Count SQLClient Database Queries From App
Aug 30, 2010
I need to do some performance testing for an ASP.NET MVC application and specifically want to measure how many database queries each HTTP request results in. The data access layer is using LINQ-to-SQL. I'd like to be able to automate the tests so am looking for a good way to be able to do a before and after count of the number of SQL queries. The possibilities I can think of are: A performance monitor counter for the ASP.NET process, A system table in the MSSQL database that can be queried before and after each page request, A property somewhere in the System.Data.SQLClient namespace that tracks the number of queries executed by the process. Has anyone done this before and can perhaps point my down the right path?
View 1 Replies
Similar Messages:
Feb 4, 2010
I know there has to be a way to do this but for some reason I keep getting it wrong. I have one query which pulls all of the cities from a zipcode database like so:
[Code]....
Then I have another which counts the records from a transactions table per city, like so:
[Code]....
Only the zipcode is stored in the transactions table, so the idea here is to get a list off all the distinct cities that reside in the state. Once I have the cities, I want a count for each city as a whole, so I need to go back in and get all of the zipcodes that make up one city, and then count the transactions for those zipcodes. It works using the first query above, looping through them and then executing the second for every pass. But shouldn't there be a way to do it all in one query?
View 4 Replies
Feb 25, 2010
Is there a way to connect the database PROGRAMMATICALLY without using SYSTEM.DATA.SQLCLIENT?
View 9 Replies
Mar 23, 2011
I am getting this error:
CS1061: 'System.Data.SqlClient.SqlDataAdapter' does not contain a definition for 'Rows' and no extension method 'Rows' accepting a first argument of type 'System.Data.SqlClient.SqlDataAdapter' could be found.
Here is my code, what am I doing wrong?:
[Code]....
View 4 Replies
Aug 31, 2010
Among methods: static variables, viewstate, session and cache for avoiding on loading repeatedly and less making queries to the database. What do you think the best method of the 4 above? I Think Cache is the best one? Or any other methods better in Asp.net 3.5 or higher?
View 3 Replies
Aug 17, 2010
I'm after some thoughts on how people go about calculating database load for the purposes of capacity planning. I haven't put this on Server Fault because the question is related to measuring just the application rather than defining the infrastructure. In this case, it's someone else's job to worry about that bit! I'm aware there are a huge number of variables here but I'm interested in how others go about getting a sense of rough order of magnitude. This is simply a costing exercise early in a project lifecycle before any specific design has been created so not a lot of info to go on at this stage.
The question I've had put forward from the infrastructure folks is "how many simultaneous users". Let's not debate the rationale of seeking only this one figure; it's just what's been asked for in this case! This is a web front end, SQL Server backend with a fairly fixed, easily quantifiable audience. To nail this down to actual simultaneous requests in a very rough fashion, the way I see it, it comes down to increasingly granular units of measurement:
Total audience
Simultaneous sessions
Simultaneous requests
Simultaneous DB queries
This doesn't account for factors such as web app caching, partial page requests, record volume etc and there's some creative license needed to define frequency of requests per user and number of DB hits and execution time but it seems like a reasonable starting point. I'm also conscious of the need to scale for peak load but that's something else that can be plugged into the simultaneous sessions if required. This is admittedly very basic and I'm sure there's more comprehensive guidance out there. If anyone can share their approach to this exercise or point me towards other resources that might make the process a little less ad hoc
View 1 Replies
Feb 26, 2010
VWD 2008 Express. Visual Basic.
I know how to create an AccessDataSource on my aspx page and how to use the datasource to populate gridviews, etc. But I want to know how I can programmatically populate a dataset by querying an Access database. How do I make queries to an Access database programmatically?
View 8 Replies
May 7, 2010
We have an ASP.NET application that uses SQL statements, where table names are unqualified. When compiled, it works fine, but when uncompiled, it complains and errors out, saying these tables dont' exist. (Qualified name looks like Select * from MyDatabase.mySchema.MyTable; Unqualified like Select * from MyTable) If you try these queries on the database, by yourself, it will take only the qualified names. What's going on? I thought Compiled vs Uncompiled apps should perform the same way codewise.
View 2 Replies
Mar 29, 2010
How to add queries in to database using ajax (without page refresh).
View 1 Replies
Nov 9, 2010
A sample linq query from MSDN: var expensiveInStockProducts = from p in products where p.UnitsInStock > 0 && p.UnitPrice > 3.00M select p; Does this query select EVERY column from the database table immediately, or does it return some sort of pointer that retieves the actual column data on demand? ie. If there are 50 columns in my table and I only use a single p.UnitsInStock in my actual code, then am I retrieving 50 times more data than I expected?
View 2 Replies
Aug 24, 2010
We have a web application using VS 2008, c#. We try to filter siteMap nodes based on security roles. We have our customized the mether GetRolesForUser() in RoleProvider class to determine a user's role. In this method, roles will be returned by querying an SQL Server database. However, we found that each time a page was loaded/refershed, this GetRolesForUser() was called, and the database would be queried. This is too MUCH and expensive. We thought the roles should be queried only once when a user logs in. After that, role info should be stored somewhere for this user, rather than query DB all the time.
View 3 Replies
Sep 2, 2010
anyone know that can we used select statement to called queries table in database or not?usually people used select statement to called common table in database.
View 4 Replies
Jul 22, 2010
I am very new on the C# and ASP scene and am after some advice on how to handle a senario. I have a asp website with 10 text boxes. These boxes form the basis of a user completed parameter selection. There is a button that will fire the query. The compliction is that some of the textboxes may be left blank and any combination may be filled in.
