4e2d\uff0c\u4f7f\u7528\u8fde\u63a5\u6c60\u53ef\u4ee5\u63d0\u9ad8\u6570\u636e\u5e93\u8fde\u63a5\u7684\u6548\u7387\u548c\u6027\u80fd\u3002<\/p>\n<\/p>\n SQLAlchemy\u5185\u7f6e\u4e86\u8fde\u63a5\u6c60\u7ba1\u7406\u529f\u80fd\uff0c\u53ef\u4ee5\u901a\u8fc7\u914d\u7f6e\u5f15\u64ce\u53c2\u6570\u6765\u4f7f\u7528\u8fde\u63a5\u6c60\u3002<\/p>\n<\/p>\n engine = create_engine('mysql+pymysql:\/\/user:passwd@localhost\/dbname', poolclass=QueuePool, pool_size=5, max_overflow=10)<\/p>\n <\/code><\/pre>\n<\/p>\n \u5728\u5e76\u53d1\u8bbf\u95ee\u573a\u666f\u4e2d\uff0c\u9700\u8981\u786e\u4fdd\u6570\u636e\u5e93\u8bbf\u95ee\u7684\u7ebf\u7a0b\u5b89\u5168\u3002SQLAlchemy\u901a\u8fc7\u4f1a\u8bdd\u5bf9\u8c61\u6765\u7ba1\u7406\u5e76\u53d1\u8bbf\u95ee\uff0c\u53ef\u4ee5\u4e3a\u6bcf\u4e2a\u7ebf\u7a0b\u521b\u5efa\u4e00\u4e2a\u72ec\u7acb\u7684\u4f1a\u8bdd\u3002<\/p>\n<\/p>\n SessionFactory = sessionmaker(bind=engine)<\/p>\n Session = scoped_session(SessionFactory)<\/p>\n session = Session()<\/p>\n <\/code><\/pre>\n<\/p>\n \u516d\u3001\u9519\u8bef\u5904\u7406\u548c\u65e5\u5fd7\u8bb0\u5f55<\/p>\n<\/p>\n \u5728\u6570\u636e\u5e93\u64cd\u4f5c\u4e2d\uff0c\u9519\u8bef\u5904\u7406\u548c\u65e5\u5fd7\u8bb0\u5f55\u662f\u4e24\u4e2a\u91cd\u8981\u7684\u65b9\u9762\u3002<\/p>\n<\/p>\n \u5728\u6267\u884c\u6570\u636e\u5e93\u64cd\u4f5c\u65f6\uff0c\u53ef\u80fd\u4f1a\u53d1\u751f\u5404\u79cd\u5f02\u5e38\uff0c\u5982\u8fde\u63a5\u8d85\u65f6\u3001\u67e5\u8be2\u5931\u8d25\u7b49\u3002\u5e94\u4f7f\u7528try-except\u5757\u6355\u83b7\u5f02\u5e38\u5e76\u8fdb\u884c\u5904\u7406\u3002<\/p>\n<\/p>\n # \u6267\u884c\u6570\u636e\u5e93\u64cd\u4f5c<\/p>\n cursor.execute('SELECT * FROM non_existent_table')<\/p>\n except pymysql.MySQLError as e:<\/p>\n print(f"Error occurred: {e}")<\/p>\n <\/code><\/pre>\n<\/p>\n \u4f7f\u7528Python\u7684logging\u6a21\u5757\u53ef\u4ee5\u8bb0\u5f55\u65e5\u5fd7\u4fe1\u606f\uff0c\u4ee5\u4fbf\u5728\u51fa\u73b0\u95ee\u9898\u65f6\u8fdb\u884c\u6392\u67e5\u3002<\/p>\n<\/p>\n logging.basicConfig(level=logging.INFO, format='%(asctime)s - %(levelname)s - %(message)s')<\/p>\n logging.info("Database operation started")<\/p>\n <\/code><\/pre>\n<\/p>\n \u901a\u8fc7\u4ee5\u4e0a\u51e0\u79cd\u65b9\u6cd5\uff0cPython\u7a0b\u5e8f\u53ef\u4ee5\u7075\u6d3b\u9ad8\u6548\u5730\u8fde\u63a5\u548c\u64cd\u4f5cSQL\u6570\u636e\u5e93\uff0c\u4ece\u800c\u6ee1\u8db3\u5404\u79cd\u5e94\u7528\u573a\u666f\u7684\u9700\u6c42\u3002\u65e0\u8bba\u662f\u7b80\u5355\u7684SQLite\u6570\u636e\u5e93\u8fd8\u662f\u590d\u6742\u7684MySQL\u6570\u636e\u5e93\uff0cPython\u90fd\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u5de5\u5177\u548c\u5e93\u6765\u652f\u6301\u6570\u636e\u5e93\u5f00\u53d1\u3002<\/p>\n<\/p>\n \u5982\u4f55\u5728Python\u4e2d\u8fde\u63a5\u4e0d\u540c\u7c7b\u578b\u7684SQL\u6570\u636e\u5e93\uff1f<\/strong> \u5728Python\u4e2d\u6267\u884cSQL\u67e5\u8be2\u540e\u5982\u4f55\u5904\u7406\u7ed3\u679c\uff1f<\/strong> Python\u8fde\u63a5SQL\u65f6\u9047\u5230\u7684\u5e38\u89c1\u9519\u8bef\u53ca\u89e3\u51b3\u65b9\u6cd5\u662f\u4ec0\u4e48\uff1f<\/strong>
Python\u8fde\u63a5SQL\u6570\u636e\u5e93\u7684\u65b9\u5f0f\u6709\u591a\u79cd\uff0c\u5e38\u7528\u7684\u65b9\u6cd5\u5305\u62ec\uff1a\u4f7f\u7528sqlite3\u6a21\u5757\u3001\u901a\u8fc7PyMySQL\u8fde\u63a5MySQL\u6570\u636e\u5e93\u3001\u4f7f\u7528SQLAlchemy\u8fdb\u884cORM\u64cd\u4f5c<\/strong>\u3002\u5176\u4e2d\uff0cSQLAlchemy<\/strong>\u662f\u4e00\u4e2a\u5f3a\u5927\u7684ORM\u5e93\uff0c\u80fd\u591f\u5927\u5927\u7b80\u5316\u6570\u636e\u5e93\u64cd\u4f5c\uff0c\u56e0\u800c\u5907\u53d7\u5f00\u53d1\u8005\u9752\u7750\u3002SQLAlchemy\u4e0d\u4ec5\u652f\u6301\u591a\u79cd\u6570\u636e\u5e93\u7c7b\u578b\uff0c\u540c\u65f6\u4e5f\u63d0\u4f9b\u4e86\u76f4\u89c2\u7684\u67e5\u8be2\u63a5\u53e3\u548c\u7075\u6d3b\u7684\u914d\u7f6e\u9009\u9879\u3002\u901a\u8fc7SQLAlchemy\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528Python\u5bf9\u8c61\u6765\u7ba1\u7406\u6570\u636e\u5e93\uff0c\u4ece\u800c\u63d0\u9ad8\u5f00\u53d1\u6548\u7387\u548c\u4ee3\u7801\u53ef\u7ef4\u62a4\u6027\u3002\u4f7f\u7528SQLAlchemy\u65f6\uff0c\u9996\u5148\u9700\u8981\u5b89\u88c5\u5e93\uff0c\u7136\u540e\u521b\u5efa\u6570\u636e\u5e93\u5f15\u64ce\uff0c\u6700\u540e\u5b9a\u4e49\u6a21\u578b\u7c7b\u5e76\u8fdb\u884c\u6570\u636e\u5e93\u64cd\u4f5c\u3002<\/p>\n<\/p>\n\n
import sqlite3<\/p>\n\u8fde\u63a5\u5230SQLite\u6570\u636e\u5e93<\/strong><\/h2>\n
\n
cursor = connection.cursor()<\/p>\n\u521b\u5efa\u8868<\/strong><\/h2>\n
\n
# \u63d2\u5165\u6570\u636e<\/p>\n\u63d0\u4ea4\u4e8b\u52a1<\/strong><\/h2>\n
\u67e5\u8be2\u6570\u636e<\/strong><\/h2>\n
\n
connection.close()<\/p>\n\n
pip install pymysql<\/p>\n\n
import pymysql<\/p>\n\u8fde\u63a5\u5230MySQL\u6570\u636e\u5e93<\/strong><\/h2>\n
\n
cursor = connection.cursor()<\/p>\n\u6267\u884c\u67e5\u8be2<\/strong><\/h2>\n
