sql-order-by

I want to update the top 10 values of a column in table. I have three columns; id , account and accountrank . To get the top 10 values I can use the following: SELECT * FROM accountrecords ORDER BY account DESC LIMIT 10; What I would like to do is to set the value in accountrank to be a series of 1 - 10 , based on the magnitude of account . Is this possible to do in PostgreSQL? WITH cte AS ( SELECT id, row_number() OVER (ORDER BY account DESC NULLS LAST) AS rn FROM accountrecords ORDER BY account DESC NULLS LAST LIMIT 10 ) UPDATE accountrecords a SET accountrank = cte.rn FROM cte WHERE cte.id

I am doing project in cakephp . I want to write below query in cakephp Style. I've written 50% . Please help me $this->Login->find('all') SELECT * FROM login ORDER BY FIELD(profile_type, 'Basic', 'Premium') DESC; Plese try this $this->Login->find('all', array( 'order'=>array('FIELD(Login.profile_type, "basic", "premium") DESC') )); mensch You can pass options to the find method : $this->Login->find('all', array( 'order' => "FIELD(Login.profile_type, 'Basic', 'Premium') DESC" )); LUIS TOBIO GUTIERREZ Please, try this: $response = $this->Login->find('all', array('order'=>array('Login.profile

I have been trying to use dynamic LINQ to Entity in my application for specifying the OrderBy attribute at runtime. However when using the code as described in the majority of documentation: var query = context.Customer.OrderBy("Name"); I received the following exception: System.Data.EntitySqlException: 'Name' could not be resolved in the current scope or context. Make sure that all referenced variables are in scope, that required schemas are loaded, and that namespaces are referenced correctly. After much searching I found this MSDN page: http://msdn.microsoft.com/en-us/library/bb358828.aspx

I've found many questions that ask for amount of appearences, but none that ask the very same as I wish to do. A dynamically generated (prepared-statement) query will result in something like this: SELECT * FROM products WHERE ( title LIKE ? AND title LIKE ? ) AND ( content LIKE ? OR content LIKE ? ) AND ( subtitle LIKE ? AND author LIKE ? ) ORDER BY relevance LIMIT ?,? The amount of words entered, (and so the amount of LIKE ) are for title,content and author a variable amount (depending on the search query). Now I've added a ORDER BY relevance . But I wish this order to be the amount of

TABLEA JobCode Job1 Job2 Job3 zip ------- ---- ---- ---- ---------- F F S NULL 90030 F F S NULL 90031 F F S NULL 90031 F F S NULL 90034 F F NULL 90034 F F S NULL 90034 F F S NULL 90034 F F NULL 90034 F F S NULL 90035 F F NULL 90035-4640 EXPECTED RESULTS: JobCode Job1 Job2 Job3 zip ------- ---- ---- ---- ---------- F F S NULL 90034 F F NULL 90034 F F S NULL 90034 F F S NULL 90034 F F NULL 90034 F F S NULL 90031 F F S NULL 90031 F F S NULL 90030 F F S NULL 90035 F F NULL 90035-4640 Those with the SAME Zip should be ON top, then the rest follows. ORDER BY Zip does not work because it DOES sort by

I have a simple relationship between User and Donations in that a user has many donations, and a donation belongs to a user. What I'd like to do is get a list of users, ordered by the most recent donations. Here's what I'm trying: First I want to get the total number of uniq users, which is working as expected: > User.joins(:donations).order('donations.created_at').uniq.count (3.2ms) SELECT DISTINCT COUNT(DISTINCT "users"."id") FROM "users" INNER JOIN "donations" ON "donations"."user_id" = "users"."id" => 384 Next, when I remove the count method, I get an error that "ORDER BY expressions must