I need to find out the query execution time from the front end .Where should I insert the code for that.
I am using the bleow query:
OracleConnection con = new
OracleConnection(ConnStr);
con.Open();
OracleCommand cmd =
new
OracleCommand("Stored_Proc",con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.Add();
....................
................
OracleDataAdapter
oda = new
OracleDataAdapter
(cmd);
when i am executing a simple query it is takeing 47 sec .... that is only for one table.. other then that remaing table perfromance is good... Help me out... and is there chance to get good perfomance through .net coding..
View 3 RepliesI have a query:
Select a from tbl_abc where id in ( select id from tbl_xyz where mainid = 12)
When I am executing this query, it is taking 1-2 seconds to execute, but when I am using the same query in stored procedure, the below query is taking more than 5 minute:
If(Select a from tbl_abc where id in ( select id from tbl_xyz where mainid = 12))
BEGIN
-- CREATE TEMPORARY TABLE [Say: #temp1]
#temp1 => Select a from tbl_abc where id in ( select id from tbl_xyz where mainid = 12)
inserting the same value in the temp table
drop #temp1
END
what could be the reason of this? and how can I resolve this? I am running the SP from asp.net
I have table for past four years. It had a records for around 10 Lacks it was taking lot of time to execute so i removed recordes from the table. Table size was reduced to 29 thousand. Still when i execute a query from my application it takes more than 2 minutes to return.
View 4 Repliesiam trying to fill my dataSet Iam getting Error: Fatal error encountered during command execution.Ima using Ms.Net 2.0 and MySql 5.0 So Thing is Iam Hanged Here .My Code as Like:
MySqlConnection con = new MySqlConnection("server=XXX.XXX.X.XXX;user id=murali;password=murali;database=MURRAGE;default command timeout=3600");
da = new MySqlDataAdapter("SELECT BLNO FROM IFORM", con); [code]....
Can any one please provide link for flow of query exection in sql
For eg.
FROM, [JOIN CONDITION, JOIN TABLE ...], WHERE, GROUP BY, HAVING, SELECT, DISTINCT, ORDER BY, TOP
Suppose when we write query, how that query will get execute behind. I would like to know about that.
Can you please provide ariticles or link related to this
I'm executing one stored procedure from the '.net' code. Since there is a lot of data, it is taking too much time to execute. Is there any way to stop this execution from the c# code?
In other words, if we execute the query from database itself, there is a option to stop its execution but in the code is it possible?
I would like to check how long an ASP.NET page takes to execute (server stuff obviously, not interested in how long it takes to throw the results down the line and for the browser to render them at this stage).
Having done some searching, I came across http:[URL] which shows how to do just this. Trouble is, it doesn't work for me. I copied the code exactly, but the execution time is always zero.
I tried enabling tracing, and that showed an elapsed time between Page_Init and Page_PreRender, but the values returned by Environment.TickCount were exactly the same in both events, so the elapsed time was 9obviously) zero.
How to increase the execution time?
View 11 Repliescan anyone explain me how below query will execute internally ??
select sal from emp e1 where 3>(select count(*) ct from emp e2 where e1.sal < e2.sal)
i am using the transaction-per-request (session-in-view) pattern for an asp.net web application. I have a couple of points in the application where i want to Save an NHibernate managed entity and then do a couple of more inserts and updates using common sql. These inserts/updates depend on the ID that the NH saved entity will take.
The problem is that the generated id does not exist in the transactions' scope. If i force a flush/commit the id is persisted but if the inserts/updates fail i have to rollback but the flushed/committed entity will not. Currently I'm doing a manual insert for these cases but that is something i want to change. So, is there a way to execute the SQL statement (inside the already open transaction) after the Save() but without forcing a flush/commit?
