Query in Oracle 10 fast but slow in Oracle 11

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  <! [endif] > <! [if gte mso 9] >

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• Convert the SQL query to Oracle

  Hi all
  
  I have two SQL queries to create the table.
  
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  It is useful for you?

  Published by: insa on June 12, 2012 22:42

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• Fast and slow when issued by app SQL query on the issue mnaually

  Hello
  
  I have a more general question concerning a specific behavior of Oracle.
  
  I update a feature of an application. The application is not responding and I finally put end. I checked Oracle if a request is long running by using the following statement:
  
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  Here's the bit I don't understand: when I run the query in SQL Developer with value 5011: B1 it takes 0.5 seconds to return a result.
  
  Why did the sql statement taking so long on the issue by the application, but takes less than one second when I run it manually?
  
  I sent a dump of the data to the vendor of the application that is not able to reproduce the problem in their environment. Could someone explain to me what is happening here or give me key words for the search?
  
  We use 11 GR 2, 64-bit.
  
  Thank you very much
  Rob

  Hi Rob,

  at least, you should see some differences in the statistics for the child cursor different (one for running the application must show at least a higher value for ELAPSED_TIME). I would like to use something like the following query to verify the information for the child cursors:

  select sql_id
       , PLAN_HASH_VALUE
       , CHILD_NUMBER
       , EXECUTIONS
       , ELAPSED_TIME
       , USER_IO_WAIT_TIME
       , CONCURRENCY_WAIT_TIME
       , DISK_READS
       , BUFFER_GETS
       , ROWS_PROCESSED
    from v$sql
   where sql_id = your_sql_id
  

  Concerning

  Martin

• v machines are very fast, but so slow network. Advice appreciated...

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  Here is what I tried, from advice in this forum...

  -

  ---

  I enabled HyperThreading in the VI Client and enabled HyperThreading in the BIOS

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• If I run my query in Oracle, it runs without error, but when I run inside c# gives ORA-00911: invalid character

  I like to run below myQuery in c#, but saw the error. No idea what is the problem? If I'm running myQuery in Oracle, it runs without error. "I put all the +" before starting the myQuery line and "end of the line. but nothing changes.

  myQuery =

  with the CBC as

  (

  Select src.table_name src_table_name, src.column_name src_col_name, src.data_type src_data_type, src.data_length src_data_len, src.data_precision src_data_precision, src.data_scale src_data_scale,

  CBC. Nullable src_nullable, decode (T.Constraint_Type, 'P', 'Primary Key', 'U', 'Unique', ") as src_cons

  all_tab_columns CBC

  left join (select Cc.Column_Name, Uc.Constraint_Type

  of user_cons_columns cc, uc user_constraints

  where Cc.Constraint_Name = Uc.Constraint_Name

  and Cc.Table_Name = Uc.Table_Name) t

  on T.Column_Name = Src.Column_Name

  where table_name = 'INSTRUCTOR' and owner = "ERHAN"

  ),

  As TGT

  (

  Select tgt.table_name tgt_table_name, tgt.column_name tgt_col_name, tgt.data_type tgt_data_type, tgt.data_length tgt_data_len,

  TGT.data_precision tgt_data_precision, tgt.data_scale tgt_data_scale, tgt.nullable tgt_nullable,

  Decode (T.Constraint_Type, 'P', 'Primary Key', 'U', 'Unique', ") as tgt_cons

  from all_tab_columns tgt

  left join (select Cc.Column_Name, Uc.Constraint_Type

  of user_cons_columns cc, uc user_constraints

  where Cc.Constraint_Name = Uc.Constraint_Name

  and Cc.Table_Name = Uc.Table_Name) t

  on T.Column_Name = TGT. Column_Name

  where table_name = 'INSTRUCTOR' and owner = "SARIGUL"

  ),

  col_details as

  (

  Select src.src_table_name, nvl (tgt.tgt_table_name, first_value (tgt_table_name) more (order of nulls last tgt_table_name)) tgt_table_name;

  SRC.src_col_name, src.src_data_type, src.src_data_len, src.src_data_precision, src.src_data_scale, src.src_nullable, src_cons,

  TGT.tgt_col_name, tgt.tgt_data_type, tgt.tgt_data_len, tgt.tgt_data_precision, tgt.tgt_data_scale, tgt.tgt_nullable, tgt_cons

  the CBC

  outer join full tgt

  on)

