Link to home
Start Free TrialLog in
Avatar of sam2929
sam2929

asked on

space needed to load tables

Hi,
i have two tables to be loaded from flat file and i am trying to figure how much space they might need to get loaded

First file has 615908 rows  other file has 1611660 rows
first file has 150 columns and other file has 25 columns

Thanks
Avatar of Sean Stuber
Sean Stuber

you need to know the size of the data itself.

Are those 150 blobs, each of which contains  blu-ray content?  or are they 150 char(1) fields?

Also need to take into account indexes which may fill the same or a different tablespace as the table.

Also need to consider if you have compression on the table, indexes, or tablespace and what kind of compression.
Then need to know the actual data to determine just how compressible it is.

Also need to know the pctfree defined for each.
Avatar of sam2929

ASKER

95% Columns are varchar2(5 byte)
it is staging table so no indexes are there
no compression o tables
pctfree is 10
ASKER CERTIFIED SOLUTION
Avatar of Sean Stuber
Sean Stuber

Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial