RE: CLOB

Tanel/Original poster,

Let me add one more issue about LOBs - My understanding is that rollback information for LOB changes is allocated from the LOB segment itself, and not from system UNDO or RBS. This is controlled by the PCTVERSION parameter - read more about it in the Concepts and SQL Reference manuals... The offshoot is that the space consumed by LOBs will increase when there are updates, depending on PCTVERSION.

John Kanagaraj
DB Soft Inc
Phone: 408-970-7002 (W)

Disappointment is inevitable, but Discouragement is optional!

• The opinions and facts contained in this message are entirely mine and do not reflect those of my employer or customers **

>-----Original Message-----
>From: Tanel Poder [mailto:tanel.poder.003_at_mail.ee]
>Sent: Tuesday, September 23, 2003 7:25 PM
>To: Multiple recipients of list ORACLE-L
>Subject: Re: CLOB
>
>
>Ah, I forgot one important issue about LOB performance -> if
>you select a
>varchar or long, the data in those is returned to client
>instantly, but if
>you select a LOB, then only a pointer (locator) is returned
>and it's up to
>client whether it sends a reading request to server to get
>actual contents
>of LOB. This means additional sqlnet roundtrips for each LOB item.
>
>Tanel.
>
>----- Original Message -----
>To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com>
>Sent: Wednesday, September 24, 2003 5:04 AM
>

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Author: John Kanagaraj
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