  SRC.src_col_name = tgt.tgt_col_name

  )

  )

  Select *.

  de)

  Select the case sensitive option

  When tgt_data_type! = src_data_type or tgt_data_len! = src_data_len or tgt_data_precision! = src_data_precision or tgt_data_scale! = src_data_scale or tgt_nullable! = src_nullable

  then 'alter table ' | tgt_table_name | 'Edit ' | tgt_col_name | ' ' || src_data_type | ' ' ||

  -case when src_data_type null ('DATE') then

  on the other

  case

  When src_data_type in ('VARCHAR', 'VARCHAR2')

  then ' (' |) NVL (to_char (src_data_len), ' ') | ') '

  otherwise decode (nvl (src_data_precision-1),-1, null, nvl (to_char (src_data_precision), ' ') |) ', ' || NVL (to_char (src_data_scale), ' ') | ')')

  end

  end

  ||

  cases where tgt_nullable = 'Y' then 'null '.

  of another end 'not null '.

  || tgt_cons

  When tgt_col_name is null

  then 'alter table ' | tgt_table_name | 'Add ' | src_col_name | ' ' ||  ' ' || ' ' || src_data_type | ' ' ||

  -case when src_data_type null ('DATE') then

  on the other

  case

  When src_data_type in ('VARCHAR', 'VARCHAR2')

  then ' ('| nvl (to_char (src_data_len), ' ') |) ') '

  otherwise decode (nvl (src_data_precision-1),-1, null, nvl (to_char (src_data_precision), ' ') |) ', ' || NVL (to_char (src_data_scale), ' ') | ')')

  end

  end

  || tgt_cons

  When src_col_name is null

  then 'alter table' | tgt_table_name: ' drop '. tgt_col_name

  end alter_statement

  of col_details

  )

  where alter_statement is not null;

  using (OracleConnection conn1 = new OracleConnection (connectionString))

  {

  conn1. Open();

  Dim myQuery = "";

  using (OracleCommand = new OracleCommand (myQuery, conn1) crtCommand)

  {

  richTextBox1.AppendText (output);

  richTextBox1.AppendText (crtCommand.ExecuteNonQuery (). (ToString());

  richTextBox1.AppendText (output);

  }

  }

  VR;

  myQuery=
  @"with src as
  (
  ...
  ";
  

  That means a @ before the beginning of a string literal mean? -C# Foire - Site Home - MSDN Articles

  as an example

  OracleCommand cmd = con.CreateCommand();
  cmd.CommandText = @"begin apps.mo_global.init('SQLAP'); begin apps.fnd_global.apps_initialize(5710, 20639, 200); end; end;";
  cmd.ExecuteNonQuery();
  

  richTextBox1.AppendText (crtCommand.ExecuteNonQuery (). (ToString());                            

  is this correct? Not sure

  as example try

   using (OracleConnection conn1 = new OracleConnection(connectionString))
  {
      conn1.Open();
  
      string myQuery = "......";                  
  
      using (OracleCommand crtCommand = new OracleCommand(myQuery, conn1))
          {
              richTextBox1.AppendText(Environment.NewLine);
              // richTextBox1.AppendText(crtCommand.ExecuteNonQuery().ToString());
  
  OracleDataReader reader = crtCommand.ExecuteReader();
  while (reader.Read())
    {
      richTextBox1.AppendText(reader.GetString(0));
      // may be also
      // richTextBox1.AppendText(Environment.NewLine);
    }
  
              richTextBox1.AppendText(Environment.NewLine);
  
          reader.Dispose();
          cmd.Dispose();
          }
  
      con.Dispose();
  }
  

• my computer is very slow to start up it will take 20 minutes so that it lights up. It wasn't like that when I got it. I did everything so he can go faster, but it used except if there's something I didn't do or I have viruses. Could you help me?

  Sometimes takes long start m wireless works and sometimes it doesn't. I could start it 3 times before that everything will work. It also freezes on me trying to get on it.

  You can have hardware failures. Repeatedly need to push the power button indicates a possible power supply problem, although other components could certainly be defective. So first make sure that the material is strong.

  http://www.elephantboycomputers.com/page2.html#Hardware_Tshoot

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