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	<title>Ask TEM  Dba</title>
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	<link>http://asktemdba.ijachouf.com</link>
	<description>Oracle DBA Tips Corner</description>
	<lastBuildDate>Thu, 11 Mar 2010 15:26:41 +0000</lastBuildDate>
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		<title>vi Quick Reference</title>
		<link>http://asktemdba.ijachouf.com/vi-quick-reference/</link>
		<comments>http://asktemdba.ijachouf.com/vi-quick-reference/#comments</comments>
		<pubDate>Thu, 11 Mar 2010 15:26:41 +0000</pubDate>
		<dc:creator>sysdba</dc:creator>
				<category><![CDATA[Tip]]></category>

		<guid isPermaLink="false">http://asktemdba.ijachouf.com/?p=190</guid>
		<description><![CDATA[This table is taken from Sun Microsystems' User's Guide: Getting Started (. 

		 Starting vi 

vi filename 		 open or create file 

vi +18 filename 		 open to line 18 

vi +/"mustard" filename 		 open file to first occurence of    ``mustard" 

vi -r filename 		  recover crashed file 

view filename 		 [...]]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Tuning Oracle&#8217;s Buffer Cache</title>
		<link>http://asktemdba.ijachouf.com/tuning-oracles-buffer-cache/</link>
		<comments>http://asktemdba.ijachouf.com/tuning-oracles-buffer-cache/#comments</comments>
		<pubDate>Thu, 04 Mar 2010 13:41:09 +0000</pubDate>
		<dc:creator>sysdba</dc:creator>
				<category><![CDATA[Tuning]]></category>

		<guid isPermaLink="false">http://asktemdba.ijachouf.com/tuning-oracles-buffer-cache/</guid>
		<description><![CDATA[Oracle maintains its own buffer cache inside the system global area (SGA) for each instance. A properly sized buffer cache can usually yield a cache hit ratio over 90%, meaning that nine requests out of ten are satisfied without going to disk.
If a buffer cache is too small, the cache hit ratio will be small [...]]]></description>
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		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>RedHat5 rpmdb-redhat</title>
		<link>http://asktemdba.ijachouf.com/redhat5-rpmdb-redhat/</link>
		<comments>http://asktemdba.ijachouf.com/redhat5-rpmdb-redhat/#comments</comments>
		<pubDate>Mon, 01 Feb 2010 14:57:47 +0000</pubDate>
		<dc:creator>sysdba</dc:creator>
				<category><![CDATA[Tip]]></category>

		<guid isPermaLink="false">http://asktemdba.ijachouf.com/?p=187</guid>
		<description><![CDATA[Place all the rpm packages in one local sub-directory (lets say RHEL5) which
does not have and sub-directorires and do;
rpm -ivh createrepo*.rpm
createrepo /RHEL5
Then in the /etc/yum.repos.d directory place a file named something like
RedHat-media.repo which reads like;
[rh5media]
name=Red Hat-$releasever &#8211; Media
baseurl=file:///RHEL5
gpgcheck=0
enabled=0
Then you can type stuff like:
yum install nom &#8211;enablerepo=rh5media
]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Adding a new disk to a VMWare Virtual Machine in Linux</title>
		<link>http://asktemdba.ijachouf.com/adding-a-new-disk-to-a-vmware-virtual-machine-in-linux/</link>
		<comments>http://asktemdba.ijachouf.com/adding-a-new-disk-to-a-vmware-virtual-machine-in-linux/#comments</comments>
		<pubDate>Mon, 01 Feb 2010 10:56:17 +0000</pubDate>
		<dc:creator>sysdba</dc:creator>
				<category><![CDATA[Vmware]]></category>

		<guid isPermaLink="false">http://asktemdba.ijachouf.com/?p=181</guid>
		<description><![CDATA[I’ve been using VMWare for a while now and I always get asked some common questions about it. One of those is how to add a new virtual disk to a Linux virtual machine. So in response to that, here are the steps to adding a new SCSI based virtual disk to a CentOS Linux [...]]]></description>
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		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>Linux Commands &#8211; A practical reference</title>
		<link>http://asktemdba.ijachouf.com/linux-commands-a-practical-reference/</link>
		<comments>http://asktemdba.ijachouf.com/linux-commands-a-practical-reference/#comments</comments>
		<pubDate>Fri, 29 Jan 2010 13:55:34 +0000</pubDate>
		<dc:creator>sysdba</dc:creator>
				<category><![CDATA[Unix]]></category>

		<guid isPermaLink="false">http://asktemdba.ijachouf.com/?p=173</guid>
		<description><![CDATA[This is a linux command line reference for common operations.
Examples marked with • are valid/safe to paste without modification into a terminal, so
you may want to keep a terminal window open while reading this so you can cut &#38; paste.
All these commands have been tested both on Fedora and Ubuntu.



