importpsycopg2frompsycopg2.extrasimportRealDictCursor# 数据库连接参数conn_params={'dbname':'your_database','user':'your_username','password':'your_password','host':'localhost','port':5432}deffetch_data_as_dict(query):withconn.cursor(cursor_factory=RealDictCursor)ascursor:cursor.execute(query)re...
Psycopg将tuple适配为record，而AsIs则执行Python的字符串替换操作。
# 需要导入模块: import psycopg2 [as 别名]# 或者: from psycopg2 importpool[as 别名]defget_db_connection():""" psycopg2 connection context manager. Fetch a connection from the connectionpooland release it. """try: connection =pool.getconn()yieldconnectionfinally:pool.putconn(connection) 开发者I...
self.assertEqual(cursor.fetchall(), ([1,'hello'], [2,'ciao'])) conn.close()finally: Postgresql.clear_cache() 开发者ID:tk0miya,项目名称:testing.postgresql,代码行数:22,代码来源:test_postgresql.py 示例3: process ▲点赞 7▼ # 需要导入模块: import psycopg2 [as 别名]# 或者: from psycop...
Psycopg将tuple适配为record，而AsIs则执行Python的字符串替换操作。
self.row_factory = row_factory def fetchone(self): May 9, 2009 Fixed bug in RealDictCursor when prefetching May 9, 2009Blame prior to change e1fae0f, made on May 9, 2009 81 if self._prefetch: Nov 17, 2020 Upgrade Python syntax with pyupgrade --py36-plus Nov 17, 2020Blame prior...
由于游标是con.cursor的返回值,你只需要模拟连接,然后适当地配置它。例如, query_result =[("field1a","field2a"), ("field1b","field2b")]with mock.patch('psycopg2.connect') as mock_connect: mock_connect.cursor.return_value.fetchall.return_value= query_resultsuper_cool_method()...
Psycopg2也支持许多额外的工具,例如psycopg2.extras模块。这个模块可以帮助连接到PostgreSQL数据库的开发者更方便地操作。 from psycopg2 import extras ... rows = [] cur.execute("SELECT * FROM exampletable;") for row in cur.fetchall(): rows.append(dict(zip([column.name for column in cur.description...
fetchone() except psycopg2.Error: except psycopg.Error: print("Can not execute sql(select_random).") return results @@ -40,7 +40,7 @@ def add_word(self, word: str) -> None: try: cursor.execute("INSERT INTO vocabulary(word) VALUES(%s);", (word,)) self.conn.commit() except ...
connection:asyncpg.connection.Connection=awaitasyncpg.connect(dsn="YourDatabaseDSN")# 多个参数sql="select * from student as s where s.name = $1 AND s.id = $2;"name="Peter"s_id=123results=awaitconnection.fetch(sql,name,s_id)# 多列执行sql="""INSERT INTO films (code, title, did, dat...