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2. Order a MySQL table by two columns - Stack Overflow

   stackoverflow.com/questions/514943

   8. This maybe help somebody who is looking for the way to sort table by two columns, but in paralel way. This means to combine two sorts using aggregate sorting function. It's very useful when for example retrieving articles using fulltext search and also concerning the article publish date. This is only example, but if you catch the idea you ...

3. sql - MySql conditional order by - Stack Overflow

   stackoverflow.com/questions/2258376

   27. You can also use the following: SELECT *. FROM my_table. WHERE 1. ORDER BY price=0, price, id; The part 'price=0' will be 1 for items with zero price, 0 for items with non-zero price. As the default sort order is ASC, non-zero items are now placed first. The next bit of the order-by clause means that non-zero items are then sorted by price ...

4. sql - Using union and order by clause in mysql - Stack Overflow

   stackoverflow.com/questions/3531251

   To apply ORDER BY or LIMIT to an individual SELECT, place the clause inside the parentheses that enclose the SELECT: (SELECT a FROM t1 WHERE a=10 AND B=1 ORDER BY a LIMIT 10) UNION. (SELECT a FROM t2 WHERE a=11 AND B=2 ORDER BY a LIMIT 10); However, use of ORDER BY for individual SELECT statements implies nothing about the order in which the ...

5. How does MySQL's ORDER BY RAND() work? - Stack Overflow

   stackoverflow.com/questions/2663710

   SELECT * FROM Table T JOIN (SELECT CEIL(MAX(ID)*RAND()) AS ID FROM Table) AS x ON T.ID >= x.ID LIMIT 1; While common ORDER BY RAND () takes 30-40 seconds on my test table, his query does the work in 0.1 seconds. He explains how this functions in the blog so I'll just skip this and finally move to the odd thing.

6. MySQL query / clause execution order - Stack Overflow

   stackoverflow.com/questions/24127932

   order by (select @mysqlorder := CONCAT(@mysqlorder," ORDERBY ")); select @mysqlorder; And here is the output from above mysql query, hope you can figure out the mysql execution of a SELECT query :-. FROM JOIN1 JOIN2 WHERE ON2 ON1 ORDERBY GROUPBY SELECT WHERE ON2 ON1 ORDERBY GROUPBY SELECT HAVING HAVING.

7. How to rearrange MySQL columns? - Stack Overflow

   stackoverflow.com/questions/2934312

   1. Here is the sql query: ALTER TABLE table_name MODIFY COLUMN misplaced_column Column-definition AFTER other_column; Here in Column-definition is full column definition. To see the column definition if you are using phpMyAdmin click on structure tab. Then click on change link on desired column.

8. sql - MySQL "Group By" and "Order By" - Stack Overflow

   stackoverflow.com/questions/1066453

   If one is using MySQL 5.6, or MySQL 5.7 with ONLY_FULL_GROUP_BY, the correct (deterministic) query is: SELECT incomingEmails.* FROM ( SELECT fromEmail, MAX(timestamp) `timestamp` FROM incomingEmails GROUP BY fromEmail ) filtered_incomingEmails JOIN incomingEmails USING (fromEmail, timestamp) GROUP BY fromEmail, timestamp

9. mysql - Sorting by date & time in descending order? - Stack...

   stackoverflow.com/questions/9511882

   If you mean you want to sort by date first then by names. SELECT id, name, form_id, DATE(updated_at) as date. FROM wp_frm_items. WHERE user_id = 11 && form_id=9. ORDER BY updated_at DESC,name ASC. This will sort the records by date first, then by names. answered Mar 1, 2012 at 7:07. dejjub-AIS dejjub-AIS.

10. How to define a custom ORDER BY order in mySQL - Stack Overflow

    stackoverflow.com/questions/9378613

    You have a couple of options offhand, the first is to change Language to be ENUM (assuming this is possible, and you only expect a few variations) If you specify it as ENUM('ENU','JPN','DAN') then ORDER Language ASC will order in the order you specify. The second will involve a case somewhere, i.e. WHEN 'ENU' THEN 3.

11. sql - ROW_NUMBER() in MySQL - Stack Overflow

    stackoverflow.com/questions/1895110

    In addition, several existing aggregate functions now can be used as window functions; for example, SUM () and AVG (). ROW_NUMBER () over_clause : Returns the number of the current row within its partition. Rows numbers range from 1 to the number of partition rows. ORDER BY affects the order in which rows are numbered.