Oracle Historical SQL Search

Hi,

Sometimes customer ask you that why spesific sql is running long time or consuming lots of resource.

 

Oracle DBA should find this sql’s SQL_ID in the Oracle database and monitor this SQL how it is running.

To find any SQL’s SQL_ID and other SQL informations in the cache, use following SQL. Following query will find if related SQL exists in the cache, if not exists it will not find.

select * from gv$sql where sql_text like '%DEVECI%';

 

To search any SQL historical in Oracle database you may use following SQL. Just change begin Interval time column and SQL_TEXT column.

 

SELECT STAT.SQL_ID, SQL_TEXT, PLAN_HASH_VALUE, PARSING_SCHEMA_NAME, ELAPSED_TIME_DELTA, 
STAT.SNAP_ID, SS.END_INTERVAL_TIME, EXECUTIONS_DELTA FROM DBA_HIST_SQLSTAT STAT, 
DBA_HIST_SQLTEXT TXT, DBA_HIST_SNAPSHOT SS WHERE STAT.SQL_ID = TXT.SQL_ID AND
STAT.DBID = TXT.DBID AND SS.DBID = STAT.DBID AND SS.INSTANCE_NUMBER = STAT.INSTANCE_NUMBER 
AND STAT.SNAP_ID = SS.SNAP_ID AND
SS.BEGIN_INTERVAL_TIME >= sysdate-31 AND
UPPER(SQL_TEXT) LIKE '%DEVECI%' ORDER BY ELAPSED_TIME_DELTA DESC;

 

 

 

 

Do you want to learn Oracle Database Performance Tuning detailed, then read the following articles.

https://ittutorial.org/oracle-database-performance-tuning-tutorial-12-what-is-the-automatic-sql-tuning-and-how-to-automated-sql-tuning/ 

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About Mehmet Salih Deveci

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I am Founder of SysDBASoft IT and IT Tutorial and Certified Expert about Oracle & SQL Server database, Goldengate, Exadata Machine, Oracle Database Appliance administrator with 10+years experience. I have OCA, OCP, OCE RAC Expert Certificates I have worked 100+ Banking, Insurance, Finance, Telco and etc. clients as a Consultant, Insource or Outsource. I have done 200+ Operations in this clients such as Exadata Installation & PoC & Migration & Upgrade, Oracle & SQL Server Database Upgrade, Oracle RAC Installation, SQL Server AlwaysOn Installation, Database Migration, Disaster Recovery, Backup Restore, Performance Tuning, Periodic Healthchecks. I have done 2000+ Table replication with Goldengate or SQL Server Replication tool for DWH Databases in many clients. If you need Oracle DBA, SQL Server DBA, APPS DBA,  Exadata, Goldengate, EBS Consultancy and Training you can send my email adress mehmetsalih.deveci@outlook.com. -                                                                                                                                                                                                                                                 - Oracle DBA, SQL Server DBA, APPS DBA,  Exadata, Goldengate, EBS ve linux Danışmanlık ve Eğitim için  mehmetsalih.deveci@outlook.com a mail atabilirsiniz.

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One comment

  1. blank

    I am incessantly thought about this, thankyou for posting.

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