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• problem with join SQL Server 2000

  - by eyalb

  I have 3 tables - Items, Props, Items_To_Props i need to return all items that match all properties that i send example items 1 2 3 4 props T1 T2 T3 items_to_props 1 T1 1 T2 1 T3 2 T1 3 T1 when i send T1,T2 i need to get only item 1

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• Can netezza database handle procedures?

  - by san6086

  Hi I am having Netezza Database. I am querying the tables through DB visualiser. Since my table creation involves complex, I am interested to use procedures but I am unable to write it in DBvisualiser. I am confused whether the problem is with the tool that I use or in Netezza? Please advice

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• How to refer to a text in an Ms Access table?

  - by manuel

  I want to refer to a data cell, which if it is equals to some string, it will do something. The codes: If ds.Tables(0).Rows(i)("Status") = "Reserved" Then MessageBox.Show("Can't reserve") End If Is this the correct way to do this? Because I failed doing so..

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• What is a hash map in programming and where can it be used

  - by Saif Bechan

  I have often heard people talking about hashing and hash maps and hash tables. I wanted to know what they are and where you can best use them for.

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• use a variable for table name in mysql sproc

  - by Kyle

  I'm trying to pass a table name into my mysql stored procedure to use this sproc to select off of different tables but it's not working... this is what I"m trying: CREATE PROCEDURE `usp_SelectFromTables`( IN TableName varchar(100) ) BEGIN SELECT * FROM @TableName; END I've also tried it w/o the @ sign and that just tells me that TableName doesn't exist...which I know :)

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• data to be saved in SQLite and want to retrive data from there

  - by Mona

  In android, is it possible that we insert our database in SQLite and get back that data on our EditText boxes. I want to get data from database and populate it in my application activity. How can i do that. I want to save, update and delete my database in SQLite and most important i want to get data from database that is saved in SQLite tables. How can it be possible. Kindly guide. I will be thankfull to you

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• Foreign Keys Duplicated in DataGridView

  - by John Doe

  I created a Windows Forms Application to which I added a DataGridView and LINQ to SQL Classes from one of my databases. I can successfully bind one of my database's tables to my DataGridView: var dataSource = from c in _db.NetworkedEquipments select c; dataGridView1.DataSource = dataSource; However, the foreign keys get duplicated, that is, the columns appear twice. How can I prevent this?

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• how Do I list all table names in SQL Server using T-SQL?

  - by shrimpy

  SELECT name FROM sys.databases -- this can list all database name in the server user database SELECT * FROM INFORMATION_SCHEMA.TABLES -- these two line can list the table for one particular database But how can I output the results like below? Database Table --------- ------------- db1 t1 db1 t2 db2 t1 ... ...

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• Move row from one table to another?

  - by lance

  I have two tables with the same column definitions. I need to move (not copy) a row from one table to another. Before I go off and use INSERT INTO/DELETE (in a transaction), is there a smarter way? SQL Server 2005

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• Hibernate one to one with multiple columns

  - by Erdem Emekligil

  How can i bind two columns, using @OneToOne annotation? Lets say I've 2 tables A and B. Table A: id1 (primary key) id2 (pk) other columns Table B: id1 (pk) id2 (pk) other columns In class A i want to write something like this: @OneToOne(fetch = FetchType.EAGER, targetEntity = B.class) @JoinColumn(name = "id1 and id2", referencedColumnName = "id1 and id2") private B b; Is it possible to do this using annotations? Thanks.

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• C++ constant reference lifetime

  - by aaa

  hello I have code that looks like this: class T {}; class container { const T &first, T &second; container(const T&first, const T & second); }; class adapter : T {}; container(adapter(), adapter()); I thought lifetime of constant reference would be lifetime of container. However, it appears otherwise, adapter object is destroyed after container is created, leading dangling reference. What is the correct lifetime? how to correctly implement binding temporary object to class member reference? Thanks

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• use a sql select statement to get parameters for 2nd select statement

  - by diver-d

  Hi there, I am trying to write a sql statement that I have 2 tables Store & StoreTransactions. My first select command looks like SELECT [StoreID],[ParentStoreID] FROM Store Very simple stuff. How do I take the returned StoreID's and use them for my 2nd select statement? SELECT [StoreTransactionID],[TransactionDate],[StoreID] FROM StoreTransactions WHERE StoreID = returned values from the above query Any help would be great!

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• How to warn for the use of unset variables in a korn shell script

  - by Lepu

  Is there any way to throw errors or warnings in a korn shell script to prevent the use of unset variables ? Let's assume I have a temporary folder that I want to remove. TEMP_FILES_DIR='/app/myapp/tmp' rm -Rf $TEMP_FILE_DIR #notice the misspelling How to prevent this kind of mistakes before they actually happen? I know the script should check for file existence and empty string before attempting to remove, this is just a silly example to illustrate a mistake that could have been avoided with some warnings. I don't know if this feature exists in ksh. If it does exist, how do you turn it on?

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• Append Results from two queries and output as a single table.

