STATISTICS_LEVEL in Font

Printing QR Code in Font STATISTICS_LEVEL

STATISTICS_LEVEL
Encoding QR Code In None
Using Barcode encoder for Font Control to generate, create QR-Code image in Font applications.
www.OnBarcode.com
PDF417 Creator In None
Using Barcode generation for Font Control to generate, create PDF-417 2d barcode image in Font applications.
www.OnBarcode.com
The STATISTICS_LEVEL parameter can take three values. The value of this parameter has a bearing on the TIMED_STATISTICS parameter. You can see this dependency clearly in the following summary: If the STATISTICS_LEVEL parameter is set to TYPICAL or ALL, timed statistics are collected automatically for the database. If STATISTICS_LEVEL is set to BASIC, then TIMED_STATISTICS must be set to TRUE for statistics collection. Even if STATISTICS_LEVEL is set to TYPICAL or ALL, you can keep the database from tracing by using the ALTER SESSION statement to set TIMED_STATISTICS to FALSE.
Creating USS-128 In None
Using Barcode printer for Font Control to generate, create UCC-128 image in Font applications.
www.OnBarcode.com
UPC-A Supplement 2 Creation In None
Using Barcode printer for Font Control to generate, create GTIN - 12 image in Font applications.
www.OnBarcode.com
TIMED_STATISTICS
QR Code ISO/IEC18004 Creation In None
Using Barcode creator for Font Control to generate, create QR Code image in Font applications.
www.OnBarcode.com
Draw GTIN - 13 In None
Using Barcode printer for Font Control to generate, create European Article Number 13 image in Font applications.
www.OnBarcode.com
The TIMED_STATISTICS parameter is FALSE by default, if the STATISTICS_LEVEL parameter is set to BASIC. In a case like this, to collect performance statistics such as CPU and execution time, set the value of the TIMED_STATISTICS parameter to TRUE in the init.ora file or SPFILE, or use the ALTER SYSTEM SET TIMED_STATISTICS=TRUE statement to turn timed statistics on instance-wide. You can also do this at the session level by using the ALTER SESSION statement as follows: SQL> ALTER SESSION SET timed_statistics = true; Session altered.
ECC200 Creator In None
Using Barcode maker for Font Control to generate, create DataMatrix image in Font applications.
www.OnBarcode.com
Code 11 Printer In None
Using Barcode drawer for Font Control to generate, create Code 11 image in Font applications.
www.OnBarcode.com
CHAPTER 21 IMPROVING DATABASE PERFORMANCE: SQL QUERY OPTIMIZATION
Denso QR Bar Code Scanner In Visual C#
Using Barcode reader for Visual Studio .NET Control to read, scan read, scan image in .NET framework applications.
www.OnBarcode.com
Creating QR-Code In .NET
Using Barcode drawer for .NET framework Control to generate, create QR Code image in Visual Studio .NET applications.
www.OnBarcode.com
USER_DUMP_DEST
Generating UPC-A Supplement 5 In Objective-C
Using Barcode creation for iPhone Control to generate, create GTIN - 12 image in iPhone applications.
www.OnBarcode.com
GS1 - 13 Decoder In Java
Using Barcode reader for Java Control to read, scan read, scan image in Java applications.
www.OnBarcode.com
USER_DUMP_DEST is the directory on your server where your SQL Trace files will be sent. By default you use the $ORACLE_HOME/admin/database_name/udump directory as your directory for dumping SQL trace files. If you want non-DBAs to be able to read this file, make sure the directory permissions authorize reading by others. Alternatively, you can set the parameter TRACE_FILES_ PUBLIC=TRUE to let others read the trace files on UNIX systems. Make sure the destination points to a directory that has plenty of free space to accommodate large trace files. USER_DUMP_DEST is a dynamic parameter, so you can also change it using the ALTER SYSTEM command, as follows: SQL> ALTER SYSTEM SET user_dump_dest='c:\oraclent\oradata'; System altered. SQL>
Data Matrix 2d Barcode Drawer In Java
Using Barcode creator for Android Control to generate, create Data Matrix image in Android applications.
www.OnBarcode.com
Print EAN-13 In None
Using Barcode printer for Software Control to generate, create EAN / UCC - 13 image in Software applications.
www.OnBarcode.com
MAX_DUMP_FILE_SIZE
PDF417 Decoder In C#.NET
Using Barcode reader for .NET Control to read, scan read, scan image in .NET applications.
www.OnBarcode.com
Barcode Generation In Objective-C
Using Barcode drawer for iPhone Control to generate, create Barcode image in iPhone applications.
www.OnBarcode.com
Some traces could result in large trace files in a big hurry, so make sure your MAX_DUMP_FILE_SIZE initialization parameter is set to a high number. The default size of this parameter may be too small for some traces. If the trace fills the dump file, it won t terminate, but the information in the file will be truncated.
UPC A Generator In None
Using Barcode drawer for Software Control to generate, create GS1 - 12 image in Software applications.
www.OnBarcode.com
Scanning UPC-A In None
Using Barcode reader for Software Control to read, scan read, scan image in Software applications.
www.OnBarcode.com
Enabling SQL Trace
Drawing QR Code In .NET
Using Barcode creation for ASP.NET Control to generate, create QR Code JIS X 0510 image in ASP.NET applications.
www.OnBarcode.com
Painting Code 128A In .NET
Using Barcode printer for Reporting Service Control to generate, create ANSI/AIM Code 128 image in Reporting Service applications.
www.OnBarcode.com
To use SQL Trace and TKPROF, first you need to enable the Trace facility. You can do this at the instance level by using the ALTER SESSION statement or the DBMS_SESSION package. You can trace the entire instance by either including the line SQL_TRACE=TRUE in your init.ora file or SPFILE or by using the ALTER SYSTEM command to set SQL_TRACE to TRUE. Tracing the entire instance isn t recommended, because it generates a huge amount of tracing information, most of which is useless for your purpose. The statement that follows shows how to turn tracing on from your session using the ALTER SESSION statement: SQL> ALTER SESSION SET sql_trace=true; Session altered. SQL> The following example shows how you set SQL_TRACE to TRUE using the DBMS_SESSION package: SQL> EXECUTE sys.dbms_session.set_sql_trace(true); PL/SQL procedure successfully completed. SQL> Often, users request the DBA to help them trace their SQL statements. You can use the DBMS_ SYSTEM.SET_SQL_TRACE_IN_SESSION procedure to set tracing on in another user s session. Once the ALTER SESSION set sql_trace statement or the DBMS_SESSION package are used to start tracing in a user s session, all statements are traced until you use the ALTER SESSION statement or the DBMS_SESSION package to turn tracing off (replace true with false in either of the preceding statements). Alternatively, when the user logs off, tracing is automatically stopped for that user.
Interpreting the Trace Files with TKPROF
Once you set tracing on for a session, any SQL statement that is issued during that session is traced and the output stored in the directory (udump) specified by the user_dump_dest parameter in your init.ora file or SPFILE. The filename has the format db_name_ora_nnnnn.trc, where nnnnn is usually a four- or five-digit number. For example, the sample trace file in our example is named pasx_ora_16340.trc. If you go to the user dump destination directory immediately after a trace session is completed, the most recent file is usually the file output by the sql_trace command.
Copyright © OnBarcode.com . All rights reserved.