EDIT: I'm adding a semi-pseudocode example, i got 4 wrong answers so i think people don't understand (how NHibernate works)
At the Begin request i issue a
nhsession.BeginTransaction()
then at some point i do
FooClass fc = new FooClass("value");
nhsession.Save(fc);
ITransaction trans = nhsession.Transaction;
SqlCommand sc = new SqlCommand("some insert/update query that depends on fc's id", (SqlConnection)nhsession.Connection);
sc.Parameters.Add("id", fc.Id); //NHibernate generates the id, note i'm using assigned/hi-lo so no round trip to the db takes place
transaction.Enlist(sc);
try {
sc.ExecuteNonQuery();
}
catch (SqlException ex){
transaction.RollBack();
nhsession.Close();
}
and at the end of the Request i issue a CommitTransaction() and nhsession.Close()
Now this will do absolutely nothing: the FooClass (fc) has not been flushed/commited to the database. The Save() operation that NH has done is up to that point in-memory. That means no sql command has been issued by nhibernate and that means that the SqlCommand (sc) that i fire afterwards will fail miserably as the id does not exist.
If i do a flush/commit between Save() and the SqlCommand the FooClass(fc) _cannot_be_rolled_back_ and that is a bad bad thing.Currently, for this to work i make vanila sql insert using an SqlCommand, and i want to change that. (Why? because i don't want to make vanilla inserts they are susceptible to errors due to schema/model changes, and i got the OR/M for that)
How? i want to notify NHibernate somehow to execute the SqlCommand to corresponds to the Save() insert (hell, it can do all the SqlCommands it has gathered) but without it commiting or flushing!.
Currently i'm also searching for the prepared sql statement that nhibernate produces when flushing/commiting a saved object. Maybe i can just take that string and run it in my SqlCommand that is enlisted in the Transaction.
I'm building an ASP.NET MVC site that uses LINQ to SQL. In my search method that has some required and some optional parameters, I want to build a LINQ query while testing for the existence of those optional parameters.
Here's what I'm currently thinking:
using(var db = new DBDataContext())
{
IQueryable<Listing> query = null;
//Handle required parameter
query = db.Listings.Where(l => l.Lat >= form.bounds.extent1.latitude && l.Lat <= form.bounds.extent2.latitude);
//Handle optional parameter
if (numStars != null)
query = query.Where(l => l.Stars == (int)numStars);
//Other parameters...
//Execute query (does this happen here?)
var result = query.ToList();
//Process query...
Will this implementation "bundle" the where clauses and then execute the bundled query? If not, how should I implement this feature?
i have a complex MSSQL query in my ASP.NET page with rows showing in GridView control.
I want to know what is the best solution for stopping the query if it takes more than X seconds to show in GridView.
I've got a loop that executes the stored procedure in a loop with over 40,000 iterations, like so:
SqlCommand command = new SqlCommand("WriteDataToDB");
command.Connection = _connection;
command.CommandType = CommandType.StoredProcedure;
command.Parameters.Add("@SignalID", SqlDbType.Int).Value = Arg_Signal.SignalID;
command.Parameters.Add("@SignalStrength", SqlDbType.Float).Value = Arg_Signal.SignalSiggestion;
command.Parameters.Add("@Time", SqlDbType.BigInt).Value = Arg_Signal.TimeWasHit;
command.Parameters.Add("@Value", SqlDbType.Float).Value = Arg_Signal.ValueWasHit;
if (command.Connection.State != ConnectionState.Open)
{
command.Connection.Open();
}
command.ExecuteNonQuery();
This code is called from a loop where I intercept and time every 1000th iteration. The times I get are below:
[0]: "Started 0ms"
[1]: "1000 done 578.125ms"
[2]: "1000 done 921.875ms"
[3]: "1000 done 1328.125m"
[4]: "1000 done 1734.375ms"
[5]: "1000 done 1140.625ms"
[6]: "1000 done 1250ms"
[7]: "1000 done 1703.125ms"
[8]: "1000 done 1718.75ms"...........................
This might be a pretty strange question in the eyes of some of you out here, but I really wonder if comments in my code will slow down the execution time of the pages I make.I have some Classes / WebControls that required alot of comments to make everything clear and quickly readable to other people that will have to deal with my code and now wonder how ASP.Net deals with my comments. Will comments be stripped from my code at compile time or how is this all done?I should be more specific: I mean comments in my code-behind in C#.