  - by tHeSiD

  I have two queries that I have to run, I cannon join them But their resultant tables have the same structrure. For example I have select * from products where producttype=magazine select * from products where producttype = book I have to combine the result of these two queries, and then output it as one single result. I have to do this inside a stored procedure. PS These are just examples I provided, i have a complex table structure. The main thing is I cannot join them.

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• What is best tool to compare two MSSQL databases (schema and data)?

  - by tomaszs

  I would like to compare two SQL Server databases including schema (table structure) and data in tables too. What is best tool to do this?

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• Trouble understanding Java map Entry sets

  - by Jake Sellers

  I'm looking at a java hangman game here: https://github.com/leleah/EvilHangman/blob/master/EvilHangman.java The code in particular is this: Iterator<Entry<List<Integer>, Set<String>>> k = partitions.entrySet().iterator(); while (k.hasNext()) { Entry<?, ?> pair = (Entry<?, ?>)k.next(); int sizeOfSet = ((Set<String>)pair.getValue()).size(); if (sizeOfSet > biggestPartitionSize) { biggestPartitionSize = sizeOfSet; } } Now my question. My google foo is weak I guess, I cannot find much on Entry sets other than the java doc itself. Is is just a temporary copy of the map? And I cannot find any info at all on the syntax: Entry<?, ?> Can anyone explain or point me toward an explanation of what is going on with those question marks? Thanks in advanced.

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• how does sql count work?

  - by ria

  I would like to understand how exactly does sql count work. Is it a whole table scan that happens or is it some property of the table that is read. However I feel a table scan would be an overhead in case of huge tables with lots of records.

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• Installer package for program that uses JDBC to connect to MySQL....

  - by eli1987

  I have an installer wizard thing called 'install creator'. I want to include my mySQL database into the installer or find another way that the user, upon installation, can just use my database. Prob is-not everyone has MySQL installed on the computer and even then, the user doesn't know the name of the database or my password. Somehow the database must be created automatically upon install, and for my purposes, some of the tables created. How can one do this. Thanks

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• Update a column based on a field from another table

  - by Sergio

  Hi: I'd like to update values in one table based on corresponding values from other tables. Say you want to update prices of pieces provided by one specific manufacturer whose name is in the table Manufacturers with the Pieces table containing only the id of the manufacturer. I've seen several solutions for MySQL here and for MS SQL Server here but none of them seems to work in SQLite. Any suggestion?

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• How can I join conditionally in LINQ queries?

  - by Steve Crane

  If I have two tables; Drivers keyed by DriverId and Trips with foreign keys DriverId and CoDriverId, and I want to find all trips where a driver was either the driver or co-driver I could code this in Transact-SQL as select d.DriverId, t.TripId from Trips t inner join Drivers d on t.DriverId = d.DriverId or t.CoDriverId = d.DriverId How could this be coded as a LINQ query?

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• There is a JavaScript error in my rails application!

  - by Small Wolf

  As the title said, I got a problem! i encountered the "RJS Error:[object error]",the code in my application is page << "#{hidden_print("#{url_for(:controller => 'tables', :action => 'dispatch', :id => id, :pop => true, :print =>true)}")} " the method hidden_print is def hidden_print(url) "window.parent.headFrame.document.all.iframe_helper.src = '#{url}';" end

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• How do I keep a count of undefined strings within a loop using PHP?

  - by mike

  I'm using a loop within a loop to try to generate keyword combinations and also find the ones that have been used the most. My outside loop just queries a list of keywords (lets use "chicago" as our first keyword, 3 records were found). The inside loop finds all the records in the "posts" table where keyword = "chicago". Within this loop, I need to generate strings based on info I found in the database. Which, would look something like "chicago bulls", "chicago bears", "chicago cubs" etc... I know how to do everything up until this point, but how do I temporary hold these generated strings and count how many times they have been found within the 3 records?

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• MSSQL using SSH-tunnel from Visual Studio

  - by pbt

  Hi, I recently contacted a web host regarding support for external database access to a Microsoft SQL Database included in a package they offer. They replied saying that it is only possible with an SSH-tunnel. Is it possible to connect to a MS SQL database in Visual Studio using an SSH-tunnel? It is important for me to be able to access the database from my local machine (for debugging, generating LINQ classes, editing tables, etc). Or, how should I go about working with their database?

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• Copying a Table in MySQL and including the Primary Key

  - by Alan Storm

  I have an ancient code snippet I use for copying tables in MySQL. CREATE TABLE new_table (select * from old_table); This works great, with one exception. It doesn't copy the primary key or other table indexes. Is there any way to copy a table in MySQL AND include the indexes/primary key??

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• Latex: Make \listoffigures look like \listoftables or \lstlistoflistings

  - by Aetius

  I've got a list of listings at the end of my document following my list of tables and my list of figures. The thing that is really annoying me is that they look the same except the list of listings doesn't leave a line gap between chapters. I've had a good google around and people have asked the same question but don't seem to have had any response. Is their any reason why they don't look the same and it be made to look concise?

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