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• Hash Join require Full Table Scan

  - by Pedro Magalhaes

  So, I want to know if to make a Hash Join between two tables is necessary to make a full table scan on the collumns? If i want to join COL1 wiht COL2, and COL1 is smaller, the It makes a full scan in COL1 creating a Hashmap then makes a full scan in COL2 using the sabe hash function. Is this correct?

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• JSP/Servlet CRUD form with special input field based on join table relationship

  - by user1701467

  There's database with a bunch of tables that are joined with join tables. E.g. Members and Division are joined with MembersDivisions table. JSP/Servlet login functionality has been developed, but now the CRUD functionality needs to be implemented and I was unable to find any tutorials about it, especially involving the join table(when creating new division you can add members to it, or add more to the existing one). Maybe someone could, theoretically, explain how to do the Division part of the CRUD web form?

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• How to merge two icons together?

  - by demoncodemonkey

  I've got two 16x16 RGB/A .ICO icon files, each loaded into a separate System.Drawing.Icon object. How would you create a new Icon object containing the merge of the two icons (one overlaid on top of the other)?

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• TF14083: The item {0} has a pending merge from the current merge operation, please resolve and check

  - by danswain

  Getting this when trying to merge in TFS2008 any ideas on how to resolve it. There are No pending changes on either source or destination branches. Thanks

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• How to merge two single column csv files with linux commands

  - by user1328191

  I was wondering how to merge two single column csv files into one file where the resulting file will contain two columns. file1.csv    first_name    chris    ben    jerry file2.csv    last_name    smith    white    perry result.csv    first_name,last_name    chris,smith    ben,white    jerry,perry Thanks

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• Excel VBA merge many columns into one on separate rows

  - by gorussgo

  I have a large array of cells in multiple columns that need to be combined into one large column with a new row for each cell. I do NOT want to merge the contents of any cells.

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• git push merge error, but git pull is already up-to-date

  - by Jasie

  I do: git commit . git push error: Entry 'file.php' not uptodate. Cannot merge. Then I do git pull Already up-to-date. What do I do? I just want to get the latest version from the remote copy, and overwrite anything on my local copy.

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• How to merge a 64 by 64 cell into a 1 by 1 cell

  - by HH

  I have a 64 by 64 cell and how do I merge it back into a 1 by 1 cell? Each cell is a 8 by 8 double.

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• SQL Select table1.columa as table1.columb

  - by Lukas Oppermann

  I am working on a database join and I want to do the following: Select tabel_one.id, tabel_one.title, tabel_one.content, table_two.value as table_two.key from tabel_one Join table_two ON table_two.id = table_one.id .... The Important part is: table_two.value as table_two.key Is there a way this could work?

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• SQL: Join vs. subquery

  - by Col. Shrapnel

  I am an old-school MySQL user and always preferred JOIN over sub-query. But nowadays everyone uses sub-query and I hate it, dunno why. Though I've lack of theoretical knowledge to judge myself if there are any difference. Well, I am curious if sub-query as good as join and there is no thing to worry about?

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• convert sql to linq sample

  - by Jeroen Breuer

  Hello, I've got a sql statement, but I can't get it working in linq. Can someone show me how I can write the following sql statement as linq? SELECT * FROM mobileApplication LEFT JOIN videoMobile ON mobileApplication.id = videoMobile.mobileApplicationId AND videoMobile.videoId = 257 It's a left join with a where statement on the right table. It works in sql server 2005, but I'd like to write it in linq.

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• Cross Join 'n' times a table

  - by SDReyes

  It is possible to write a generic function/procedure/select/somethingElse to cross-join a table against himself 'n' times? (yes, 'n' is a given parameter : ) How would you do it? Example Having this table: Value ------- 1 2 3 cross join it 2 times, would return: Value | Value ------------------ 1 1 1 2 1 3 2 1 2 2 2 3 3 1 3 2 3 3

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• SVN Merge, then rebase.

  - by Nix

  I am trying to find the proper way to reintegrate the changes in my SVN branch to the trunk, and the rebase. I have successfully merged my changes from the branch back to the trunk using, reintegrate merge http://mybranch into C:\code\trunk Now i need to recreate my development branch from the trunk. What is the best way to do this?

