sql-order-by

问题 I have these rows y DB and I would like order by but in the below order with caracters and number. The colum Score is a varchar. WINNER and LOSER are in Score colum also. Score WINNER 100+ 100 90 80+ 80 50 LOSER 回答1: This approach converts the score value to a number when ordering. I tried it with your data, then with your data plus additional values, and it worked both times: SELECT score FROM myTable ORDER BY CASE WHEN score = 'WINNER' THEN 100000 WHEN score = 'LOSER' THEN -100000 WHEN

问题 I've been trying to order the ID's of the Objects contained in my Table. For this, I'm using the following hierarchy, which is based on the order of attributes within the 'IN' clause: ORDER BY First: ID's that match ALL the attributes: 'Solid' and 'Metal' and 'Red' Second: ID's that match the attributes: 'Solid' and 'Metal' Third: ID's that match just the attribute: 'Solid' Fourth: ID's that match attributes: 'Metal' and 'Red' Fifth: ID's that match just the attribute: 'Metal' Sixth: ID's

问题 I have an interesting problem here. But it is just for knowledge because I already solve it in a non elegant way. I have a table that have costumers and they can be holders or dependants and this relation is described as a family. Each family can have only a holder and 0-n dependants. A holder is identified by an H and a Dependant by a D. What I need is a way to order the data by name of holder and theirs dependants. So the sample data below idcostumer name idfamily relation 1 Natalie Portman

问题 Here is my query: SELECT name, usage_guidance, total_used_num FROM tags WHERE ( name LIKE CONCAT('%', ?, '%') OR usage_guidance LIKE CONCAT(?, '%') ) AND name NOT IN ($in) LIMIT 6 Now I want to order the result by name column .. I mean I want to put the matched results because of name LIKE CONCAT('%', ?, '%') condition in first, and then other results should be after them. How can I do that? 回答1: You would add the where conditions to the order by clause: order by (name like CONCAT('%', ?, '%'

问题 I already visited MySQL order by before group by for Single Group By it's working fine. I have issue with 2 group by columns. I have below table named "messages". Messages are comments of User's Posts id | posts_id | from_user_id | to_user_id | message_description | created_at ----------------------------------------------------------------------------- 1 1 1 2 test1 2016-09-06 10:00:00 2 1 1 2 test2 2016-09-06 11:00:00 3 1 4 2 test3 2016-09-06 09:00:00 4 1 4 2 test4 2016-09-06 15:00:00 5 2 1

问题 I just upgraded a MySQL 5.0 server to MySQL 5.5 and found that stored routines that worked before had broken. Difference: MySQL 5.5 seems to INSERT rows in an arbitrary order. So in the following code the ORDER BY clause has no effect. AFAIK, it used to have that in MySQL 5.0. INSERT INTO MyTable SELECT * FROM MyOtherTable ORDER BY Col1, Col2 DESC; People say that, by definition, order is irrelevant in INSERT s: Just use ORDER BY when using SELECT from the table. Problem is I use a cursor to

问题 I'm on Oracle and I need to use both, ORDER BY and ROWNUM , in one request. I need to double-nest my inner query, because I want to apply ORDER BY first and select with ROWNUM=1 afterwards . My data is filtered by O.ID on outmost level. However, I get an error in my inner query, because O.ID is an unknown identifier there. What I want: SELECT O.INSERTDATE OrderCreateDate, -- Determine delivery date (SELECT INSERTDATE FROM ( SELECT OP2.FK_ORDER, DD.ID, DD.INSERTDATE FROM MY_DELIVERYDATE_TABLE

问题 I have a PHP script that outputs a list of reviews in a table and orders them by the date they were submitted - (similar to have Trip Advisor ratings work). Below I have included how the table heading are set out: NAME || DATE || REVIEW || RATING Below I have listed the code: //run a query to find all the fields in the review table that belong to the specific hall, using the id in the url ($current_id) if ($r = $db->prepare("SELECT * FROM reviews WHERE hall_id = :current_id ORDER BY overall

问题 I state that we are talking about an event booking, so each event has two features by default: The date. which is enclosed within the meta_value given by the meta key: metakey_AMC_data Custom taxonomy Now the code I'm about to insert refers to the page of a taxonomy x, where all the events that have that taxonomy are displayed, and are sorted by date, which is recorded in the db format (dmy) and I have converted to (ymd) format Code to show all events that have a current date: <?php /*MOSTRA

问题 See this table. It contains a chat log with incoming and outgoing messages id | to_number | from_number |message | direction| type | generated_time 1 | +15005550004 | +16232950692 |Hai | OUTGOING | | 2019-07-12 15:13:00 2 | +16232950692 | +15005550004 |Hello | INCOMING | REVIEW | 2019-07-13 18:13:00 3 | +15005550004 | +16232950692 |How are you ? | OUTGOING | | 2019-07-13 21:15:00 4 | +15005550001 | +16232950692 |Good morning | OUTGOING | | 2019-07-12 12:13:00 5 | +16232950692 | +15005550001