\u83b7\u53d6\u7ed3\u679c<\/strong><\/h2>\n
\u63d2\u5165\u6570\u636e<\/strong><\/h2>\n
\u63d0\u4ea4\u4e8b\u52a1<\/strong><\/h2>\n
\n
connection.close()<\/p>\n\n
pip install sqlalchemy<\/p>\n\n
from sqlalchemy import create_engine<\/p>\n\u521b\u5efa\u6570\u636e\u5e93\u5f15\u64ce<\/strong><\/h2>\n
\n
from sqlalchemy.ext.declarative import declarative_base<\/p>\n\n
from sqlalchemy.orm import sessionmaker<\/p>\n\u521b\u5efa\u8868<\/strong><\/h2>\n
\u521b\u5efa\u4f1a\u8bdd<\/strong><\/h2>\n
\u63d2\u5165\u6570\u636e<\/strong><\/h2>\n
\u67e5\u8be2\u6570\u636e<\/strong><\/h2>\n
\u63d0\u4ea4\u4e8b\u52a1<\/strong><\/h2>\n
\u5173\u95ed\u4f1a\u8bdd<\/strong><\/h2>\n
\n
import os<\/p>\n\u8bbe\u7f6e\u73af\u5883\u53d8\u91cf<\/strong><\/h2>\n
\n
import pymysql<\/p>\n\u8bfb\u53d6\u73af\u5883\u53d8\u91cf<\/strong><\/h2>\n
\u8fde\u63a5\u5230MySQL\u6570\u636e\u5e93<\/strong><\/h2>\n
\n
from sqlalchemy.pool import QueuePool<\/p>\n\u521b\u5efa\u5f15\u64ce\u5e76\u914d\u7f6e\u8fde\u63a5\u6c60<\/strong><\/h2>\n
\n
from sqlalchemy.orm import scoped_session<\/p>\n\u521b\u5efa\u7ebf\u7a0b\u5b89\u5168\u7684\u4f1a\u8bdd\u5de5\u5382<\/strong><\/h2>\n
\u4f7f\u7528\u7ebf\u7a0b\u5b89\u5168\u7684\u4f1a\u8bdd<\/strong><\/h2>\n
\n
try:<\/p>\n\n
import logging<\/p>\n\u914d\u7f6e\u65e5\u5fd7\u8bb0\u5f55<\/strong><\/h2>\n
\u8bb0\u5f55\u65e5\u5fd7<\/strong><\/h2>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u4e0d\u540c\u7684\u5e93\u6765\u8fde\u63a5\u5404\u79cd\u7c7b\u578b\u7684SQL\u6570\u636e\u5e93\u3002\u5bf9\u4e8eMySQL\uff0c\u53ef\u4ee5\u4f7f\u7528mysql-connector-python<\/code>\u5e93\uff1b\u5bf9\u4e8ePostgreSQL\uff0c\u63a8\u8350\u4f7f\u7528psycopg2<\/code>\u5e93\uff1b\u800cSQLite\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528Python\u5185\u7f6e\u7684sqlite3<\/code>\u5e93\u3002\u9996\u5148\uff0c\u60a8\u9700\u8981\u5b89\u88c5\u76f8\u5e94\u7684\u5e93\uff0c\u4f8b\u5982\u4f7f\u7528pip install mysql-connector-python<\/code>\u6765\u5b89\u88c5MySQL\u8fde\u63a5\u5668\u3002\u8fde\u63a5\u65f6\uff0c\u9700\u8981\u63d0\u4f9b\u6570\u636e\u5e93\u7684\u4e3b\u673a\u540d\u3001\u7528\u6237\u540d\u3001\u5bc6\u7801\u548c\u6570\u636e\u5e93\u540d\u79f0\u7b49\u4fe1\u606f\u3002<\/p>\n
