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  • mysql批量生成外部文件的脚本

    DELIMITER $$

    DROP PROCEDURE IF EXISTS `travian_cc_s2_2`.`p_test`$$

    CREATE DEFINER=`postrock`@`58.246.137.218` PROCEDURE `p_test`()
    begin
    declare l_db_name varchar(300);
    declare l_file_name varchar(300);
    declare l_cur cursor for select schema_name from information_schema.schemata where schema_name like 'travian_%' and substring(schema_name,-1,2)=2;
    open l_cur;
    fetch l_cur into l_db_name;
    while (l_db_name is not null) do
    set @a=concat(l_db_name,'user_reg_inf','.txt');
    set @sql=concat('Select *,''0'' as PASSPORT_CODE,''Travian'' as GAME,''CN1'' as SERVER_NAME from (SELECT a.uid as uid,a.name as user_id,FROM_UNIXTIME( b.signup,''%Y-%m-%d %H:%i:%S'') as user_reg_time
    FROM ',l_db_name,'.s_details2 a LEFT JOIN  ',l_db_name,'.s_details1 b
    ON a.uid=b.uid) a left join
    (SELECT uid,ip as reg_ip,min(zeit) FROM  ',l_db_name,'.x_login
    WHERE zeit between  (unix_timestamp(CURDATE())-86400) AND (unix_timestamp(CURDATE()))
    GROUP BY uid)
     b on a.uid=b.uid  into outfile','"','/home/chenyl/',@a,'"');
    prepare stmt from @sql;
    execute stmt;
    deallocate prepare stmt;
    fetch l_cur into l_db_name;
    end while;
    close l_cur;
    end$$

    DELIMITER ;

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  • 原文地址:https://www.cnblogs.com/zeromyth/p/1448973.html
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