Search Results

Search found 40744 results on 1630 pages for 'sql interview questions a'.

Page 280/1630 | < Previous Page | 276 277 278 279 280 281 282 283 284 285 286 287  | Next Page >

• How to test if a MS SQL 2008 database can serve 200 concurent users

  - by sh00

  I have a MS SQL 2008 database in 3NF. I must check if the db can support many concurent users. Which is the best method ? [Is there any free tool to do this ?] Thank you very much.

  Read the article

• Linq to Sql statement for multiple aggregate values in single expression

  - by Jeff Langston

  How would I write a linq to sql statement for the following tsql? select count(*), sum(Amount), avg(Amount), min(Amount), max(Amount) from TableName

  Read the article

• Sql-server Database query help

  - by menacheb

  Hi, I have a project in C# with a Sql-server Database. In that database I have a table named 'Process' and columns named 'process_name', 'Full_Name' and 'Version' (all of the type:nvarchar(50)). I want to write a query wich will add the new process, only if it doesn't exist in the table yet. How can I do that? Many thanks,

  Read the article

• Formating SQL XML-field in gridview

  - by Godisemo

  Hi, I have a SQL table with some normal fields and one xml-type field. I need help with formatting the xml-type field. I want to display the the information in a gridview in asp.net but i want to apply formatting to it. Does anyone know how I need to do? Thanks. PS. If it's to any help, I use a linqdatasource as source to my gridview.

  Read the article

• Dynamic sql vs stored procedures - pros and cons?

  - by skyeagle

  I have read many strong views (both for and against) SPs or DS. I am writing a query engine in C++ (mySQL backend for now, though I may decide to go with a C++ ORM). I cant decide whether to write a SP, or to dynamically creat the SQL and send the query to the db engine.# Any tips on how to decide?

  Read the article

• node to traverse cannot be null (Hibernate SQL)

  - by tiswas

  I'm performing a SQL query through hibernate, which looks like: SELECT thi FROM track_history_items thi JOIN artists art ON thi.artist_id = art.id WHERE thi.type = "TrackBroadcast" GROUP BY art.name ORDER thi.createdAt DESC but I'm getting the message that 'Node to traverse cannot be null!'. Anyone know what could be causing this? --EDIT-- I'm pretty sure that this problem is being caused by the possibility of artist_id to be null. However, I can't prevent this, so can I just skip the rows track_history_item rows which have a null artist_id?

  Read the article

• SQL Problem, WHERE Statment is wrong

  - by stck777

  $sql = 'SELECT id, DATE_FORMAT(date,"%d.%m.%Y - %H.%i Uhr") AS dat, user1, user2, p_user1, p_user2, be_user1, be_user2, win FROM kok_1on1_matches WHERE user1="$user" OR user2="$user"'; What is wrong with the WHERE statement?

  Read the article

• SQL Error with Order By in Subquery

  - by cagin

  Hi all. i m working sql server 2005. My query is: SELECT ( SELECT COUNT(1) FROM Seanslar WHERE MONTH(tarihi) = 4 GROUP BY refKlinik_id ORDER BY refKlinik_id) as dorduncuay And the error: The ORDER BY clause is invalid in views, inline functions, derived tables, subqueries, and common table expressions, unless TOP or FOR XML is also specified. How can i use order by in a sub query?

  Read the article

• SQL qn:- comparing data in rows

  - by rayhan

  hi, i would like to compare numeric data in rows. for eg, i have a table that has a column as such:- Number ====== 1.88 9.99 8.76 9.88 I want to compare 2nd value, 3rd value, 4th value to the 1st value. And then 3rd, 4th value to the 2nd. then 4th to 3rd. How can i construct an sql to do this?

  Read the article

• .Net best approach SQL Server 2008 incremental update based on up to date version

  - by MicMit

  Assuming daily certain up to date database is produced via loading from various sources. Changes need to be applied to historical database based on uid, new records will added , non existing will be softly deleted , some will be updated. Is Ado.Net and Sql statements the most appropriate technology for the task like this ?

  Read the article

• Which is more flexible in regards to database changes, EF 4 or Linq to SQL

  - by JBeckton

  Reading about both Linq to SQL and Entity Framework I have developed the impression that EF is more suitable for apps that get data from multiple data sources. But as I am reading about MVC2 models I see an example where EF is more loosely coupled with your data model. If I have to add or remove some columns from a table then what is involved in updating my model or DAL with each of these implementations?

  Read the article

• How to write SQL query as named_scope?