Command
Description


•
apropos whatis
Show commands pertinent to string. [...]]]></description>
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		<item>
		<title>Export TABLE Records into Flat File with INSERTs</title>
		<link>http://asktemdba.ijachouf.com/export-table-records-into-flat-file-with-inserts/</link>
		<comments>http://asktemdba.ijachouf.com/export-table-records-into-flat-file-with-inserts/#comments</comments>
		<pubDate>Mon, 18 Jan 2010 13:46:05 +0000</pubDate>
		<dc:creator>sysdba</dc:creator>
				<category><![CDATA[Tips]]></category>
		<category><![CDATA[Export TABLE Records into Flat File with INSERTs]]></category>

		<guid isPermaLink="false">http://asktemdba.ijachouf.com/?p=168</guid>
		<description><![CDATA[The GENERATE_STMT procedure of this UTILITY package  needs four parameters i.e. TABLE NAME, WHERE CLAUSE, PATH WHERE Developer  WANT FILE TO BE GENERATED and FILE NAME. WHERE CLAUSE value must be passed  in the form of quotes. For e.g. &#8216;WHERE ename = &#8216; &#124;&#124; &#8221;&#8221; &#124;&#124; &#8216;SCOTT&#8217; &#124;&#124; &#8221;&#8221;
This procedure writes an [...]]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Trigger to Prevent Dropping Objects</title>
		<link>http://asktemdba.ijachouf.com/trigger-to-prevent-dropping-objects/</link>
		<comments>http://asktemdba.ijachouf.com/trigger-to-prevent-dropping-objects/#comments</comments>
		<pubDate>Mon, 18 Jan 2010 13:42:16 +0000</pubDate>
		<dc:creator>sysdba</dc:creator>
				<category><![CDATA[Security]]></category>
		<category><![CDATA[Trigger to Prevent Dropping Objects]]></category>

		<guid isPermaLink="false">http://asktemdba.ijachouf.com/?p=163</guid>
		<description><![CDATA[This trigger secures objects, preventing a user from dropping them by mistake. To begin, create a table for the example below called secured_objects with a column objectname, with datatype varchar2(20). Insert a record into this table with a value, the name of the object, which should not get dropped. Then, create the following trigger:

create or [...]]]></description>
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		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>Find Invalid Synonyms</title>
		<link>http://asktemdba.ijachouf.com/find-invalid-synonyms/</link>
		<comments>http://asktemdba.ijachouf.com/find-invalid-synonyms/#comments</comments>
		<pubDate>Mon, 18 Jan 2010 13:40:03 +0000</pubDate>
		<dc:creator>sysdba</dc:creator>
				<category><![CDATA[OraERR]]></category>
		<category><![CDATA[Find Invalid Synonyms]]></category>

		<guid isPermaLink="false">http://asktemdba.ijachouf.com/?p=161</guid>
		<description><![CDATA[&#8220;ORA-00980: synonym translation is no longer valid&#8221; is a common error encountered in a development environment. This can happen for many reasons. Some of them are
1. You created a synonym on non-existing object by mistake. For example, you created a synonym on SCOTT.DEPT where either the SCOTT schema in not present or the DEPT table [...]]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Find Full Table Scans</title>
		<link>http://asktemdba.ijachouf.com/find-full-table-scans/</link>
		<comments>http://asktemdba.ijachouf.com/find-full-table-scans/#comments</comments>
		<pubDate>Mon, 18 Jan 2010 13:36:11 +0000</pubDate>
		<dc:creator>sysdba</dc:creator>
				<category><![CDATA[Tuning]]></category>
		<category><![CDATA[Find Full Table Scans]]></category>

		<guid isPermaLink="false">http://asktemdba.ijachouf.com/?p=158</guid>
		<description><![CDATA[This query provides a list of queries (1,000 characters only) involved in full table scans. The total number of rows and blocks for each table is also displayed so that you can determine whether the full scan is degrading performance.
select sp.object_owner,sp.object_name,
(select sql_text from v$sqlarea sa
where sa.address = sp.address
and sa.hash_value =sp.hash_value) sqltext,
(select executions from v$sqlarea sa
where [...]]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Instance Background Processes Information</title>
		<link>http://asktemdba.ijachouf.com/instance-background-processes-information/</link>
		<comments>http://asktemdba.ijachouf.com/instance-background-processes-information/#comments</comments>
		<pubDate>Mon, 18 Jan 2010 13:31:35 +0000</pubDate>
		<dc:creator>sysdba</dc:creator>
				<category><![CDATA[Session]]></category>
		<category><![CDATA[Instance Background Processes Information]]></category>

		<guid isPermaLink="false">http://asktemdba.ijachouf.com/?p=155</guid>
		<description><![CDATA[This script displays instance background process information. The script works when the database is MOUNTed or OPENed.

-- Oracle 8I
select
        A.SID,
        A.SERIAL#,
        A.PROGRAM,
        P.PID,
     [...]]]></description>
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		<slash:comments>0</slash:comments>
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