RE: How many times has an index been used?
Hi, Thanks for the replies to this question. Looks like I need = 8i or trawl through the v$sqlarea either by spending money or writing a simple bit of pl/sql. Thanks, Steve Wilkes npower [EMAIL PROTECTED] -Original Message- Sent: 29 May 2001 14:03 To: Multiple recipients of list ORACLE-L Cc: [EMAIL PROTECTED] Hi All, A cheaper solution to this is to use an AFTER LOGON trigger to set CREATE_STORED_OUTLINES to true. If the users have the CREATE ANY OUTLINE system privilege, you'll be able to see which indexes are being used in the DBA_OUTLINE_HINTS view. @ Regards, @ Steve Adams @ http://www.ixora.com.au/ @ http://www.christianity.net.au/ -Original Message- Sent: Tuesday, 29 May 2001 19:55 To: Multiple recipients of list ORACLE-L There is also one called The Big Picture - from Bit by Bit www.bitbybit.co.uk - that scans all source, and SQL, and stores all execution plans in a BDE database. It then scans through all the exectution plans to determine whether an index is used or not. It doesn't however tell you how many times the index has *actually* been used.. Mark -Original Message- Sent: Friday, May 25, 2001 09:18 To: Multiple recipients of list ORACLE-L There is commercial software for determining this. www.teleran.com www.pinecone.com Both rather spendy. Jared On Thursday 24 May 2001 06:10, Wilkes, Steve wrote: Hi, Does anyone know how to determine how many times an index has been used or if it has been used at all? I have seen previous attempts by taking snapshots of v$sqlarea and then automating an explain plan and extracting the information that way. I would have thought that there must be an x$ table that records this information somewhere? Any ideas? Thanks in advance. Steve Wilkes ___ Oracle DBA npower email:[EMAIL PROTECTED] This incoming e-mail (and any attachments) has been checked at npower, and has been found to be clean from any virus infection (using Sophos Sweep 3.45 + patches). npower Service Desk (internal telephone 187, external 01384 275454, or e-mail npower Postmasters [internally] or [EMAIL PROTECTED] [externally]) = This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify gpupower.co.uk or [EMAIL PROTECTED] This outgoing e-mail (and any attachments) has been checked (using Sophos Sweep 3.45 + patches) before leaving us (UK 08457 353637), and has been found to be clean from any virus infection. = -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Wilkes, Steve INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
Re: How many times has an index been used?
Steve, If you are going to pull code from v$sqlarea, you will also want to use v$sqltext. In that case, look up the paper at www.hotsos.com about joining v$sqltext and v$sqlarea, as the hash_value is defined as a different data type in each. This affects all releases prior to 8.0.5. Also, you have no doubt considered that you will need to capture the current execution plan for each to do this, so as to see what indexes are being used. Jared On Thursday 31 May 2001 03:10, Wilkes, Steve wrote: Hi, Thanks for the replies to this question. Looks like I need = 8i or trawl through the v$sqlarea either by spending money or writing a simple bit of pl/sql. Thanks, Steve Wilkes npower [EMAIL PROTECTED] -Original Message- Sent: 29 May 2001 14:03 To: Multiple recipients of list ORACLE-L Cc: [EMAIL PROTECTED] Hi All, A cheaper solution to this is to use an AFTER LOGON trigger to set CREATE_STORED_OUTLINES to true. If the users have the CREATE ANY OUTLINE system privilege, you'll be able to see which indexes are being used in the DBA_OUTLINE_HINTS view. @ Regards, @ Steve Adams @ http://www.ixora.com.au/ @ http://www.christianity.net.au/ -Original Message- Sent: Tuesday, 29 May 2001 19:55 To: Multiple recipients of list ORACLE-L There is also one called The Big Picture - from Bit by Bit www.bitbybit.co.uk - that scans all source, and SQL, and stores all execution plans in a BDE database. It then scans through all the exectution plans to determine whether an index is used or not. It doesn't however tell you how many times the index has *actually* been used.. Mark -Original Message- Sent: Friday, May 25, 2001 09:18 To: Multiple recipients of list ORACLE-L There is commercial software for determining this. www.teleran.com www.pinecone.com Both rather spendy. Jared On Thursday 24 May 2001 06:10, Wilkes, Steve wrote: Hi, Does anyone know how to determine how many times an index has been used or if it has been used at all? I have seen previous attempts by taking snapshots of v$sqlarea and then automating an explain plan and extracting the information that way. I would have thought that there must be an x$ table that records this information somewhere? Any ideas? Thanks in advance. Steve Wilkes ___ Oracle DBA npower email:[EMAIL PROTECTED] This incoming e-mail (and any attachments) has been checked at npower, and has been found to be clean from any virus infection (using Sophos Sweep 3.45 + patches). npower Service Desk (internal telephone 187, external 01384 275454, or e-mail npower Postmasters [internally] or [EMAIL PROTECTED] [externally]) = This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify gpupower.co.uk or [EMAIL PROTECTED] This outgoing e-mail (and any attachments) has been checked (using Sophos Sweep 3.45 + patches) before leaving us (UK 08457 353637), and has been found to be clean from any virus infection. = -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Jared Still INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
RE: How many times has an index been used?
