join

Dealing w/ Sqlite Join results in a cursor

I have a one-many relationship in my local Sqlite db. Pretty basic stuff. When I do my left outer join I get back results that look like this: the resulting cursor has multiple rows that look like this: A1.id | A1.column1 | A1.column2 | B1.a_id_fk | B1.column1 | B1.column2 A1.id | A1.column1 | A1.column2 | B2.a_id_fk | B2.column1 | B...

MySQL join not returning rows

I'm attempting to create an anti-bruteforcer for the login page on a website. Unfortunately, my query is not working as expected. I would like to test how many times an IP address has attempted to login, and also return the ID of the user for my next step in the login process. However, I'm having a problem with the query... for one thi...

100+ tables to joined

Hi guys, I was wondering if anyone ever had a change to measure how a would 100 joined tables perform? Each table would have an ID column with primary index and all table are 1:1 related. It is a common problem within many data entry applications where we need to collect 1000+ data points. One solution would be to have one big table w...

MySQL cross table regular expression match

I have a web application and I am working on engine that analyzes referals. Now I have table with pageviews along with referes that looks something like this: pv_id referer ------------------------------------------------------------ 5531854534 http://www.google.com/search?ie=UTF-8... 8161876343 http://google.cn/search?searc...

SQL: many-to-many relationship, IN condition

I have a table called transactions with a many-to-many relationship to items through the items_transactions table. I want to do something like this: SELECT "transactions".* FROM "transactions" INNER JOIN "items_transactions" ON "items_transactions".transaction_id = "transactions".id INNER JOIN "items" ON "items"....

CakePHP 3-level-deep model associatons

Hi, I am relatively new to CakePHP, I am doing fine with the documentation, but I've been trying to find a way out to this problem for weeks and I don't seem to find the solution, I am sure it is easy and maybe even automagicaly doable, but I just don't know how to find it (maybe I don't know the jargon for these kind of things) My mode...

mySQL: Deleting with JOIN ?

Hi everybody, This problem is giving me a real headache. I have two tables in my database that solves sorting of categories with the help of a design called "Closure table". The first table is called categories, and the other one is named categoriesPaths. Categories is simply a language-based table: id | name ---------------- 0 | C...

How can I identify columns when SELECTing from multiple tables with JDBC?

I have two tables that I join on the id-column, they look like: +-------+ | users | +----+--+---+ | id | name | +----+------+ +-------+ | posts | +-------+------+---------+ | id | user_id | message | +----+---------+---------+ And now I want to select all posts and include the username, with: SELECT * FROM posts, users WHERE user_id...

Left Outer Join Result Issue Using Linq to Sql

We have the following query to give us a left outer join: (from t0 in context.accounts join t1 in context.addresses on new { New_AccountCode = t0.new_accountcode, New_SourceSystem = t0.new_sourcesystem, New_Mailing = t0.new_MailingAddressString } equals new { New_AccountCode = t1.new_AccountCode,...

Is there a better way to do it : Joins on different Datatables ?

I want to perform a JOIN on two Datatables in a Dataset. For example, I am working on the AdventureWorks database. I need data from the tables [Person].[Address] and [Person].[StateProvince] and once the data is in the corresponding Datatables, I have to perform a JOIN on StateProvinceID column. Data Structure - Address {Address,A_Stat...

DQL Query fails

I've got 2 tables in an MySQL DB, im using doctrine 1.2 and symfony 1.4.4 Installedbase and Spare Installedbase: ib_id app_id location and Spare: spare_id app_id amount Now i want to join the to tables to show how many of the app are in the spare. e.g. $q = self::createQuery("l") ->select('i.*, s.*') ->from('InstalledBase i, Spa...

MySQL select specific cols slower than select *

My MySQL is not strong, so please forgive any rookie mistakes. Short version: SELECT locId,count,avg FROM destAgg_geo is significantly slower than SELECT * from destAgg_geo prtt.destAgg is a table keyed on dst_ip (PRIMARY) mysql> describe prtt.destAgg; +---------+------------------+------+-----+---------+-------+ | Field | Type ...

NHibernate: SELECT MAX() with JOIN

I have a Vendor. Every Vendor has several Reservations, with a ReservationDate on it. I want a list of Vendors that have not made a reservation yet today. In SQL I would do something like this: SELECT v.Id, MAX(r.ReservationDate) AS MaxDate FROM Vendor v INNER JOIN DailyReservation r ON v.Id = r.Vendor_Id GROUP BY v.Id HAVING MAX(r....

Inner join on regexes

I have an inner join on regular expressions - it is very slow. Is there any easy way to speed this up? I am using postgres. FROM A inner join B ON trim(lower(replace(replace(replace(B.enginequery,',',' '),'"',' '),'+',' '))) = trim(lower(A.keyphrase)) OR trim(lower(replace(replace(replace(B.enginequery,',',' '),'"',' ')...

How Can i Create This Complicated Query ?

Hi, I have 3 tables: projects, skills and project_skills. In projects table i hold project's general data. Second table skills i hold skill id and skill name also i have projects_skills table which is hold project's skill relationships. Here is scheme of tables: CREATE TABLE IF NOT EXISTS `project_skills` ( `project_id` int(11) NOT NU...

mySQL: Joining three tables - how?

Hi everybody, I have the following query in my application. It works well, but I need it to also contain the number of products that are associated with each manufacturer. The current query: SELECT * FROM (`manufacturers`) JOIN `languages` ON `manufacturers`.`lang` = `languages`.`id` ORDER BY `languages`.`id` asc, `id` asc My prod...

SQL Syntax for Complex Scenario (Deals)

hello everyone i have a complex query to be written but cannot figure it out here are my tables Sales --one row for each sale made in the system SaleProducts --one row for each line in the invoice (similar to OrderDetails in NW) Deals --a list of possible deals/offers that a sale may be entitled to DealProducts --a list ...

Help creating a SQL Query

Somewhat new to SQL queries and I need a little help with my join. I am supplied with gid For each of these I need to grab name from table wp_ngg_gallery then join in table wp_ngg_pictures and grab field filename limit 1 order DESC by field imagedate Anyone able to help? ...

Combining two-part SQL query into one query

Hello, I have a SQL query that I'm currently solving by doing two queries. I am wondering if there is a way to do it in a single query that makes it more efficient. Consider two tables: Transaction_Entries table and Transactions, each one defined below: Transactions - id - reference_number (varchar) Transaction_Entries - id - acco...

Sql query listing Fathers and childs with joins, how to distinct them?

Having those tables: table_n1: | t1_id | t1_name | | 1 | foo | table_n2: | t2_id | t1_id | t2_name | | 1 | 1 | bar | I need a query that gives me two result: | names | | foo | | foo / bar | But i cant figure out the right way. I wrote this one: SELECT CONCAT_WS(' / ', table_n1.t1_name, table_...