摘要：import psycopg2connection = psycopg2.connect( dbname='your_database', user='your_username', password='your_password', host='your_h
创建与 Postgres 数据库的连接：
import psycopg2connection = psycopg2.connect( dbname='your_database', user='your_username', password='your_password', host='your_host')创建数据库游标，以实现记录的遍历和操作：
cursor = connection.cursor从数据库中选择数据：
cursor.execute("SELECT * FROM your_table")使用游标获取数据：
records = cursor.fetchallfor record in records: print(record)将数据插入数据库中的表：
cursor.execute("INSERT INTO your_table (column1, column2) VALUES (%s, %s)", ('value1', 'value2'))connection.commit # Seal the transaction修改记录：
cursor.execute("UPDATE your_table SET column1 = %s WHERE column2 = %s", ('new_value', 'condition_value'))connection.commit删除表中的记录：
cursor.execute("DELETE FROM your_table WHERE condition_column = %s", ('condition_value',))connection.commit创建新表，定义其结构：
cursor.execute(""" CREATE TABLE your_new_table ( id SERIAL PRIMARY KEY, column1 VARCHAR(255), column2 INTEGER )""")connection.commit删除表：
cursor.execute("DROP TABLE if exists your_table")connection.committry: cursor.execute("your first transactional query") cursor.execute("your second transactional query") connection.commit # Commit if all is wellexcept Exception as e: connection.rollback # Rollback in case of any issue print(f"An error occurred: {e}")来源：自由坦荡的湖泊AI
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