There is also one called The Big Picture - from Bit by Bit www.bitbybit.co.uk - that scans all source, and SQL, and stores all execution plans in a BDE database. It then scans through all the exectution plans to determine whether an index is used or not. It doesn't however tell you how many times the index has *actually* been used.. Mark -Original Message- Sent: Friday, May 25, 2001 09:18 To: Multiple recipients of list ORACLE-L There is commercial software for determining this. www.teleran.com www.pinecone.com Both rather spendy. Jared On Thursday 24 May 2001 06:10, Wilkes, Steve wrote: Hi, Does anyone know how to determine how many times an index has been used or if it has been used at all? I have seen previous attempts by taking snapshots of v$sqlarea and then automating an explain plan and extracting the information that way. I would have thought that there must be an x$ table that records this information somewhere? Any ideas? Thanks in advance. Steve Wilkes ___ Oracle DBA npower email:[EMAIL PROTECTED] = This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify gpupower.co.uk or [EMAIL PROTECTED] This outgoing e-mail (and any attachments) has been checked (using Sophos Sweep 3.45 + patches) before leaving us (UK 08457 353637), and has been found to be clean from any virus infection. = -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Jared Still INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Mark Leith INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
RE: How many times has an index been used?
Hi All, A cheaper solution to this is to use an AFTER LOGON trigger to set CREATE_STORED_OUTLINES to true. If the users have the CREATE ANY OUTLINE system privilege, you'll be able to see which indexes are being used in the DBA_OUTLINE_HINTS view. @ Regards, @ Steve Adams @ http://www.ixora.com.au/ @ http://www.christianity.net.au/ -Original Message- Sent: Tuesday, 29 May 2001 19:55 To: Multiple recipients of list ORACLE-L There is also one called The Big Picture - from Bit by Bit www.bitbybit.co.uk - that scans all source, and SQL, and stores all execution plans in a BDE database. It then scans through all the exectution plans to determine whether an index is used or not. It doesn't however tell you how many times the index has *actually* been used.. Mark -Original Message- Sent: Friday, May 25, 2001 09:18 To: Multiple recipients of list ORACLE-L There is commercial software for determining this. www.teleran.com www.pinecone.com Both rather spendy. Jared On Thursday 24 May 2001 06:10, Wilkes, Steve wrote: Hi, Does anyone know how to determine how many times an index has been used or if it has been used at all? I have seen previous attempts by taking snapshots of v$sqlarea and then automating an explain plan and extracting the information that way. I would have thought that there must be an x$ table that records this information somewhere? Any ideas? Thanks in advance. Steve Wilkes ___ Oracle DBA npower email:[EMAIL PROTECTED] -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Steve Adams INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
Re: How many times has an index been used?
That is clever Steve. I'm gonna go play now. :) Jared On Tuesday 29 May 2001 07:00, Steve Adams wrote: Hi All, A cheaper solution to this is to use an AFTER LOGON trigger to set CREATE_STORED_OUTLINES to true. If the users have the CREATE ANY OUTLINE system privilege, you'll be able to see which indexes are being used in the DBA_OUTLINE_HINTS view. @ Regards, @ Steve Adams @ http://www.ixora.com.au/ @ http://www.christianity.net.au/ -Original Message- Sent: Tuesday, 29 May 2001 19:55 To: Multiple recipients of list ORACLE-L There is also one called The Big Picture - from Bit by Bit www.bitbybit.co.uk - that scans all source, and SQL, and stores all execution plans in a BDE database. It then scans through all the exectution plans to determine whether an index is used or not. It doesn't however tell you how many times the index has *actually* been used.. Mark -Original Message- Sent: Friday, May 25, 2001 09:18 To: Multiple recipients of list ORACLE-L There is commercial software for determining this. www.teleran.com www.pinecone.com Both rather spendy. Jared On Thursday 24 May 2001 06:10, Wilkes, Steve wrote: Hi, Does anyone know how to determine how many times an index has been used or if it has been used at all? I have seen previous attempts by taking snapshots of v$sqlarea and then automating an explain plan and extracting the information that way. I would have thought that there must be an x$ table that records this information somewhere? Any ideas? Thanks in advance. Steve Wilkes ___ Oracle DBA npower email:[EMAIL PROTECTED] -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Jared Still INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
Re: How many times has an index been used?
There is commercial software for determining this. www.teleran.com www.pinecone.com Both rather spendy. Jared On Thursday 24 May 2001 06:10, Wilkes, Steve wrote: Hi, Does anyone know how to determine how many times an index has been used or if it has been used at all? I have seen previous attempts by taking snapshots of v$sqlarea and then automating an explain plan and extracting the information that way. I would have thought that there must be an x$ table that records this information somewhere? Any ideas? Thanks in advance. Steve Wilkes ___ Oracle DBA npower email:[EMAIL PROTECTED] = This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify gpupower.co.uk or [EMAIL PROTECTED] This outgoing e-mail (and any attachments) has been checked (using Sophos Sweep 3.45 + patches) before leaving us (UK 08457 353637), and has been found to be clean from any virus infection. = -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Jared Still INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
