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• sql query for fetching 10 rows with near values

  - by saurav

  Please help me with writing a sql query - I have a table with id, name and marks columns. If I arrange the table in ascending order of marks, how can I fetch 5 names whose marks are close to a particular name.

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• Does SQL Server CE 3.5 SP1 install everything?

  - by Vaccano

  I am trying to set up a device remotely. I found this link: http://www.microsoft.com/downloads/details.aspx?familyid=FCE9ABBF-F807-45D6-A457-AB5615001C8F&displaylang=en That has SQL Server CE 3.5 SP1. I read the whole page, and can't seem to find out for sure if SP1 is a full install or if it needs SQLServer CE 3.5 first. Does anyone know?

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• The order of a SQL Select statement without Order By clause

  - by Yousui

  As I know, from the relational database theory, a select statement without an order by clause should be considered has not particular order. But actually in SQL Server and Oracle (I've tested on those 2 platforms), if I query from a table without an order by clause multiple times, I always get the results in the same order. Does this behavior can be relied on? Anyone can help to explain a little? Thanks!

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• How do I Duplicate a MSSQL Symmetric Key

  - by rlb.usa

  We have a server with a database that has a symmetric key (Database - Security - Symmetric Key). We have a backup duplicate databases that we are using as a test databases, but we don't have this key in there. How can I duplicate this symmetric key and put it in the existing databases? It has to have the same value and key-name as the other one. This is on MS SQL Server 2008 .

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• In SQL Server changing column varchar(255) nvarchar

  - by JD

  Hi, I am using SQL server 2008 express and some of our columns are defined as varchar(255). Should I convert these columns to NvarChar(255) or nvarchar(max)? The reason I ask is I read that nvarchar(255) for unicode characters would actually store 1/2 the number of characters (since unicode characters are 2 bytes) whereas 255 with varchar() would allow me to store 255 characters (or is it 255 - 2 for the offset). Would there be any performance hits using nvarchar(max)? JDs

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• Performance difference if I UNION first, then put WHERE on unioned result set?

  - by Dennis

  In Microsoft SQL, is there any difference in performance between this: SELECT columns FROM table1 WHERE cond UNION SELECT columns FROM table2 WHERE cond and this: SELECT columns FROM ( SELECT columns FROM table1 UNION SELECT columns FROM table2 ) WHERE cond ?

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• SQL query through an intermediate table

  - by Bryan

  Given the following tables: Recipes | id | name | 1 | 'chocolate cream pie' | 2 | 'banana cream pie' | 3 | 'chocolate banana surprise' Ingredients | id | name | 1 | 'banana' | 2 | 'cream' | 3 | 'chocolate' RecipeIngredients | recipe_id | ingredient_id | 1 | 2 | 1 | 3 | 2 | 1 | 2 | 2 | 3 | 1 | 3 | 3 How do I construct a SQL query to find recipes where ingredients.name = 'chocolate' and ingredients.name = 'cream'?

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• LINQ timed out while the same query works great in SQL

  - by oshafran

  Hi I am getting Exception of type 'System.Web.HttpUnhandledException' was thrown. ---> System.Data.SqlClient.SqlException (0x80131904): Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding. When I run the SAME query in the SQL query program I get result within seconds, and in LINQ it takes forever and fails. What can cause this??? Thanks!

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• LINQ-to-SQL - C# - OnValidate()

  - by Mark Comix

  Hello, I have a system with 3 layers and I am using LINQ-to-SQL to persist. I want to validate if the description field of my object is empty. I am using partial classes and the method OnValidate(). If the field is empty, it throws an exception. Is this correct? What do I do after the exception to not close the form, letting the user continue working? Thank you very much Sorry for my poor english

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• SQL Code Smells

  - by Lijo

  Hi Team, Could you please list some of the bad practices in SQL, that novice people do? I have found the use of "WHILE loop" in scenarios which could be resolved using set operations. Another example is inserting data only if it does not exist. This can be achieved using LEFT OUTER JOIN. Some people go for "IF" Any other thoughts? Thanks Lijo

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• SQL : Select a dynamic number of rows as columns

  - by Clint

  I need to select static colums + a dynamic number of rows as columns in SQL TABLE 1 ------- HotelID BlockID BlockName TABLE 2 ------- BlockDate (unknown number of these) NumberOfRooms Desired Result Row ------------------ HotelID | BlockID | BlockName | 02/10/10 | 02/11/10 | 02/12/10 | ...N Where the date columns are the unknown number of BlockDate rows.

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• SQL reporting services reference

  - by SonOfOmer

  Hi everyone, I want to add service reference to SQL reporting services on local machine. In Reporting Service Configuration Manager under Web Service URL tab I have report service URL exposed, I have tried to add web reference to project with that Web Reference URL, but it can not be found. Please tell me am I missing something or is this right way to to? Thanks a lot.

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• Use '=' or LIKE to compare strings in SQL?

