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52 lines
947 B
52 lines
947 B
# -*- coding: utf-8 -*-
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'''
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获取长度小于等于 6 的数据集
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'''
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import psycopg2
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# 数据库连接参数
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db_config = {
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'host': '192.168.31.201',
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'port': 5432,
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'database': 'alpha',
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'user': 'jack',
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'password': 'aaaAAA111'
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}
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results = []
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try:
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# 连接数据库
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conn = psycopg2.connect(**db_config)
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# 创建游标
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cur = conn.cursor()
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# SQL 查询语句
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sql = """ select * from data_sets"""
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# 执行查询
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cur.execute(sql)
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# 获取所有结果
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rows = cur.fetchall()
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# 打印结果
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for row in rows:
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if len(row[1]) <= 6:
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results.append({
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"name": row[1],
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"description": row[2],
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})
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# 关闭游标和连接
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cur.close()
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conn.close()
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except Exception as e:
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print("数据库连接或查询出错:", e)
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for result in results:
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print(result)
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print(f"本次搜索共 {len(results)} 条数据") |