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• How to serialize a Linq to Sql object graph without hiding the child's "Parent" member

  - by Richard B

  Without hiding the Child object's reference to the Parent object, has anyone been able to use an XmlSerializer() object to move a Linq to SQL object to an XML document, or is the only appropriate way of handling this to create a custom serialization/deserialization class to handle moving the data to/from the xml document? I don't like the idea of hiding the child object's reference to the parent object is why I'm asking. Thx.

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• What is the result of this SQL query?

  - by Martin

  I'm working on a mock exam paper at the moment, however I have no set of correct answers and I'm not sure what the correct answer of this SQL query is. Given a table: foo, bar a , 1 b , 3 a , 2 c , 1 and the query: SELECT foo, sum(bar) FROM table GROUP BY foo The two ways I can see this going are either: a 3 a 3 b 3 c 1 or a 3 b 3 c 1 Thanks.

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• what if system crashes when i type SQL command

  - by user323422

  I have some doubt as follows We are UPDATING a field in SQL and ALTER the row also.After giving the COMMIT command the system is crashed.Wat will happen to the commands given,whether it will UPDATE and ALTER the table r not?

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• SQL - sub count

  - by Andy Clarke

  Hi I've got some SQL ... SELECT AdviceNo, Registration FROM tblSalesDetail that produces something like ... ADV00001, ABC123 ADV00001, CDE564 ADV00002, FGE432 ADV00003, HUY789 ADV00003, MJS532 ADV00003, JFY428 Can anyone tell me how I'd adjust it to see the following please? ADV00001, ABC123, 1 ADV00001, CDE564, 2 ADV00002, FGE432, 1 ADV00003, HUY789, 1 ADV00003, MJS532, 2 ADV00003, JFY428, 3

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• Difference between SQL Server and Oracle 'User'

  - by BeginnerAmongBeginners

  Are there any differences between a user in SQL Server and one in Oracle? If so, what are they? Thanks in advance.

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• SQL Server 2000 pivot without temporary tables?

  - by Apocatastasis

  Hi. I'm trying to pivot some data in SQL Server 2000, but the user that runs the application only have read/write permissions. I've looked the solutions posted here, but all involving create/destroy temporary tables.

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• How do I prevent sql injection with php and mysql

  - by herrturtur

  I have a form into which the visitor can enter data, and I want to store this data in a mysql database via the $_POST variable. What do I need to prevent sql injection?

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• problem with IN clause in SQL

  - by user179056

  Hello, We have observed that there seems to be a maximum number of ids/variables which one can pass in the IN clause of SQL as comma seperated values. To avoid this we are storing all the ids in a table and doing a SELECT within the IN clause. This however means extra database operations to store and retrieve ids. Is there any other way to use IN without SELECT? regards Sameer

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• Agregate rows in Oracle SQL statement

  - by kilikopela

  Hi, I have a table of items stored this way : A1 | B1 A1 | B2 A1 | B3 A2 | B1 A2 | B4 ... And I need to retrieve with a SQL Query : A1 | B1, B2, B3 A2 | B1, B4 ...

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• SQL Select -> product -> comments -> user

  - by user1492716

  thanks for yout time helping on this ;) I'm new to SQL and wish to solve somethign in just one query and i dont know how to do it.- Basically I've a table of products, a table of users and a table of comments, linked by products.id - comments.pid and user.id - comments.uid , i wish to know what is the best practice to create just 1 query and get all products with child comments, including username.

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• Show Detailed Error in SQL Profiler

  - by AlwaysBeCoding

  Is there any way showing the detailed exception for String or binary data would be truncated. I use LINQ to SQL and i cant figure out which column is that!? Tried numerous things but i get the same meaningless error i got from within Visual Studio. Also I use .NET 3.5 SP1, but errors are still returned useless.

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• Translate LINQ to sql statement

  - by zielu1

  Hi, I want to translate LINQ expression tree to SQL statement and I don't want to write my own code for this. Example: var query = from c in Customers where c.Country == "UK" && c.City == "London" select c); To SELECT ... FROM Customers AS c WHERE c.Country = "UK" AND c.City = "London" I know DataContext.Log, but I want to use: query.ToSqlStatementString() Thanks

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• Embedding SQL Server into a .NET application

  - by Leszek Laszka

  Hey, I've just finished writing a VB.NET application. Now I want to package the executable and the database ofcourse into a single installer file. I tried using QSetup, InstallShield to make SQL Server embedded into the setup file, and finally after hours of try&fail I have no idea. Anyone?

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• what is index in sql server?

  - by Surya sasidhar

  Hi, what is index in sql can u explain or any reference to understand clearly. where should i use the index. I search in stackoverflow but it is not clear for me. thank you

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• convert to UDF from select statement

  - by jeff

  How would one go about converting this into a UDF? I'll pass the product_id to the UDF. Running SQL 2k5 SELECT sum(qty) as qty, product_id FROM vProductQuantity WHERE product_id = @product_id GROUP BY product_id

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• Select random line in SQL database

  - by Jensen

  Hi, I would like to select a random line in my database. I saw this solution on a website: SELECT column FROM table ORDER BY RAND() LIMIT 1 This SQL query run but someone said me that it was a non performant query. Is there another solution ? Thx

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• [SQL server] How to insert artificial data into a select statement

  - by user149578

  Hi guys: Suppose we got a original query as follows: SELECT A, B, C FROM tblA Now, I need to additional artificial rows like SELECT 'Kyala', B, C FROM tblA when, for example, C = 100 to be inserted into the resultset. How could I achieve it using a single SQL instead of relying on table variable or temp table?

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• what are the uses of the different join operations in sql

  - by varunthacker

  what are the uses of the different join operations in sql? Like i want to know why do we need the different inner and outer joins?

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• sql delete from rows value

  - by gloris

  The database includes a table with a rows: html/css/java/php How with sql query delete "java"? The result would be: html/css/php

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• mssql Is it possible to get procedure or table creation and last alter date?

  - by Woland

  mssql Is it possible to get procedure or table creation and last alter date? If it is then how do to it? Ms sql 2005 server

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• Problem with user logins after db Restore

  - by JJgates

  I have two SQL 2005 instances that reside on different networks. I need to backup a database from instance A and restore it to a database in instance B on a weekly basis so that both databases hold the same data. After the restore, logins SIDS on database B are changed and therefore users can't log into database B and connection strings for the web application it supports are broken. Is there a work around for this? Thanks.

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• How to reverse a string (SQL Server 2005, SET BASED)

  - by Newbie

  E.g. Declare @str varchar2(20) Set @str = 'A Student' Select Reverse(@str) Output: tnedutS A Expected being: Student A The output(using Reverse) is as expected. But my requirement is the one described. Help needed with SET BASED. I am using SQL Server 2005

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• what is a candidate row in SQL?

  - by JuiceBerry123

  What is a candidate row when talking about Oracle and SQL? Using it in a sentence would be as such: "The candidate row is fetched from the table specified in the outer query."

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• How to reverse a string(SQL SERVER 2005, SET BASED)

  - by Newbie

  E.g. Declare @str varchar2(20) Set @str = 'A Student' Select Reverse(@str) Output: tnedutS A Expected being: Student A The output(using Reverse) is as expected. But my requirement is the one described. Help needed with SET BASED. I am using SQL SERVER 2005

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• Edit all views and stored precedures, find and replace?

  - by johnboy

  Is there an easy way to do a find and replace on a string in every view and stored procedure in my SQL Server database. I need to replace something like 'X United Kingdom' with 'X(UK)'.

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