Vishal Gupta's Blog http://www.vishalgupta.com/blog Oracle encounters Sun, 14 Feb 2010 22:46:10 +0000 http://wordpress.org/?v=2.9.2 en hourly 1 V$SQL_HINT http://www.vishalgupta.com/blog/2009/05/02/vsql_hint/ http://www.vishalgupta.com/blog/2009/05/02/vsql_hint/#comments Sat, 02 May 2009 20:17:26 +0000 Vishal Gupta http://www.vishalgupta.com/blog/?p=134 In case you wanted to know which Oracle version a particular SQL hint is applicable in or was introduced in. You can query V$SQL_HINT introduced in 11g for that. It holds even historical information. Column “version” gives oracle version in which a particular hint was introduced and version_outline probably gives upto which version upto which

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]]> http://www.vishalgupta.com/blog/2009/05/02/vsql_hint/feed/ 0 Log File Write And Waits http://www.vishalgupta.com/blog/2008/12/02/log-file-write-and-waits/ http://www.vishalgupta.com/blog/2008/12/02/log-file-write-and-waits/#comments Tue, 02 Dec 2008 20:12:12 +0000 Vishal Gupta http://www.vishalgupta.com/blog/?p=120 Here are some interesting articles regarding log file writing and associated I/O waits.

Jonanthan Lewis – Log File Write

Riyaj Shamsudeen – Log file sync tuning

Christian Bilien – Log file sync wait

]]> http://www.vishalgupta.com/blog/2008/12/02/log-file-write-and-waits/feed/ 0 Slow Statspack Snapshots http://www.vishalgupta.com/blog/2008/10/10/slow-statspack-snapshots/ http://www.vishalgupta.com/blog/2008/10/10/slow-statspack-snapshots/#comments Fri, 10 Oct 2008 15:24:29 +0000 Vishal Gupta http://www.vishalgupta.com/blog/?p=112  

For quite some time we had been experiencing slow statspack snapshots, taking about 300sec. In a worst case scenario it took 7 hours. My colleague was investigating it, it turned out that on this particular database “_optimizer_ignore_hints”

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]]> http://www.vishalgupta.com/blog/2008/10/10/slow-statspack-snapshots/feed/ 2 Loading File into a Blob http://www.vishalgupta.com/blog/2008/09/23/loading-file-into-a-blob/ http://www.vishalgupta.com/blog/2008/09/23/loading-file-into-a-blob/#comments Tue, 23 Sep 2008 10:07:36 +0000 Vishal Gupta http://www.vishalgupta.com/?p=105  

 

Yesterday I received a request from a developer to load file into a BLOB. To be honest I have never loaded a file into a BLOB in past. I had some idea that I would have to use DBMS_LOB pl/sql

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]]> http://www.vishalgupta.com/blog/2008/09/23/loading-file-into-a-blob/feed/ 4 Slow drop user http://www.vishalgupta.com/blog/2008/08/24/slow-drop-user/ http://www.vishalgupta.com/blog/2008/08/24/slow-drop-user/#comments Sun, 24 Aug 2008 02:04:08 +0000 Vishal Gupta http://vishalgupta.com/blog/?p=15 For past 3 weeks i was covering for a project dedicated DBA who had gone on leave for 3 weeks (some people are just lucky). Its an Oracle Peoplesoft General Ledger application on Oracle 10.2.0.3 database. Lot of copies of application are hosted in same database as multiple copies for different stages of software lifecyle.

I

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]]> http://www.vishalgupta.com/blog/2008/08/24/slow-drop-user/feed/ 4 My first post http://www.vishalgupta.com/blog/2008/08/23/my-first-post/ http://www.vishalgupta.com/blog/2008/08/23/my-first-post/#comments Sat, 23 Aug 2008 17:53:30 +0000 Vishal Gupta http://vishalgupta.com/wordpress/?p=3 Finally i managed to start my own blog. I had been thinking about starting my own blog on my website for some time. But somehow it never took off. I am pleased that its up and running….

Watch this space for some interesting oracle reading.

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