- SQL Performance Analyzer Active Report
SQL Performance Analyzer (SPA), a key feature of the Real Application Testing option introduced in Oracle Database 11g, can predict and quantify SQL performance improvements and regressions caused by system changes such as upgrading a database, adding new indexes, changing database parameters, collecting optimizer statistics, etc. SQL Performance Analyzer provides a granular view of the impact of changes on SQL execution plans and execution statistics by running the SQL statements on a production or test system in isolation before and after a change. SPA compares the SQL execution result, before and after the change, and generates a report outlining the net benefit on the SQL workload due the change as well as the set of regressed SQL statements. For regres
with 11g analyzer application database oracle performance predict real sql testing
- sqlmonitor.html
Oracle Database 11g: Real-Time SQL Monitoring Real-Time SQL Monitoring, introduced in Oracle Database 11g, provides a very effective way to identify run-time performance problems with resource intensive long-running and parallel SQL statements. Interactive Enterprise Manager screens display details of SQL execution using new, fine-grained SQL statistic that are tracked out-of-the-box with no performance penalty to production systems. Statistics at each step of the execution plan are tracked by key performance metrics, including elapsed time, CPU time, number of reads and writes, I/O wait time and various other wait times. This allows DBAs to analyze SQL execution more deeply than pre
with 11g database display enterprise execution manager monitoring oracle performance real-time run-time sql statements statistic
- Subquery Factoring (4)
Oracle Scratchpad Jonathan Lewis on subquery factoring
with cbo factoring lewis oracle scratchpad subquery troubleshooting tuning
- Surachart Opun's Blog: ORA-29786: SIHA attribute GET failed with error [Attribute 'SPFILE' sts[200] lsts[0]]
SQL> create spfile='+DATA' from memory; create spfile='+DATA' from pfile * ERROR at line 1: ORA-29786: SIHA attribute GET failed with error [Attribute 'SPFILE' sts[200] lsts[0]]
with attribute error ora-29786 pfile siha spfile
- The Oracle PL/SQL WITH Clause
with clause factoring oracle plsql psoug subquery with
- TZ_OFFSET
shows how offset can vary depending upon daylight savings time
with database dst est offset oracle timezone tz_offset
- Using Dbms_Advisor.Tune_Mview To Optimize Materialized Views For Fast Refresh (Doc ID 249993.1)
Due to the restrictions on fast refresh, the original materialized view can only use fast refresh after inserts since there is no count(*) in the materialized view defining statement.
with count defining dml due error fast inserts materialized ora-32314 original refresh restrictions statement view
Note: Restrictions of fast refresh of Materialized Views after DML.
- Using Oracle Virtual Private Database to Control Data Access
database views to understand policies, functions, etc.
with 11gr2 fgac oracle package policy_function policy_name policy_type sys_context vpd
- Using Sql Tuning Advisor – Sql Profile
Chen Guang's Blog Using Sql Tuning Advisor – Sql Profile
with advisor dbms_sqltune scripts sql task tuning
- Virtual Column Partitioning Tips
virtual column and partition by this derived column
with 11gr2 column derived oracle oracle11g partition subpartition virtual
- Vish Vangapally's Blog
Vangapally
with 11g dba learning listener network oracle scripts sql vangapally vish
- 10.5 Specifying Partitions :: Chapter 10. Partitioning :: Mastering Oracle SQL :: SQL :: eTutorials.org
SUBPARTITION clause to focus on a single subpartition of the table.
with 11g 11gr2 clause focus oracle partition partition_extension single subpartition table
- Ask Tom "Pivot Query"
with 11g asktom db kyte oracle pivot query tom
- Bloom filters for DBAs
Julian Dontcheff's Database Blog
with blog bloom database filters julian
- Convert Oracle Timestamp to STRING - Oracle Forums
SELECT TO_CHAR (SYSTIMESTAMP, 'YYYY-MON-DD HH24:MI:SS') AS my_date FROM DUAL
with my_date systimestamp to_char
- DBMS_PARALLEL_EXECUTE
parallel control of DML
with 11g data dbms dbms_parallel_execute incremental loading oracle package parallel
- Dropping a disk in an ASM Disk Group | jarneil
with system:unfiled
- How do adaptive cursor sharing and SQL Plan Management interact? (Oracle Optimizer)
How do adaptive cursor sharing and SQL Plan Management interact?
with acs adaptive aware bind bind_aware cursor interact management plan profile sharing spm sql
- How Parallel Execution Works
Oracle doc
with controlling execution oracle parallel
- How to Use Oracle VM VirtualBox Templates
How to download, import, and configure Oracle VM VirtualBox Templates in Oracle VM VirtualBox updated 2012
with oracle virtualbox vm
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