  - by furtelwart

  Hi! There's the (almost religious) discussion, if you should use LIKE or '=' to compare strings in SQL statements. Are there reasons to use LIKE? Are there reasons to use '='? Performance? Readability? Thanks in advance!

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• Subsonic 2.2 and SQL CE

  - by Giuseppe

  Hi, anybody use Subsonic with SQL Server CE 3.5 ? I try but get an error with Substage 2.2, error talking about PK_TABLE. My tables have primary keys and relations. Can someone help me ? By, Giuseppe.

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• How can I Duplicate a MSSQL Symmetric Key?

  - by rlb.usa

  We have a server with a database that has a symmetric key (Database - Security - Symmetric Key). We have a backup duplicate databases that we are using as a test databases, but we don't have this key in there. How can I duplicate this symmetric key (or make a new one exactly like the old) and put it in the existing databases? It has to have the same value and key-name as the other one. This is on MS SQL Server (edit) 2008 .

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• Multiple Language (English, Dutch, Finnish, French, Hungarian, Bangla, Italian,) in ASP.NET with SQL

  - by Nahid

  I am developing a web Application in ASP.NET 3.5 with SQL Server 2008. I need Multiple Language such as English, Dutch, Finnish etc. I can do it by using System.Resources and System.Globalization. but I can't convert the Language which data come from database. How can I solve it ???

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• C# SQL Data Adapter System.Data.StrongTypingException

  - by René

  I get my data from SQL to Dataset with Fill. It's just one table with two columns (CategoryId (int) and CategoryName (varchar)). When I look at my dataset after fill method, CategoryId Columns seems to be correct. But in the CategoryName I have a *System.Data.StrongTypingExceptio*n. What could that mean? Any Ideas?

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• XKCD SQL injection - please explain

  - by Blankman

  Just looking at: What does this SQL do: Robert'); DROP TABLE STUDENTS; -- I know both ' and -- are for comments, but doesn't the word DROP get commented as well since it is part of the same line?

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• How to create a table type in Sql Server 2005

  - by Nikola Stjelja

  Hi, I'm trying to create a table type in sql server 2005. Here is what my code looks like: CREATE TYPE NameResourceType AS TABLE ( ID int, [Value] Varchar(256) ) GO I receive the following error: Incorrect syntax near the keyword 'AS'.

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• How to show hierarchial data in a dropdownlist.

  - by vaibhav

  I have a table in sqlserver 2005. I want to show all domain name in a dropdownlist maintaing the same hierarchy. i.e Law Engineering --civil --Mechanical Medical --Dental ----Cavity --MBBS I need to append '--' according to the domain level. Is it possible using a sql query. or alternatively can I have any other control to show this data.

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• Exporting SQL Server Databases for offline use

  - by WedTM

  I have a desktop application (C# .NET 3.5) that uses a SQL server for it's database. I have had a request from the client, however, to make it possible to export the database as it stands, and be able to use it on a laptop without connectivity. They understand that updates to the parent server will not be reflected in these offline clients. Is there a way I can just save the DataSet's to a binary form and write them to a disk and send those files to the offline clients.

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• PostgreSQL or MS SQL Server?

  - by mmiika

  I'm considering using PostgreSQL with a .Net web app. Basically 3 reasons: Mature Geo Queries Small footprint + Linux Price I'm wondering a bit about tools though, SQL Server Profiler and query plans and performance monitors have been helpful. How is this world with Postgres? Some other things I should consider? Edit: Will most likely use NHibernate as ORM

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• What are naming conventions for SQL Server ?

  - by newbie

  I need to create database for SQL Server, what kind of naming convention I sohuld use? 1) Table names could be : customer, Customer, CUSTOMER 2) Field names could be : customer_id, CustomerId, CustomerID, CUSTOMER_ID, customerid, CUSTOMERID and so on... Is there any official suggestion for naming conventions or what is msot common way to name tables and fields?

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• INNER JOIN Returns Too Many Results

  - by Alon

  I have the following SQL: SELECT * FROM [Database].dbo.[TagsPerItem] INNER JOIN [Database].dbo.[Tag] ON [Tag].Id = [TagsPerItem].TagId WHERE [Tag].Name IN ('home', 'car') and it returns: Id TagId ItemId ItemTable Id Name SiteId 1 1 1 Content 1 home 1 2 1 2 Content 1 home 1 3 1 3 Content 1 home 1 4 2 4 Content 2 car 1 5 2 5 Content 2 car 1 6 2 12 Content 2 car 1 instead of just two records, which these names are "home" and "car". How can I fix it? Thanks.

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• How Can I do this??

  - by ramadan2050

  I have a table records(ID, ParentID) containg this data ID ParentID 1 null 2 1 3 2 3 4 4 5 6 null 7 6 If you draw this table in hierarchy as a family 1,2,3,4,5 will be related to each other. I want to find a way, where I can pass an ID like 3 it give me the others family members using SQL or using C# 3 - result 1,2,4,5 2 - result 1,3,4,5 6 - result 7 and so on I want to find my parent and his parents and childs and my child and his childs LIKE THE EXAMPLES

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