Re: Procedure execution problem - Clients performances

I always use ISO format YYYY/MM/DD.
Then no chance for mistakes

The result is always correct when it works..

Best

Robson

"Andrew J. Kelly" <sqlmvpnooospam@xxxxxxxxxxxx> wrote in message
news:e5a3pigPIHA.4752@xxxxxxxxxxxxxxxxxxxxxxx
One comment. You should use the unseperated format for datetimes so there
is no mistaking the days for months etc. For instance the value you have
of '2007/10/11' can be interpreted in at least two ways depending on some
client settings. Is it Oct 11th or Nov 10th? .net may interpret it
differently than ODBC in SSMS.

http://www.karaszi.com/SQLServer/info_datetime.asp

In .net you should specify the datatypes for each parameter as well.

And the example you gave the dates are not the same for both. Did you run
a trace to compare the execution plan and statistics from each to see what
is different?
In the .net example you are filling a Dataset and then binding to a Grid,
can you eliminate those as a source of the issue? Maybe just fill a DS
and don't bind it or do any other processing.

--
Andrew J. Kelly SQL MVP
Solid Quality Mentors


"Robson Luiz" <robsonbr_2004@xxxxxxxxxxxx> wrote in message
news:ursNXmdPIHA.4808@xxxxxxxxxxxxxxxxxxxxxxx
Procedure call in SSMS
exec dbo.mapa_separacao_pesquisar_ext
@empresa_id=1,@unidade_negocio_id='2.001.02',@data_inicial='2007/10/11',@data_final='2007/12/11'

Executes in 1 second

in .net app.

Dim conn As New SqlConnection

conn.ConnectionString = "Data Source=server1;Initial
Catalog=varuna70;Integrated Security=True"

Dim cmd As New SqlCommand

Dim par1 As SqlParameter

Dim par2 As SqlParameter

Dim par3 As SqlParameter

Dim par4 As SqlParameter

Dim sqla As New SqlDataAdapter

Dim ds As New DataSet

cmd.CommandType = CommandType.StoredProcedure


cmd.CommandText = "mapa_separacao_pesquisar_ext"

par1 = New SqlParameter("@empresa_id", 1)

cmd.Parameters.Add(par1)

par2 = New SqlParameter("@unidade_negocio_id", "2.001.02")

cmd.Parameters.Add(par2)

par3 = New SqlParameter("@data_inicial", "2007/11/11")

cmd.Parameters.Add(par3)

par4 = New SqlParameter("@data_final", "2007/12/11")

cmd.Parameters.Add(par4)

cmd.Connection = conn

sqla.SelectCommand = cmd

sqla.Fill(ds) -- timeout

Me.DataGridView1.DataSource = ds.Tables(0)

Me.DataGridView1.Refresh()






"Andrew J. Kelly" <sqlmvpnooospam@xxxxxxxxxxxx> wrote in message
news:uCKTk9cPIHA.4752@xxxxxxxxxxxxxxxxxxxxxxx
Exactly how are you calling it in SSMS? Can you show the exact code?
In .net you are defining the datatypes and in SSMS it may be guessing.
Plus it will be an RPC call in .net vs. a Batch in SSMS and will get two
plans which may or may not be the same.

--
Andrew J. Kelly SQL MVP
Solid Quality Mentors


"Robson Luiz" <robsonbr_2004@xxxxxxxxxxxx> wrote in message
news:e2Ohe0cPIHA.4272@xxxxxxxxxxxxxxxxxxxxxxx
But it still strange..

Same procedure with same parameters executes in 1 sec in sql management
studio and get me timeout when executed in a .net application using
sqlclient.

but if i recompile the SP in SSMS both cases work well.

But after a time the problem repeats.. I see SSMS is not sensitive to
query plan as sqlclient is.

Robson

Robson

"Andrew J. Kelly" <sqlmvpnooospam@xxxxxxxxxxxx> wrote in message
news:OR2OQMbPIHA.5164@xxxxxxxxxxxxxxxxxxxxxxx
Sounds like parameter sniffing issue. Have a look at these:

http://www.microsoft.com/technet/prodtechnol/sql/2005/recomp.mspx
http://blogs.msdn.com/queryoptteam/archive/2006/03/31/565991.aspx
http://omnibuzz-sql.blogspot.com/2006/11/parameter-sniffing-stored-procedures.html


--
Andrew J. Kelly SQL MVP
Solid Quality Mentors


"Robson Luiz" <robsonbr_2004@xxxxxxxxxxxx> wrote in message
news:%23mBc09ZPIHA.280@xxxxxxxxxxxxxxxxxxxxxxx
Hello people.

I have a strange behaviour with a stored procedure.

Using management studio procedure executes in 1 second.

Using a .net application (VS 2005) with sqlclient same procedure get
me a timeout execution..

Any help???

Best

Robson










.

Relevant Pages

  • Re: Procedure execution problem - Clients performances
    ... Dim conn As New SqlConnection ... Dim par1 As SqlParameter ... .net you are defining the datatypes and in SSMS it may be guessing. ... Same procedure with same parameters executes in 1 sec in sql management studio and get me timeout when executed in a .net application using sqlclient. ...
    (microsoft.public.sqlserver.clients)
  • Re: Procedure execution problem - Clients performances
    ... Dim conn As New SqlConnection ... Dim par1 As SqlParameter ... In .net you are defining the datatypes and in SSMS it may be guessing. ... Same procedure with same parameters executes in 1 sec in sql management ...
    (microsoft.public.sqlserver.clients)
  • Re: Procedure execution problem - Clients performances
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    (microsoft.public.sqlserver.clients)
  • Re: Procedure execution problem - Clients performances
    ... Procedure call in SSMS ... Dim conn As New SqlConnection ... Dim par1 As SqlParameter ... Same procedure with same parameters executes in 1 sec in sql management ...
    (microsoft.public.sqlserver.clients)
  • Re: Procedure execution problem - Clients performances
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