mssql数据库转mysql

import pyodbc
import mysql.connector
import csv

# 连接到MSSQL数据库
mssql_conn = pyodbc.connect('DRIVER={SQL Server};SERVER=your_server;DATABASE=your_db;UID=your_user;PWD=your_password')
mssql_cursor = mssql_conn.cursor()

# 执行查询并导出数据
mssql_cursor.execute("SELECT * FROM your_table")
rows = mssql_cursor.fetchall()

# 将数据写入CSV文件
with open('output.csv', 'w', newline='', encoding='utf-8') as csvfile:
    csv_writer = csv.writer(csvfile)
    csv_writer.writerow([i[0] for i in mssql_cursor.description])  # 写入列名
    csv_writer.writerows(rows)

# 关闭MSSQL连接
mssql_cursor.close()
mssql_conn.close()

# 连接到MySQL数据库
mysql_conn = mysql.connector.connect(user='your_user', password='your_password', host='your_host', database='your_db')
mysql_cursor = mysql_conn.cursor()

# 创建MySQL表
create_table_sql = """
CREATE TABLE IF NOT EXISTS your_table (
    column1 INT,
    column2 VARCHAR(255),
    ...
);
"""
mysql_cursor.execute(create_table_sql)

# 从CSV文件导入数据到MySQL
with open('output.csv', 'r', encoding='utf-8') as csvfile:
    csv_reader = csv.reader(csvfile)
    next(csv_reader)  # 跳过列名
    for row in csv_reader:
        insert_sql = "INSERT INTO your_table (column1, column2, ...) VALUES (%s, %s, ...)"
        mysql_cursor.execute(insert_sql, row)

# 提交事务并关闭连接
mysql_conn.commit()
mysql_cursor.close()
mysql_conn.close()