RE: Tuning Matter ==> Parameter PCT_USED in a Table

Ok, I'll admit my ignorance. What the heck does "1 row" mean? It can't mean the row length, or you'll end up with a negative PCT_USED.

>>> steve.adams_at_ixora.com.au 03/22/01 09:35PM >>> Hi Bambang,

Analyze the table and you'll find the average row length in USER_TABLES.AVG_ROW_LEN. Subtract 90 bytes from the block size before expressing that as a percentage and round it up. Also, the formula should be PCT_USED = 100 - (PCT_FREE + 1 row). There are scripts on the Ixora web site that do this sort of stuff.

@   Regards,
@   Steve Adams
@   http://www.ixora.com.au/ 
@   http://www.christianity.net.au/ 

-----Original Message-----
Sent: Friday, 23 March 2001 11:46
To: Multiple recipients of list ORACLE-L

Dear Listers,

I've download a presentation talking about Calculating PCT_USED . the formula is quite simple :
PCT_USED + PCT_FREE < 100
PCT_USED = PCT_FREE + 1 row size

but I have no idea to calculate the size of 1 row in a table .

is there anyone who knows to calculate it ? or any alternative formula to calculate PCT_USED ?

Thanks a lot in advance : )

=bambang=

<> Bambang Setiawan <>

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