  - by keruilin

  How can I translate the following SQL query into a named_scope? select users.*, sum(total_quantity * total_price) as points_spent from orders join users on users.id = orders.user_id where pay_type = 'points' group by user_id order by points_spent desc Thanks!

  Read the article

• How to use split in SQL Server 2005?

  - by meenakshi

  Table column has values with comma separated for ex: (1,2,3) How to split this like 1 2 3 or 1 2 3 in SQL Server 2005.

  Read the article

• How to configure reference to be deleted on parent table update?

  - by abatishchev

  I have two tables: info: ID, fee_id and fee: ID, amount and a reference between them (SQL Server 2008): ALTER TABLE info WITH CHECK ADD CONSTRAINT FK_info_fee FOREIGN KEY(fee_id) REFERENCES fee (ID) ALTER TABLE info CHECK CONSTRAINT FK_info_fee GO How to configure this reference that way so a record in fee will be deleted if info.fee_id becomes NULL

  Read the article

• Write a SQL to meet my requirement.

  - by rgksugan

  I have been trying to solve this problem for a lot of days. But wouldn't. Please help me. I need a SQL to list product_code, product_name, qty_sold, last_order_date for all the products that have been sold within a date range sorted by the number of quantity sold. My Table structure: tbl_product(product_id,product_code,product_name) tbl_order_detail(order_item_id,order_id,product_id,quantity) tbl_order(order_id,order_date)

  Read the article

• is there any different in Connection string between SQL server Authentication and Windows Authentic

  - by Gold

  hi is there any different in Connection string between SQL server Authentication and Windows Authentication if yes, can i get a sample connection string for this ? thank's in advance

  Read the article

• Send mail in asp.net without smtp details

  - by Zerotoinfinite

  Hi Experts, I am using asp.net and C#. I have deployed my application on the server and now I come to know that my server don't have a ip address, is their any way I could send sms without smtp details. I can use bot asp.net3.5 with C# or SQL Server 2005 to send mail. Thanks in advance

  Read the article

• Store an image in a SQL Server CE database

  - by Vaccano

  Does any one know of an example on how to store an image in a SQL Server CE database? What data type should the column be? (I am guessing binary.) I use Linq-To-Datasets. Is it possible using that to put the image into the database and pull it out again later? Thanks for any advice.

  Read the article

• MS SQL to PostgreSql

  - by Dezigo

  I need to create a trigger in MS SQL. Trigger works: If I found new line where T = 'A'; than.. add this line to PostgreSQL table. Is it possible to create it,without software? (I know how to create trigger,but how to create connection between two servers..?

  Read the article

• compiling a linq to sql query

  - by frenchie

  Hi, I have queries that are built like this: public static List<MyObjectModel> GetData (int MyParam) { using (DataModel MyModelDC = new DataModel()) { var MyQuery = from.... select MyObjectModel { ...} } return new List<MyObjectModel> (MyQuery) } } It seems that using compiled linq-to-sql queries are about as fast as stored procedures and so the goal is to convert these queries into compiled queries. What's the syntax for this? Thanks.

  Read the article

• change string in mssql to abbreviate

  - by jeff

  How do I return the everything in a string from a sql query before a certain character? My data looks like this: HD TV HM45VM - HDTV widescreen television set with 45" lcd I want to limit or truncate the string to include everything before the dash. So the final result would be "HD TV HM45VM"

  Read the article

• Best naming for a column in a SQL Server table

  - by Lance Fisher

  Which of the following three options would you choose for a column name in a SQL Server table, and why? YearToDateWages YTDWages YtdWages Follow up: SSN Ssn SocialSecurityNumber

  Read the article

• xml serialization and for xml sql server

  - by Hadad

  Hello, I've a SQL statement that returns a xml result, for a serialized object.I want to add a attribute to an element, that reflects the type of the object "xsi:type=table" but i don't know how?

  Read the article

• displaying sql exception in JSF

  - by user234194

  I was wondering how would I be able to show SQL errors generated during update, delete, select * etc in JSF. Any help would be appreciated.

  Read the article

• SQL clone record with a unique index

  - by Milhous

  Is there a clean way of cloning a record in SQL that has an index(auto increment). I want to clone all the fields except the index. I currently have to enumerate every field, and use that in an insert select, and I would rather not explicitly list all of the fields, as they may change over time.

  Read the article

< Previous Page | 276 277 278 279 280 281 282 283 284 285 286 287  | Next Page >