Search Results

Search found 27584 results on 1104 pages for 'sql sever'.

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

Page 520/1104 | < Previous Page | 516 517 518 519 520 521 522 523 524 525 526 527  | Next Page >

  • DataGridView live display of datatable using virtual mode

    - by Chris
    I have a DataGridView that will display records (log entries) from a database. The amount of records that can exist at a time is very large. I would like to use the virtual mode feature of the DataGridView to display a page of data, and to minimize the amount of data that has to be transferred across a network at a given time. Polling for data is out of the question. There will be several clients running at a time, all of which are on the same network and viewing the records. If they all poll for data, the network will run very slowly. The data is read-only to the user; they won't be able to edit any of it, just view it. I need to know when updates occur in the database, and I need to update the screen with those updates accordingly using virtual mode. If a page of data a user is viewing contains data that has change, he/she will see those updates on that page. If updates were made to data in the database, but not in the data the user is viewing, then not much really changes on the user screen (Maybe just the scroll bar if records were added or removed). My current approach is using SQL server change tracking with the sync framework. Each client has a local SQL Server CE instance and database file that is kept in sync with the main database server. I use the information from the synchronization event to see if any changes were made to the main database and were sync'ed to the client. I need to use the DataGridView virtual mode here because I can't have thousands of records loaded into the DataGridView at once, otherwise memory usage goes through the roof. The main challenge right now is knowing how to use virtual mode to provide a seamless experience to the user by allowing them to scroll up and down through the records, and also have records update on the fly without interfering with the user inappropriately. Has anybody dealt with this issue before, and if so, where I can see how they did it? I've gone through some of the MSDN documentation and examples on virtual mode. So far, I haven't found documentation and/or examples on their site that explains how to do what I am trying to accomplish.

    Read the article

  • Order By Problem T-Sql

    - by Nick LaMarca
    I have a sql statement I am using a simple sort such as the following Select numbers From theTable Order By numbers What I get in return is the following 1 11 12 14 2 21 22 23 3 35 37 etc... I want it to be ordered in normal order 1 2 3 4 5 6 etc...

    Read the article

  • How to search for obtaining the "best" result

    - by stighy
    Hi guys, suppose someone enter this search (on an form): Nicole Kidman films Which SQL i can use to find "the best" results ? I suppose something like this : SELECT * FROM myTable WHERE ( Field='%Nicole Kidman Films%' OR Field='%Nicole%' OR Field='%Kidman%' OR Field='%Films%' ) My question is how to get most relevant result ? Thank you very much!

    Read the article

  • Where can I get a machine readable representation of world currencies and their symbols?

    - by Khanzor
    I'm using ASP.Net and would like to display currencies based on a country. I've had a look at http://www.xe.com/symbols.ph, http://www.xe.com/iso4217.php and http://www.iso.org/iso/support/faqs/faqs_widely_used_standards/widely_used_standards_other/currency_codes/currency_codes_list-1.htm Is there anywhere I can get something that I can load into a database? Or is there something built in to SQL Server 2005/ASP.Net to help with this?

    Read the article

  • How many objects can LINQ used to create per second ?

    - by MemoryLeak
    I used Linq to insert objects into database.But if i used threads to simultanously create 20 object within 1 second, then system will fail to add 20 objects into database. And I found it is not because of the sql server 's limit. so the only possible is Linq, any one have idea ? How can I create 20 records or more in 1 second within 1 second ?

    Read the article

  • Comparing XML in SSRS

    - by silves89
    I'm new to SSRS. We'll have two slightly different chunks of XML in a single row of an SQL Server database table. In an SSRS report we'll want to show only the differences between the XML chunks. I don't know how to do this, but I suspect the XML Type in SQLServer 2005 might be useful, or XSLT transformations in SSRS. Could anyone point me in the right direction?

    Read the article

  • Mysql syntax help

    - by Karthick
    Query: select t1.col1 from table1 t1 inner join with (nolock) table2 t2 on t1.col2 = t2.col1 Am trying to use nolock option for optimized query in mySQL db, but for some reason the above query does not work and the error i receive is You have an error in your SQL syntax; Any thoughts?

    Read the article

  • 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?

    Read the article

  • I've caught an exception!! Now what?

    - by Jonesy
    Hi folks, I've started using try catch blocks (bit late i know!) but now im not sure what to do with the exception once i've caught it. What do people usually do here? -- Jonesy Try connection.Open() Dim sqlCmd As New SqlCommand("do some SQL", connection) Dim sqlDa As New SqlDataAdapter(sqlCmd) sqlDa.Fill(dt) Catch ex As SQLException ' ahhhh what to do now!!!? Finally connection.Close() End Try

    Read the article

  • Repository Pattern: SaveOrUpdate() in Entity Framework and L2S

    - by JMSA
    These web articles uses separate Save() and Update() methods in the repository pattern. I am using repository pattern. How can I write a SaveOrUpdate() method in Entity Framework with the help of ObjectContext and in Linq-To-SQL with the help of DataContext? That is, how can I write a single method that shall do both save and update job?

    Read the article

  • Where binary in SQL

    - by fire
    I have an SQL statement: SELECT * FROM customers WHERE BINARY login='xxx' AND password='yyyy' There are no blob/binary fields in the table, do I need the BINARY after the WHERE what else does it do?

    Read the article

  • How to calculate

    - by Bob
    Hi, I hv a table like this :- Item Qty Price A Price B abc 5 36.00 0 qwe 8 0 48.00 zxc 6 12.00 0 poi 4 10.00 0 lkj 9 12.00 0 mnb 3 0 14.00 vfr 7 0 6.00 How can I sum the value using SQL ie. if Price A is zero, it will pick Price B. The expected results will be as follows :- Item Value abc 180.00 qwe 384.00 zxc 72.00 poi 40.00 lkj 36.00 mnb 42.00 vfr 42.00

    Read the article

  • What is the best approach using JDBC for parameterizing an IN clause?

    - by Uri
    Say that I have a query of the form SELECT * FROM MYTABLE WHERE MYCOL in (?) And I want to parameterize the arguments to in. Is there a straightforward way to do this in Java with JDBC, in a way that could work on multiple databases without modifying the SQL itself? The closest question I've found had to do with C#, I'm wondering if there is something different for Java/JDBC.

    Read the article

  • how to generate primary key values while inserting data into table through pl/sql stored procedure

    - by thulasi policherla
    hi friends, I am trying to insert data into particular table through pl/sql stored procedure,my requirement is while inserting i should generate PRIMARY KEY values for particular column and also i should return that PRIMARY KEY value to output and one more thing is that for another column i should validate my string such that it should contain only characters not integers. please help me in writing code for the above requirement Thanks and regards thulasi policherla

    Read the article

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

< Previous Page | 516 517 518 519 520 521 522 523 524 525 526 527  | Next Page >