MySQL选择更大的值以及“大于”子句？

Question

How to select only one row that has highest value in colum1 , also making sure that the selected colum1 value is greater-than n

SELECT * FROM thetable WHERE colum1 >= 150 ORDER BY amount LIMIT 1
//using limit to get 1 row
//using where to fulfill greathe-than criteria
//using order by to sort and get max one.

The above query is giving greater-than 150 row but not the maximum one of table, what is wrong in query?

Answer 1

You need to use max and having like this hypothetical query. Here we are getting the country with the highest number of branches which has more than 7 branches (8 or more):

SELECT country,MAX(no_of_branch)
FROM publisher
GROUP BY country
HAVING MAX(no_of_branch)>=8;

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