SQL select without showing joining columns in Joins
How do i exclude duplicate columns of joining keys when we do a join? ...
join
How to select two seperate non-overlapping tables in MySQL.
Hi there. I'm looking for a query to select rows from two different tables, keeping the column names the same (I did find one result here for selecting from two different tables, but it merged the column names to have an easier query). I need to keep the original column names, but have two different tables existing within the new, larger...
What is the best way to String.Join a non-string array?
What is a shorthand way to String.Join a non-string array as in the second example? string[] names = { "Joe", "Roger", "John" }; Console.WriteLine("the names are {0}", String.Join(", ", names)); //ok decimal[] prices = { 39.99M, 29.99m, 29.99m, 19.99m, 49.99m }; Console.WriteLine("the prices are {0}", String.Join(", ", prices)); //bad ...
Entity Framework: join method
Hi, I spend enough time already so I need help from stackoverflow. Here is an entity Entity: Asset Field: AssetVersionID (int) PK Field: AssetID (int) FK Field: ReleaseTimestamp (DateTime) My task is to select assets with unique AssetID and with latest ReleaseTimestamp. basically I need function like this public IQueryable<Asset> ...
Mysql result not returned if count 0
I've got access levels and pages. Pages <=many-to-many=> Levels I need to count how many opened pages does each level has. But the levels doesn't happen to come out if pageCount is 0. SELECT levels.id, levels.name, COUNT(pages.id) as pageCount FROM levels LEFT JOIN page_levels ON levels.id = page_levels.level_id LEFT JO...
Doing joins with SubSonic/ActiveRecord easily?
Hello, I am using SubSonic with the ActiveRecord template. I like it pretty well so far but can not figure out how to do a join query. I have read this link but the generated class templates it creates does not have anything of type IColumn Is there something I am missing here? Also, I am using SubSonic 3.0 ...
joining the same table twice on different columns
I've got a user table and a complaint table. The complaint table has the following structure: [opened_by] [complaint_text] [closed_by] (user_id) (text) (user_id) (user_id) (text) (user_id) (user_id) (text) (user_id) All users, both the complainers and complaint-resolvers are loca...
how to show friend list in home page,using php my sql?
if an user login in his/her home page then he needs to see his friennds, i hane one table name frienddetails containing userid and friendid,and another table name profile containg userid,name.now how can i show user's friend in the home page? the friend details need to show in user home page,but that is in the table named profile. ...
Map-Side Join Algorithm for MapReduce
Hi Everyone, I am trying to use the Hadoop's Map-side join using CompositeInputFormat but I get an IOException: "Unmatched ')'". I guess there may be a problem in the format of my input file. I have formatted the input files manually in such a way that keys are in sorted order in both the input files. Is this correct or do I have to pas...
join 2 tables in mysql, return rows that don't relate
I have 2 tables: table 1: questions (id, question, date) table 2: answers (id, question_id, answer, date) a question can have more than 1 answer, some questions don't have answers. I want to output only unanswered questions a query like "SELECT * FROM questions,answers WHERE questions.id!=answers.question_id group by questions.id" do...
MySQL dynamic JOIN
Let's say that I have these tables on my db: items categories weapons shields swords And I need to create a join like this: SELECT items.*, {swords}.* FROM items INNER JOIN categories ON categories.id = items.category_id # <-- here I know that the item is a sword INNER JOIN {swords} ON {swords}.item_id = item.id WHERE items.id = ...
Fetching fetch the first occurance from the result.
Hello, I have a oracle sql select distinct tab1.col1, tab2.col1 from table1 tab1 join table2 tab2 on tab1.col1 = tab2.col1 Here i get the as expected in terms of distinct values. For Example : The result rows are 1 2 3 4 5 6 Now i want to add one more join for table3. so my sql is select distinct ...
How do I join AAC/.m4a files via CLI (Mac OS X)
I need to quickly join a number of separate m4a files in to one large one. Is there any way to do so via CLI on in Mac OS X? ...
How do I translate a simple boolean statement to SQL?
I have the following database table with information about people, diseases, and drugs: PERSON_T DISEASE_T DRUG_T ========= ========== ======== PERSON_ID DISEASE_ID DRUG_ID GENDER PERSON_ID PERSON_ID NAME DISEASE_ST...
Translate LINQ Inline query to extension method
I can't seem to figure out the LINQ Join extension method... I have the following LINQ inline query: var cc = from z in zipcodes join c in contactsRepo.UDF_SelectSome() on z.Zipcode equals c.Zip What is the equivalent of this in LINQ-extension-method syntax? ...
Can this Mysql query be amended to display invoice only once for the same idinvoice
The query below SELECT <output name="c.name" title="Name" />, <output name="c.reference" title="Reference No." />, <output name="i.idinvoice" title="Invoice ID" />, <output replace="(SUM(v.quantity * s.charges))/COUNT(i.idinvoice)" />As Invoice <output replace="p.amount" />AS Amount, <output replace="p.idpayment" title="Payment ID" />, ...
Joins in SQL Server 2000 or 2005
Hi. I am trying to understand how JOINS work on SQL Server 2000 and 2005 SPECIFICALLY. In general, I understand how inner joins, left joins and right joins work. However, all the articles that I've read, explain it with examples, but are not specific to any RDBMS. So now I am confused to the different types of joins, which are just ...
How to do linq-to-IEnumerable-style joins in F#
I've got a project that I'm trying to convert to F#, with a fair amount of linq-to-IEnumerable style queries in it. I'm curious what the most elegant way of doing a join of multiple lists would be in F#. For instance if I have a bunch of C# code like the following var joinedList = from val1 in list1 j...
Codeigniter table Join then Display Tags Problem
I have a problem that concerns blog posts and displaying the tag words from another table. I seem to be able to pull the info out of the tables fine, however when I try to display the posts and the tags, I get one tag per post. In other words if I have 7 tags for a post, I get 7 iteration's of that post each with one tag instead of 1 po...
Joining 2 mysql queries
I have two tables which I need to select all rows from where the userid is $userid then sort them. I tried to use join but I couldn't even really get started on how to get it right. Can anybody point me in the right direction as to how to make these into 1 query? $result1 = mysql_query("SELECT * FROM paypal_sub_info WHERE ...