What is SQL profile in Oracle 11g?
A SQL profile is a set of auxiliary information specific to a SQL statement. Conceptually, a SQL profile is to a SQL statement what statistics are to a table or index. The database can use the auxiliary information to improve execution plans.
Where can I find SQL profile in Oracle?
SQL Profile is used by Optimizer for use more efficient execution plan for the SQL Query to make in accepted State. It is found in DBA_SQL_PROFILES view.
How do I view SQL profiles in SQL?
Oracle SQL profile
- Run SQL tuning advisor. Run the following SQL tuning advisor code for sql_id, 6dkrnbx1zdwy38 :
- Accept the sql_profile. Run the following code to accept the sql_profile:
- Check the name of the sql_profile. Use the following query to check the sql_profile name:
- Disable the sql_profile.
- Drop the sql_profile.
How do I create a SQL profile?
How to Create Custom SQL Profile
- Step 1: Review the mail.html.
- Step 2: Run COE_XFR_SQL_PROFILE.
- Step 3: Create Custome SQL Profile.
- Step 4: Verif is it using SQL_PROFILE.
- Step 5: Flushing a Single SQL Statement from Library Cache (Only if required)
What is difference between SQL profile and SQL baseline?
So, SQL profiles provide additional information to the optimizer to help select the best plan; they don’t constrain the optimizer to any specific plan, which is why they can be shared. SQL plan baselines, on the other hand, constrain the optimizer to only select from a set of accepted plans.
What is SQL Profiler trace?
SQL Server Profiler is an interface to create and manage traces and analyze and replay trace results. Events are saved in a trace file that can later be analyzed or used to replay a specific series of steps when diagnosing a problem. SQL Trace and SQL Server Profiler are deprecated. The Microsoft.
What is the difference between SQL baseline and SQL profile?
What is SQL Profiler?
What is SQL profiling?
SQL Server Profiler is an interface to create and manage traces and analyze and replay trace results. Events are saved in a trace file that can later be analyzed or used to replay a specific series of steps when diagnosing a problem. SQL Trace and SQL Server Profiler are deprecated. The Microsoft. SqlServer.
What is difference between SQL profile and SQL baseline in Oracle?
What is SQL profile and baseline?
You should use SQL profiles if you just want to help the optimizer in its costing process this approach can be very useful in cases where you want to system to adapt quickly to changes like new object stats. SQL baselines should be used where you specifically want to control which plans should be used by the optimizer.
How use SQL Profiler for performance tuning in Oracle?
Optimize Queries with Oracle SQL Profiler
- Compare query profiling results to determine whether query execution time has been reduced after the change.
- Detect potential bottlenecks that may slow down query performance.
- Analyze the EXPLAIN plan and track session statistics.
Why we use SQL Profiler?
What is SQL Tuning Advisor in Oracle?
The SQL Tuning Advisor analyzes high-volume SQL statements and offers tuning recommendations. It takes one or more SQL statements as an input and invokes the Automatic Tuning Optimizer to perform SQL tuning on the statements. It can run against any given SQL statement.
What is the difference between SQL profile and baseline?
How do I analyze a trace File in Oracle?
Using the SQL Trace Facility and TKPROF
- Set initialization parameters for trace file management.
- Enable the SQL Trace facility for the desired session, and run the application.
- Run TKPROF to translate the trace file created in Step 2 into a readable output file.
- Interpret the output file created in Step 3.
Are there any books about Oracle Database 11g?
If you are familiar with earlier Oracle releases and are moving to Oracle Database 11 g, these books describe the new features, and explain how to upgrade your database. Build applications around Oracle databases using the languages and platforms of your choice. Each page in the library lists the essential books in a specific topic area first.
What is the support documentation for Oracle Database?
Supporting documentation treats advanced topics. In general, the 2 Day + books refer you to these topics when needed. Describes Oracle Database architecture and essential topics for database administrators and developers. Download As… Describes how to create, configure, and administer an Oracle database.
How are SQL profiles used by the database?
The use of SQL profiles by the database is transparent to the user. A SQL profile is a collection of auxiliary statistics on a query, including all tables and columns referenced in the query. The profile is stored in the data dictionary. The optimizer uses this information during optimization to determine the most optimal plan.
What is a SQL profile in Oracle Enterprise Manager?
If a statement has multiple plans in a SQL plan baseline, then a SQL profile is useful because it enables the optimizer to choose the lowest-cost plan in the baseline. Oracle Enterprise Manager Cloud Control (Cloud Control) usually handles SQL profiles as part of automatic SQL tuning.