sql-order-by

I have a (C#) class called Hit with an ItemID (int) and a Score (int) property. I skip the rest of the details to keep it short. Now in my code, I have a huge List on which I need to do the following select (into a new List): I need to get the sum of all Hit.Score's for each individual Hit.ItemID, ordered by Score. So if I have the following items in the original list ItemID=3, Score=5 ItemID=1, Score=5 ItemID=2, Score=5 ItemID=3, Score=1 ItemID=1, Score=8 ItemID=2, Score=10 the resulting List should contain the following: ItemID=2, Score=15 ItemID=1, Score=13 ItemID=3, Score=6 Can somebody

I have 3 tables: people, groups and memberships. Memberships is a join table between people and groups, and have 3 columns: personId, groupId and description (text). I want to select entries from the memberships table depending on a groupId but sorting the result by the names of people associated to the found memberships (name is a column of people table) SELECT * FROM "memberships" WHERE ("memberships".groupId = 32) ORDER BY (?????) Is it possible to achieve this in one single query? Join to the people table and then order by the field that you want. SELECT m.* FROM "memberships" AS m JOIN

If I write select ename, to_char(hiredate,'fmDay') as "Day" order by "Day"; Then it sorts the result based on Day like; from Friday, then Monday and last Wednesday, like sorting by characters. But I want to sort it by day of the week; from Monday to Sunday. You're getting it in the order you are because you're ordering by a string (and this wouldn't work because you're not selecting from anything). You could order by the format model used to create the day of the week in numeric form, D , but as Sunday is 1 in this I would recommend using mod() to make this work. i.e. assuming the table create

I have the following statement: SELECT IMPORTID,Region,RefObligor,SUM(NOTIONAL) AS SUM_NOTIONAL From Positions Where ID = :importID GROUP BY IMPORTID, Region,RefObligor Order BY IMPORTID, Region,RefObligor There exists some extra columns in table Positions that I want as output for "display data" but I don't want in the group by statement. These are Site, Desk Final output would have the following columns: IMPORTID,Region,Site,Desk,RefObligor,SUM(NOTIONAL) AS SUM_NOTIONAL Ideally I'd want the data sorted like: Order BY IMPORTID,Region,Site,Desk,RefObligor How to achieve this? It does not make

I need to have an order by functionality inside a stored procedure. A value is posted to a webservice and based on that value I have to order the results in a certain way i.e. When ColName is posted order by ColName When ColName2 is posted order by ColName2 I was looking into using Case but I am getting an error: Incorrect syntax near '@version' ORDER BY CASE WHEN @OrderBy ='Seller (code)' THEN A_SNO WHEN @OrderBy ='Lot' THEN A_LOTNO WHEN @OrderBy ='Ring Type' THEN RN_NUM WHEN @OrderBy ='Aim Error Code' THEN AimRejectionCode ELSE A_SNO END DECLARE @version varchar(50) SET @version = (SELECT

I have a table, let's call it "foos", with almost 6 million records in it. I am running the following query: SELECT "foos".* FROM "foos" INNER JOIN "bars" ON "foos".bar_id = "bars".id WHERE (("bars".baz_id = 13266)) ORDER BY "foos"."id" DESC LIMIT 5 OFFSET 0; This query takes a very long time to run (Rails times out while running it). There is an index on all IDs in question. The curious part is, if I remove either the ORDER BY clause or the LIMIT clause, it runs almost instantaneously. I'm assuming that the presence of both ORDER BY and LIMIT are making PostgreSQL make some bad choices in