The only way i could think to do this is with countless IF statements. The user clicks the button and the process checks out the senarios and runs the corresponding SQL statement. The problem with this is that there are a vast amount of possible senarios depending on whether the user completes one box, all boxes, or a mix of any of them. The SQL query is the same for each senario bar the WHERE statement which changes depending on which text boxes are filled in. Is there another way of doing this or do i really need to write every possible senario out in full?
View 14 Replies
Nov 4, 2010
I have asp.net application, using LINQ to connecto to SQL Server 2008 R2 databse. My connection string: Data Source=[SqlServerIp];Initial Catalog=[databaseName]User Id=newLogin;Password=newPassword; When I deploy application on my local IIS (which is not the same machine as database server)
it works fine, but when I deploy application on other IIS (the same machine as sqlServer) it throws an exception: System.Security.SecurityException: Request for the permission of type 'System.Data.SqlClient.SqlClientPermission, System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed. how to fix it? Maybe it is due to some bad configuration of IIS?
View 1 Replies
Feb 5, 2010
In general terms, which way will require more server processing power and which way will return faster queries... if there is even a difference. The client's database is still on the dev MS SQL server but is essentially but the client has decided they want to collect two more fields of information. Both fields are going to be collection text data and probably varchar(300) will be sufficient for the column data types. Would it ultimately be more efficient to
Add two additional columns in the main table so the data is entered directly into each record, or Add an additional table (or two) with a foriegn key to the primary table that holds the info for each new field The SELECT statement for the main table could be modified to either add the new columns (a.NewColumn1 and a.NewColumn2) or it could contain nested SELECT statements that pull in the data from the other tables. Custom daisy-chained Insert or Update statements would be no problem and a cascade Delete relationship would take care of any deletions. I'm just trying to figure out which would be better from a performance standpoint?
View 3 Replies
Jan 11, 2011
I have the code below which does work, but I need to add further functionality to it. The functionality I want to add to it is the text I have commented in the code below.
Dim objSQLConnection As SqlConnection
Dim objSQLCommand As SqlCommand
Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs)
Dim intID As Integer = CType(Request.Form("ID"), Integer)
Dim strHeading As String = CType(Request.Form("Heading"), String)....
Before the if statement, I want to find out if the database already has records with the username in the strUser variable.
View 2 Replies
Feb 8, 2011
I am having a problem that I want to get a list of items(like categories) and count of records corresponding to those items (like subcategories).. I have two tables (categories, and users). I want to get the list of categories from categories table and the count of subcategories from the users table...I donot know how to do this. e.g. "select categories from categories" and "select count(subcategories) from users where category = ?"
View 5 Replies
Jan 14, 2011
Is the following code using good practices? All I want to do is get a count of the number of rows which any given user has:
objSQLCommand = New SqlCommand("select count(id) as record_count from table1 where user = @strUser", objSQLConnection)
objSQLCommand.Parameters.Add("@strUser", SqlDbType.VarChar, 3).Value = strUser
objSQLCommand.Connection.Open()
objSQLDataReader = objSQLCommand.ExecuteReader()
objSQLDataReader.Read()
intRecordCount = objSQLDataReader("record_count")
objSQLDataReader.Close()
objSQLCommand.Connection.Close()
View 4 Replies
Jan 31, 2011
i have in my asp.net web-page label that contain result of count record query.
i need to see refresh this query and see the correct record count.
how to see it ? i need any timer ? how to do it without Flickers ?
can i get any sample C# asp.net code ?
View 2 Replies
May 6, 2010
I would like to get the number of StoredProcedure in a Database how to do it.
View 5 Replies
Oct 1, 2010
Suppose we want to select the data from the database then we write the query for that. Example:
SqlConnection con=new SqlConnection(Connetion name) string selectPkId = @"SELECT PK_ID FROM TABLE" SqlCommand cmd=new SqlCommand(selectPkId ,con);
So,my question is that why we basically use @ before the sql query.If I don't use @ before that then it again work fine (does not give any error), then what is need of using "@"?
View 1 Replies
Oct 29, 2010
sometimes learning asp.net feels so heavy handed compared to some of the general purpose scripting languages like php. for examples, all i want to do is create a sql connection that pulls a row count and displays that number. I don't need a grid, list, detail page, etc., nothing this heavy... a simply query that will display a simple bit of text. for the life of me I can't figure out how to do it. Using these controls, I'm not in the code behind with the query, so I wouldn't attach this to a label (or would i), and there's nothing i see in the toolbox that does what i want. Perhaps i'm too accustomed to php but it feels like with asp.net, major things are simple, and simple things are hard.
View 6 Replies
Jan 8, 2010
i am using sql 2005 db. i have created a table called attendance where i store employee attendance, i want to separate number of absence for a particular employee and particular month. It have to show number of absence of a particular employee and particular month. Also i have to count no of absence. for eg: if an employee absence for two days for a particular month, it have to display 2 count.. how to do this? also how to write the store procedure for this?
View 4 Replies
Jan 17, 2010
I have executed my query in VB with:
[Code]....
I now want to count the number of returned rows so that I can say:IF rows_returned = 1 then login else deny
I think you get the idea.P.S. I know this is not the most secure method of login but I do not want to use the ASP.NET configuration manager as I like to understand what is happening. I am starting off very simple and I shall work up from there.
View 1 Replies
Jan 31, 2011
i have in my asp.net web-page `label` that contain result of count record query.
i need to see refresh this query and see the correct record count.
how to see it ? i need any timer ? how to do it without Flickers ?
can i get any sample C# asp.net code ?
View 2 Replies
