spider-college

目前已爬取2651条高校基本信息，31个城市的199条历年高考分数线,

使用事项

在爬去全国高校基本信息时，会出现重复的数据,请执行下面的删除重复记录sql语句进行排除。

删除重复记录值

DELETE
FROM
    college
WHERE
    name IN (
    SELECT name FROM (
        SELECT
            name
        FROM
            college
        GROUP BY
            name
        HAVING
            COUNT(id) > 1
    ) AS tab1
    )
AND id NOT IN (
    SELECT id FROM (
        SELECT
        MIN(id) AS id 
        FROM
        college
        GROUP BY
        name
        HAVING
        COUNT(id) > 1
    ) AS tab2
)

数据库MySQL操作

SELECT * FROM score where city = '河南'    
SELECT * FROM college where name = '四川文理学院'
SELECT s.category,s.score_line,s.score_list FROM city c,score s  WHERE s.city=c.name and s.city = '河南'