i have a Tag Table TagId TagName
Post Table PostId PostName
TagPost Table TagId PostId
How can i do a many to many insert into database in one transaction?
how to insert record in sql server database by using linq?
still i m using MVC 3.0 send me full detail example for insert record using Linq
i want to insert data into database using LINQ to sql i have textboxes and when i enter data and click the button data has to be entered into the db,i have seen examples and googled but i dint get the correct solution.how to do this??
View 13 Repliesi want to insert data into database using LINQ to sql i have textboxes and when i enter data and click the button data has to be entered into the db,i have seen examples and googled but i dint get the correct solution.how to do this??If possible give me small example.
View 8 RepliesI am creating entries in a contract table using linq to sql.
One column needs to conditionally be assigned an application number from a range of values.
I'd like to simply increment the max existing value, however it is a multi-user application and I'm concerned about multiple contracts receiving the same app number if they happen too close together.
Is there a way to either force the entire thing to use the same transaction, or to execute both during the same submit?
I find my own way redundant to perform an insert command in a master-detail transaction. Sample, is a Purchase Order, before inserting the details/items will need to find the master key otherwise were not able to make the details connection. Normally we send command to button object which will submit the whole page rather than part of it and these means were not able to capture beforehand the master key to refer in the details.
So, Im thinking of how you do efficiently a master/detail batch update like we normally do in windows apps.
PLZ find below my transaction. i feel that something is wrong in those lines especially in the insert in the table BARCOD0F .the gridview dont show the new updates .i closed the page and relaunch everthing but the updates are not considered
at the first sight my code is right???
[Code]....
I've got all of my ASP.NET requests wrapped in a Session and a Transaction that gets commited only at the very end of the request. At some point during execution of the request, I would like to insert an object and make it visible to other potential threads - i.e. split the insertion into a new transaction, commit that transaction, and move on. The reason is that the request in question hits an API that then chain hits another one of my pages (near-synchronously) to let me know that it processed, and thus double submits a transaction record, because the original request had not yet finished, and thus not committed the transaction record.
So I've tried wrapping the insertion code with a new SessionScope, TransactionScope(TransactionMode.New), combination of both, flushing everything manually, etc. However, when I call Refresh on the object I'm still getting the old object state. Here's some code sample for what I'm seeing:
Post outsidePost = Post.Find(id); // status of this post is Status.Old
using (TransactionScope transaction = new TransactionScope(TransactionMode.New))
{
Post p = Post.Find(id);
p.Status = Status.New; // new status set here
p.Update();
SessionScope.Current.Flush();
transaction.Flush();
transaction.VoteCommit();
}
outsidePost.Refresh();
// refresh doesn't get the new status, status is still Status.Old
How to Insert data into database USING mvc BASED ON condition...
I want to check condition at the time of insert,Entered TagID exist in database show the error message,Not exist in database store data into database...
here is the link where sql transaction is used [URL]
in this line
Code:
myCommand.CommandText = "Insert into Region (RegionID, RegionDescription) VALUES (100, 'Description')";
RegionID is entered by user rather than auto generated ,so i have same problem but only difference is that if i have auto generated what code should i write in try block .
I want to delete file available on server and same time I want to update the filename column in my database.If I delete file first and then update database and an error come in updating database my file is already gone.If I update database first and then delete file from from disk and an error occur my file information in database is already gone Can any one tell me how I can do it both successfully. I means either both operations should succeed or I should not lose my physical file or its information in database.
View 3 RepliesI have to find the best way to do this using LINQ. I need to summarize an amount in a iTransaction table by
Account (e.g. 12345) and add that amount to an same Account ( e.g12345) if it exists in a iAccount table . Here is the code which syntax checks ok and tested ok up to the .submitChanges statement (i.e. I stopped and didn't allow the submit.
Following is the LINQ code. (1) Is that a good way to do this. OR should I try the INTERCEPT.
(2) How is the best way to insert a new record/row in the iAccounts table if it DOES NOT exist in the iAccount Table.
[Code]....
I am getting following error ...when trying to do any operation....
"The transaction log for database 'MyDatabase' is full. To find out why space in the log cannot be reused, see the log_reuse_wait_desc
column in sys.databases"
I tried to shirnk file log file using ...
dbcc shrinkfile(EMRSET_log,1) But still same issue....And its show ...