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• i have some problem with left join JPQL

  - by Dora

  there is something wrong with ths way i use left join, and i dont understand what am i doing wrong. can you see it? select distinct r.globalRuleId, r.ruleId, sv.validFrom, pm.moduleId, nvl(min(rai.failedOnRegistration),0) from TRules r, TSlaVersions sv, TModuleFormulas mv, TPendingModule pm, left join TRulesAdditionalInfo rai on r.ruleId = rai.ruleId where r.slaVersionId = sv.slaVersionId and r.formulaId = mv.pk.formulaId and mv.pk.moduleId = pm.moduleId group by r.globalRuleId, r.ruleId, sv.validFrom, pm.moduleId order by pm.moduleId

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• Join tables to get sold products

  - by latvian

  Hi, I am joining two tables 'sales/order_item_collection' and 'sales/orders' by 'order_id', so that afterward i can filter sold products by 'store_id' and 'product_name' Here is the code: $orderTable = Mage::getSingleton('core/resource')-getTableName('sales/order'); $itemsCollection= Mage::getResourceModel('sales/order_item_collection') -join(array('ord'=$orderTable),'e.order_id = ord.entity_id'); Why is this join not working? Thank you

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• how two merge two images in black berry

  - by Master

  hi i want to merge two images in blackberry. one image is a big image and other image is a small one. position of small image will be define by developer. what are the possible ways can any one help me out it's urgent. thanks

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• SQL Server Update with left join and group by having

  - by Marty Trenouth

  I'm making an update to our datbase and would like to update rows that do not have existing items in another table. I can join the tables together, but am having trouble grouping the table to get a count of the number of rows UPDATE dpt SET dpt.active = 0 FROM DEPARTMENT dpt LEFT JOIN DOCUMENTS doc on dpt.ID = doc.DepartmentID GROUP BY dpt.ID HAVING COUNT(doc.ID) = 0 What should I be doing?

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• linq join query

  - by SamB09

  Hi, im trying to do a join in linq , however for some reason i cant access the primary key of a table. It's the 'h.ProjectId' that doesn't seem to be accepted. The following error is given CW1.SearchWebService.Bid does not contain a definition for 'ProjectId' and no extention method 'ProjectId' accepting a first argument of type 'CW1SearchWebService.Bid' var allProjects = ctxt.Project.ToList() ; var allBids = ctxt.Bid.ToArray();// return all bids var projects = (from project in allProjects join h in allBids on project.ProjectId equals h.ProjectId

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• awk/sed/bash to merge data

  - by Kyle

  Trying to merge some data that I have. The input would look like so: foo bar foo baz boo abc def abc ghi And I would like the output to look like: foo bar baz boo abc def ghi I have some ideas using some arrays in a shell script, but I was looking for a more elegant or quicker solution.

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• [TortoiseSVN .NET] Unicode support on Merge functionality

  - by Ricky

  Hi folks: If anybody ever used TortoiseSVN to merge .NET resource files (.resx) from branch to trunk? From my experience, WinMerge fails to do the mergence of files of Unicode. Thank you.

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• Using subselect to accomplish LEFT JOIN

  - by Andre

  Is is possible to accomplish the equivalent of a LEFT JOIN with subselect where multiple columns are required. Here's what I mean. SELECT m.*, (SELECT * FROM model WHERE id = m.id LIMIT 1) AS models FROM make m As it stands now doing this gives me a 'Operand should contain 1 column(s)' error. Yes I know this is possible with LEFT JOIN, but I was told it was possible with subselect to I'm curious as to how it's done.

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• Merge Sort a Linked List

  - by Andrew Peters

  I was recently brushing up on some fundamentals and found merge sorting a linked list to be a pretty good challenge. If you have a good implementation then show it off here.

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• Advanced count and join in Rails

  - by trobrock

  I am try to find the top n number of categories as they relate to articles, there is a habtm relationship set up between the two. This is the SQL I want to execute, but am unsure of how to do this with ActiveRecord, aside from using the find_by_sql method. is there any way of doing this with ActiveRecord methods: SELECT "categories".id, "categories".name, count("articles".id) as counter FROM "categories" JOIN "articles_categories" ON "articles_categories".category_id = "categories".id JOIN "articles" ON "articles".id = "articles_categories".article_id GROUP BY "categories".id ORDER BY counter DESC LIMIT 5;

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• merge two binary images using Matlab

  - by Pier-alexandre Bouchard

  I need to create two different black binary rectangles using Matlab, to overlay a part of both and to extract the insertion. How can I overlay two binary images? -------|----------| | | 2 | | 1 |----|-----| | | |-----------| I created my two binary images using the false(X, Y) Matlab function. I dont find how to produce the merge the two images and to extract the insertion.

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• Using a join model to relate a model to itself

  - by Gabe Hollombe

  I have two models: User MentoringRelationship MentoringRelationship is a join model that has a mentor_id column and a mentee_id column (both of these reference user_ids from the users table). How can I specify a relation called 'mentees' on the User class that will return all of the users mentored by this user, using the MentoringRelationships join table? What relations do we need to declare in the User model and in the MentoringRelationship model?

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