Is there a way to see the underlying SQL sentence when executing a stored procedure in Entity Framework (3.5)?
To use the stored procedure I did from the diagram: Add, Function Import… etc
Thanks
UPDATE 1
I downloaded 'AnjLab Sql Profiler' from.
http://code.google.com/p/sqlexpressprofiler/downloads/list
And was able to see that the stored procedure is executed correctly.
You can use any type of database profiler - for example SQL profiler for SQL server or you can use either EFTracingProvider or any EF profiler (these tools are usually commercial). Here is whole article about these techniques.
Related
I am not an expert in IBM Host tools as I am from development distributed side. Is there anyway that we can see the source code of IBM DB2 stored procedure in AQT tool. I know we can use any emulator tools like Attachmate Extra! X-treme, but the process seems very tough for me. To view a single stored procedure content, I had to type many number of commands. So I just thought it would be great if we have an option to view the same in a simple way, like we have sp_helptext in SQL SSMS (SQL Server Management Studio).
Update:
When I go to the Database Objects -> Procedures, all the schema's for different stored procedures are loading. And when I click on each schema, the stored procedures associated with that are loading, where I am able to see the procedure parameters, run procedure, create procedure etc. But I couldn't find any option to see the actual SQL query of the procedure.
When I click right click on procedure name and select View, I am getting options as,
Procedure Details
Procedure Params
User Access List
Package Access List
I am not seeing any option like Procedure Text. The language in Procedure Detail shows as COBOL and User Access List shows Execute G. Sorry that I can't provide any screenshots here, as it is the client machine I am working on.
Are you using the right tool for the job?
The AQT tool appears to be for procedures that are written in SQL, but your procedures appear to be COBOL stored-procedures. Source code for COBOL stored-procedures is normally managed outside of the RDBMS.
Talk with your DBA team or COBOL developers to find out which toolset at your site gives access to the source code for the COBOL stored procedures.
I'm calling ExecuteSqlCommand several thousands times per minute and each one is a round-trip to the database. The command itself calls a stored procedure and the parameters vary from INTs to NVARCHARS to "Structured" table-value parameters. When I look at the SQL commands generated by Entity Framework via SQL Profiler quite a sizeable chunk of data is being sent to the DB.
Given that there is no return value from the SP, it's very much "fire and forget", I'd like to try to batch up the SQL commands and send, say, a batch of 10 at once. Is this possible using Entity Framework? Is there a way to get Entity Framework to return me the full SQL command per call and then I could concatenate the SQL myself and call ExecuteSqlCommand myself?
EntityFramework currently does not support batching. However if you are just executing SQL queries then I don't see a benefit of using EntityFramework. You can go one level below to pure ADO.NET where it is supported to send Sql commands in batches. Take a look at this MSDN post for more details: http://msdn.microsoft.com/en-us/library/aadf8fk2.aspx
I'm using ADO.NET Entity Framework for our business application in ASP.NET website. We're using WCF and LINQ to query the data source. My problem is that data loading from database (for e.g. to load data in gridview) is taking much more time than expected, so we want to log statements in ado.net generated sql statement so we can see which query is taking more time .
How to do this?
I would strongly suggest that you use SQL Profiler rather than creating your own logging mechanisms.
Microsoft SQL Server Profiler is a graphical user interface to SQL
Trace for monitoring an instance of the Database Engine or Analysis
Services. You can capture and save data about each event to a file or
table to analyze later. For example, you can monitor a production
environment to see which stored procedures are affecting performance
by executing too slowly.
In your C# application, in your ConnectionString, add Application Name=yourApp. This will make it easier to locate in SQL Profiler.
I'm learning some ADO.NET. I noticed quite a few Database functionality can also be found in ADO.NET.
I'm kind of confused. Do I use ADO.NET to manage all the interactions or should I make call to the Database?
I don't know what should be done by ADO.NET and what should be done at the database level.
Thanks for helping.
If you mean what should be handled in SQL statements issued from ADO.NET, and what should be done in stored procedures stored at the database level, as much as possible in stored procedures, at least that's what I live by. In addition to eliminating the chance of SQL injection, stored procedures allow you to modify sql calls without having to recompile and deploy your code as well as they enable execution plan re-use by the query optimizer.
In Link-2-SQL, I can use the DataContext.Log property to see the exact queries that are getting thrown to SQL Server.
Is there an equivalent to this in Entity Framework?
ObjectQuery.ToTraceString()
Since Entity Framework supports multiple backends (as opposed to Linq-to-SQL which is SQL Server only), you can't really get the actual SQL being sent to the backend server from EF.
In order to really see what's going on, I'd recommend firing up SQL Profiler on the SQL Server backend, and see what queries get sent its way.
See this article on Simple-Talk and possibly this video series on becoming a SQL Profiler master if you're not familiar with the SQL Profiler tool.
Marc