DBName 4 ACTIVE_TRANSACTION (log_reuse_wait, log_reuse_wait_desc) ...
What steps i do to resolve this issue. Using MS SQL 2008
i need to insert multiple rows at a time into database table(sqlserver) from datatable or gridview. Actually iam looping through the rows of gridview and inserting each row. Is there any method to insert entire table of rows at a time into database table. Both datatable columns and database table coulmns are similar.
View 2 RepliesI have grid view in ASP.Net 3.5. I need to add multiple blank rows in a gridview and then have to save them in database. How can I do that in most simplest way?
View 7 RepliesI got the following query to group the table. I am wondering how to add a subtotal record with anonymous type.
string prevOriginator = string.Empty;
var oOriginator = (from I in dtIssue.AsEnumerable()
group I by new {RaisedBy = I.Field<string>("RaisedBy"), ItemType = I.Field<string>("ItemType")} into grp
[code]...
How I can write following SQL query using LINQ. There is no default constraint define for the ID column so we have explicitly pass the NEWID().
I want to replicate the products of a company to another company.
Insert Into Products Select NEWID() AS ProductID, ProductName, CompanyID = @DestinationID, ProductCategoryID From Products Where CompanyID = @SourceID
Also once I get these result how can I use InsertAllOnSubmit to insert all the records at once without looping it.
I have a number of tables that together make up a "Test" that somebody can take. There are multiple types (scripts) of Test a person can take. I'm working on an Edit function that will allow somebody to edit the Test Questions. I want these edited questions to show up on all new Tests of that type, but still show the old questions when viewing past test scores.
To do this each "Test" has a TestId auto-increment identity (along with its name). When a test is edited I want to make a copy of the test with a new TestId and present the questions for editing.
So what is the best way to make the copy and insert it into my table using LINQ to SQL? This:
DataContext db = new DataContext(ConnectionString);
//Copy old test into identical new test but with a different script ID
var oldScript = db.TestScripts.Single(ds => ds.TestScriptId == oldScriptID);
var newScript = oldScript;
db.TestScripts.InsertOnSubmit(newScript);
db.SubmitChanges();
of course tells me that I Cannot add an entity that already exists.
Is the only way to do this to go through every column in the TestScript and copy it manually, then insert it, and the database will give it a new Id?
deleted old code
View 3 RepliesI have a view on my database and I am trying to add a new record using the AddTo method but it is not working. I noticed that LinqToEntities is creating the insert statement like this
Insert into (select field1, field2 from my_view) (field1, field2) values (value1, value2)
Is it possible to make LinqToEntities create the insert statement like the one below ?
Insert into my_view (field1, field2) values (value1, value2)
I worked with LINQ to SQL to insert and delete the data,but i want to use LINQ TO ENTITY to insert the data but i know LINQ to ENTITY is used for querying the database.I have searched the code for inserting records but i dint get any.
View 7 RepliesHow can I retrieve the row ID immediately as I insert a new record with LINQ? I need to refer back to it to update the row since it will be the only unique data in this particular table ( it's the primary key and the ID number is auto generated)
View 3 RepliesI am using Linq-To-Sql to add people to a one-to-one table. Sometimes I get a error "Violation of PRIMARY KEY constraint" when the person is already added. Can anyone give me instruction on how to handel the exception.
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Let's say I have a dataset in an ASP.NET website (.NET 3.5) with 5 tables, each has roughly 30,000 rows and an average of 12 columns. I want to insert all of the data from the dataset into 5 very-similar-but-not-quite-identical tables in SQL Server 2008. I also want to use LINQ (personal preference - trying to learn something new).
Is it as simple as iterating through the dataset and, for each row, creating a new instance of the associated class, initializing its data with the dataset's row, adding it to the data model, and then doing one giant SubmitChanges at the end?
Are there better ways of doing this with LINQ? Or is this the de-facto standard?
I am trying to insert the data via linq to sql concept. i wrote down the code like this. here customers is the table name in which i want to insert the data. How to achieve it? following code is not working. How to insert the data via this concept.
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As EventArgs) Handles Button1.Click
Dim context As New linq_to_sql_classesDataContext
Dim custid As New Customer
custid.CustomerID = Trim(txt_custid.Text)
[Code]....