\u4e00\u65e6\u6210\u529f\u8fde\u63a5\u5230\u6570\u636e\u5e93\u5e76\u6267\u884c\u4e86SQL\u67e5\u8be2\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u6e38\u6807\u5bf9\u8c61\u7684\u65b9\u6cd5\u6765\u5904\u7406\u7ed3\u679c\u3002\u901a\u5e38\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528fetchone()<\/code>\u6765\u83b7\u53d6\u5355\u6761\u8bb0\u5f55\uff0c\u4f7f\u7528fetchall()<\/code>\u83b7\u53d6\u6240\u6709\u8bb0\u5f55\u3002\u5904\u7406\u5b8c\u7ed3\u679c\u540e\uff0c\u8bb0\u5f97\u4f7f\u7528close()<\/code>\u65b9\u6cd5\u5173\u95ed\u6e38\u6807\u548c\u6570\u636e\u5e93\u8fde\u63a5\uff0c\u4ee5\u91ca\u653e\u8d44\u6e90\u5e76\u4fdd\u6301\u7cfb\u7edf\u7684\u7a33\u5b9a\u6027\u3002<\/p>\n
\u5728\u8fde\u63a5SQL\u6570\u636e\u5e93\u65f6\uff0c\u60a8\u53ef\u80fd\u4f1a\u9047\u5230\u4e00\u4e9b\u5e38\u89c1\u9519\u8bef\uff0c\u4f8b\u5982\u201c\u65e0\u6cd5\u8fde\u63a5\u5230\u6570\u636e\u5e93\u201d\u6216\u201c\u8eab\u4efd\u9a8c\u8bc1\u5931\u8d25\u201d\u3002\u8fd9\u901a\u5e38\u662f\u7531\u4e8e\u9519\u8bef\u7684\u6570\u636e\u5e93\u51ed\u636e\u3001\u6570\u636e\u5e93\u670d\u52a1\u672a\u542f\u52a8\u6216\u7f51\u7edc\u95ee\u9898\u5f15\u8d77\u7684\u3002\u68c0\u67e5\u60a8\u7684\u8fde\u63a5\u5b57\u7b26\u4e32\uff0c\u786e\u4fdd\u4e3b\u673a\u540d\u3001\u7528\u6237\u540d\u548c\u5bc6\u7801\u6b63\u786e\u65e0\u8bef\u3002\u786e\u8ba4\u6570\u636e\u5e93\u670d\u52a1\u662f\u5426\u6b63\u5728\u8fd0\u884c\uff0c\u5e76\u786e\u4fdd\u9632\u706b\u5899\u8bbe\u7f6e\u6ca1\u6709\u963b\u6b62\u8fde\u63a5\u3002\u5982\u679c\u95ee\u9898\u4ecd\u7136\u5b58\u5728\uff0c\u67e5\u770b\u6570\u636e\u5e93\u7684\u65e5\u5fd7\u6587\u4ef6\u53ef\u80fd\u4f1a\u63d0\u4f9b\u66f4\u591a\u7684\u9519\u8bef\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5f00\u5934\u6bb5\u843d\uff1aPython\u8fde\u63a5SQL\u6570\u636e\u5e93\u7684\u65b9\u5f0f\u6709\u591a\u79cd\uff0c\u5e38\u7528\u7684\u65b9\u6cd5\u5305\u62ec\uff1a\u4f7f\u7528sqlite3\u6a21\u5757\u3001\u901a\u8fc7PyMySQL […]","protected":false},"author":3,"featured_media":937219,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/937216"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=937216"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/937216\/revisions"}],"predecessor-version":[{"id":937220,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/937216\/revisions\/937220"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/937219"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=937216"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=937216"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=937216"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}