View 4 Replies I have a big query that it execute in 4 minutes. (for example an important trigger)
I want to show situation of query or count of records that is affected in every 10 second in to a web page.
what should I do? (complete explain)
I have a class that being used to connect with the DB. Now I want to count how many times each web request executes the queries, but I've no idea where to store the counted value. I mean, Session wont, ViewState wont work as site also have webservices. What else I can use?
View 12 RepliesI need to capture the amount of time that ASP.net takes to execute each page request in my application, but I need to exclude any network latency. I am currently capturing render times by using the StopWatch class and starting the stopwatch during the OnInit method of the page lifecycle and stopping it after the Unload method completes. It seems that the Unload method includes the time it takes send the request to the client, thus including any internet/network latency. What is the last possible point I could stop the stopwatch in the Page Life Cycle that would not include the time it takes to send the request to the client. Would it be directly before the Unload event?
Related question: Does ASP.net finish building the response before it starts sending to the client? Or does it start sending asynchronously, while the response is being formed?
I am using ASP.Net 2.0 with IIS 5 currently.
I have this code in a class that all of my pages inherit from:
readonly Stopwatch _serverExecutionTime = new Stopwatch();
protected override void OnInit(EventArgs e)
{
_serverExecutionTime.Start();
base.OnInit(e);
}
protected override void OnUnload(EventArgs e)
{
_serverExecutionTime.Stop();
base.OnUnload(e);
}
UPDATE
I tried capturing the execution time at the end of the OnRender method, at the start of the OnUnload method and at the end of the OnUnload method. In all three cases the difference in times was at most 1 millisecond. Even when testing this from a client in Europe to a server in the USA, the times were identical.
i am new at reporting service things when i try to create a report i got this error and idea how to fix it
An error occured during local report processing.
An error has occured during report processing.
Qery execution failed for dataset 'ds_testtablosu'
Cannot initialize the data source object of OLE DB provider "MSDASQL" for linked server "MMDB"
I am a biggner in SQL DB . but i started a complicated and painfull work in SQL SERVER 2008. the problem convert Oracle hierarchical query to SQL query. the query
SELECT DISTINCT
LEVEL LVL,
SCH.NSCHEDULE_SL,
SCH.NSCHEDULE_SL_FM,
SCH.CSHED_CNAME
FROM FA_SCHEDULES SCH
WHERE LEVEL = 1
AND NSCHEDULE_SL_FM IS NULL
AND NBRANCH_SL = 2
CONNECT BY PRIOR SCH.NSCHEDULE_SL_FM = SCH.NSCHEDULE_SL
AND NBRANCH_SL = 2
I need to insert values from the frontend into a mysql table. I am using a 3 layer architecture. the below is the code that is written in my dataaccess layer. the query is not being executed.
public int Insert(List<EmployeeUInfo> objInsert)
{
try
{
DataTable dtInsertRow = new DataTable();
[Code]....
Trying to modify an existing gridview in an aspx to access a db2 table on an iseries server. The iseries seems to have problems with the parameter specified in the query as @parameter giving a @parameter does not exist in table error. When specifying the gridview in VS the wizard did not recognize that the @parameter was a parm and prompt for the control etc. where it could be found. Of course there is no problem when accessing a mssql server table. Can someone help me with how to connect properly to the iseries and how to pass a parm on my query?
View 1 Repliesi have a SQL Query. It works fine in Sql server. let me know how to make it work in Oracle.
You can run below code in Sql server and check. It will work fine. But in Oracle,( I am using TOAD for Oracle )it is giving some errors.
Code]....
I am trying to do a SELECT ... WHERE ... IN construct, using a parametrized query with Oracle (odp.net) and I cannot make it work correctly.
[Code]....
The STATUS column is NUMBER(2) in the database. My problem seems to be related to getting the correct OracleDbType. I've tried Varchar2, Long, Decimal... nothing works. Should I go for the ArrayBindSize construct?
I run queries in my stored procedure and pass values to it as a perameter e.g.
SELECT p.Profile_Id
FROM Profile p
WHERE (p_Gender = p.gender_id)
now is there a way that i can get the actual query executed with paramaters value like this:-
SELECT p.Profile_Id
FROM Profile p
WHERE ('M' = p.gender_id)