Sqlcommand executenonquery vs executereader. ExecuteReader then ExecuteNonQuery INSERT 2019-03-01

Sqlcommand executenonquery vs executereader Rating: 4,6/10 369 reviews

SqlCommand, ExecuteNonQuery, ExecuteScalar, Functions vs StoredProcedures

sqlcommand executenonquery vs executereader

What dot-net release is using in as you have shown above? Write dt End If End If myconnection. ExecuteNonQuery ; I believe that some of the confusion comes from stored procedures templates being generated differently depending on from where you create them. ExecuteNonQuery Use: when we are talking about a single database record - in Update, Insert, Delete and Get by Id. This requires less code than using the ExecuteReader method and performing the operations necessary to generate the single value using the data returned by a DbDataReader. Reason: I am writing my own Dataset Designer Generator, and if the above makes more sense to interpret scalar functions as ExecuteScalar, I can incorporate that easily, the question is why the original generator is doing it the above way. You can get more details about me and my blog at page.

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ExecuteNonQuery to count number of rows??

sqlcommand executenonquery vs executereader

We investigated the underlying implementations etc, and there is no real benefit in adding an extra method. Fill Programmer 25 Jun 09 11:16. The easiest way seems to be SqlDatAdapter. Hi I have an SqlCommand Object. This is necessary since if you set AllowPaging to True and bind GridView using DataReader then you will land into an Exception as DataReader fetches records in ForwardOnly Mode. We're now having 2500+ programmers that get benefits and learn new things about website design and development under our community blog.

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Difference between ExecuteNonQuery, ExecuteScalar and ExecuteReader

sqlcommand executenonquery vs executereader

I explained more about here with example and sample code. SqlCommand If customer Is Nothing Then command. The problem is that ExecuteReader will work for every query via SqlCommand, so most people use it everywhere. When a trigger exists on a table being inserted or updated, the return value includes the number of rows affected by both the insert or update operation and the number of rows affected by the trigger or triggers. Close ; } catch Exception ex { MessageBox. All the three functions i. Fill Programmer 24 Jun 09 09:30 When I bind that object to an SqlDataAdapter and execute SqlDataAdapter.

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hawthornethreads.com

sqlcommand executenonquery vs executereader

ExecuteNonQuery just returns the number of rows affected, which is as cheap as it gets, computationally. In this case, the function defined is quite simple to use and is the most performant of the options available for this particular stored procedure and does not discard or obfuscate any of the data that would be returned. See also Sends the to the , and builds a using one of the values. Sometimes you end up with a return value of -1 when using the SqlClient. CommandBehavior behavior ; override this. For more information about streaming, see. Please do not post code, scripts or snippets.

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Main Difference Between ExecuteReader, ExecuteNonQuery, ExecuteScalar

sqlcommand executenonquery vs executereader

In sort, all about Asp. Just go to and choose DataReader from the DropDownList ExecuteNonQuery - this method returns no data at all. When the ExecuteReader method in SqlCommand Object execute , it will instantiate a SqlClient. You can add your comment about this article using the form below. Using myconnection As New SqlConnection ConnectionString Dim command As New SqlCommand checkSql, myconnection myconnection.

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DataReader Vs DataSet?

sqlcommand executenonquery vs executereader

Other results include database bottlenecks, locks and connection leaks. The , or object was closed during a streaming operation. Net Dataset forums , creates a ProcAdapter class that implements the functions that will call the specific Stored Procedure or Scalar function. These are the common differences that we need to clear before using them. Close End If End Try If command.

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Using SQLCommand ExecuteReader Example in hawthornethreads.com with C# and hawthornethreads.com

sqlcommand executenonquery vs executereader

Jason Meckley Programmer Specialty Bakers, Inc. The most common example for ExecuteScalar is fetching a single image stored in the database and converting it to array of bytes. ExecuteScalar ; } catch Exception ex { Console. Item 0 ; } reader. Use: when database query is going to provide a set of records.

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ExecuteReader, ExecuteNonQuery, ExecuteScalar ... When to use What ?

sqlcommand executenonquery vs executereader

What's the difference between ExecuteNonQuery and ExecuteReader? ExecuteNonQuery Next End If myconnection. ExecuteReader ; } return results;all closing and disposing is done for you with the using blocks. The SqlCommand ExecuteScalar in Ado. Fill Programmer Thanks guys, here is the code, good and bad. It is used to execute the sql statements like update, insert, delete etc. Otherwise, an might occur and the connection will be closed. I started AspnetO as a hobby and now we're growing day by day.

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