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  • 数据库命令

    # 插入数据,来源于另一张表的查询

    mysql> insert into dealer_copy1 select * from dealer_copy;

     # 查询不包含的数据

    SELECT * FROM smallshop WHERE business_scope NOT LIKE '%食品%' AND business_scope NOT LIKE '%酒%' AND business_scope NOT LIKE '%饮料%' AND business_scope NOT LIKE '%乳制品%'
    AND business_scope NOT LIKE '%运输%' AND business_scope NOT LIKE '%同城配送%'

     # 删除不包含的数据

    DELETE FROM dealer WHERE business_scope NOT LIKE '%食品%' AND business_scope NOT LIKE '%酒%' AND business_scope NOT LIKE '%饮料%' AND business_scope NOT LIKE '%乳制品%'
    AND business_scope NOT LIKE '%运输%' AND business_scope NOT LIKE '%同城配送%'

    # 查询包含的数据

    SELECT business_scope FROM smallshop WHERE business_scope LIKE '%食品%' OR business_scope  LIKE '%酒%' OR business_scope  LIKE '%饮料%' OR business_scope LIKE '%乳制品%'
    OR business_scope  LIKE '%运输%' OR business_scope  LIKE '%同城配送%'

    # 合并2个表的数据

    UPDATE smallshop SET id=id+117412
    SELECT COUNT(1) FROM smallshop

    INSERT INTO search_system.smallshop
    SELECT * FROM smallshop

    # 数据去重

    SELECT * FROM search_system.logistics WHERE company_name in (SELECT company_name from search_system.smallshop)

    #去重

    SELECT count(1) from search_system.smallshop GROUP BY company_name

    SELECT company_name from search_system.smallshop WHERE company_name LIKE '%亳州市%'

    SELECT * from search_system.smallshop WHERE company_name LIKE '%亳州市%' GROUP BY company_name

    #去重后插入新表

    INSERT INTO search_system.smallshop_copy SELECT * from search_system.smallshop WHERE company_name LIKE '%亳州市%' GROUP BY company_name

    # 操作记录

    SELECT * FROM search_system.logistics WHERE company_name not in (SELECT company_name from search_system.smallshop)

    SELECT company_name from search_system.smallshop GROUP BY company_name

    INSERT INTO search_system.smallshop_copy SELECT * from search_system.smallshop WHERE company_name LIKE '%亳州市%' GROUP BY company_name

    SELECT * from search_system.smallshop_copy WHERE company_name= '亳州市谯城区如意酒水商行' GROUP BY company_name
    SELECT * from search_system.smallshop_copy GROUP BY company_name

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  • 原文地址:https://www.cnblogs.com/liuyoushui/p/9073387.html
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