Tanel & Kevin, Thanks for the replies. Very helpful. I am using version 9.2.0.3. You both confirmed what I thought I should do.
thanks again. Tom Mercadante Oracle Certified Professional -----Original Message----- Sent: Tuesday, September 30, 2003 5:04 PM To: Multiple recipients of list ORACLE-L Hi! On which version you are? I would create fairly large extents, 64MB for example. LOBs are stored in chunks anyway, extent size doesn't matter that much. One issue is, if you create very large extent size, you might waste some space in LOB index which is a separate, smaller segment (but is always stored with LOB data segment in 9i). But your LOBs will work with 64k extent sizes as well, but that way you might lose some benefit on multiblock direct reads. Btw, if you use "enable storage in row" then LOB index entries are always stored in row, which means for smaller LOBs which don't fit inline, no LOB index lookup is needed (for large ones I believe there still is, because large LOBs can't be addressed with small inline inode structure). If your average lob size is in megabytes, I'd put them into 16k or 32k tablespaces, away from regular block size and create a different buffer pool for them - if you are using "CACHE" type lobs. That way they won't affect LRU mechanisms for "normal" data buffers. Tanel. ----- Original Message ----- To: "Multiple recipients of list ORACLE-L" <[EMAIL PROTECTED]> Sent: Tuesday, September 30, 2003 11:24 PM > All, > > I'm being given a requirement to store a BLOB column in the database. I'm > being told that the average size of the file (it's a PDF) is 12,000 K. I'm > assuming that I should store this column in a separate tablespace from the > table data. If I use an LMT tablespace, what should I use for the uniform > allocation size? Should I use 12,000 K or something larger to store one PDF > per segment? Am I all wrong here? > > thanks in advance > > Tom Mercadante > Oracle Certified Professional > > -- > Please see the official ORACLE-L FAQ: http://www.orafaq.net > -- > Author: Mercadante, Thomas F > INET: [EMAIL PROTECTED] > > Fat City Network Services -- 858-538-5051 http://www.fatcity.com > San Diego, California -- Mailing list and web hosting services > --------------------------------------------------------------------- > 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.net -- Author: Tanel Poder INET: [EMAIL PROTECTED] Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- 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.net -- Author: Mercadante, Thomas F INET: [EMAIL PROTECTED] Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- 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).
