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Estimator tool that converts oracle data types to disk storage required [message #646922]

Thu, 14 January 2016 15:35

PBG789
Messages: 7
Registered: December 2015

Junior Member

Is there a tool/estimator that can be used to calculate row length of a table?

[Updated on: Thu, 14 January 2016 15:35]

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Re: Estimator tool that converts oracle data types to disk storage required [message #646924 is a reply to message #646922]

Thu, 14 January 2016 15:51

BlackSwan
Messages: 26766
Registered: January 2009
Location: SoCal

Senior Member

query user_tables

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Re: Estimator tool that converts oracle data types to disk storage required [message #646933 is a reply to message #646924]

Thu, 14 January 2016 22:51

PBG789
Messages: 7
Registered: December 2015

Junior Member

Thankyou BlackSwan.

I meant something like the nbd_size.pl utility in MySQL which helps to estimate storage requirements.

Looking for something similar in oracle which helps to calculate/estimate storage requirement for a table column structure/data types.

I was looking at the following link but could find anything similar for Oracle.

https://docs.oracle.com/cd/E17952_01/refman-5.5-en/storage-requirements.html

[Updated on: Thu, 14 January 2016 22:54]

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Re: Estimator tool that converts oracle data types to disk storage required [message #646935 is a reply to message #646933]

Thu, 14 January 2016 22:57

BlackSwan
Messages: 26766
Registered: January 2009
Location: SoCal

Senior Member

AVG_ROW_LEN * NUM_ROWS = approx table size
It is not rocket size; just simple multiplication.

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Re: Estimator tool that converts oracle data types to disk storage required [message #646938 is a reply to message #646933]

Fri, 15 January 2016 01:38

Michel Cadot
Messages: 68756
Registered: March 2007
Location: Saint-Maur, France, https...

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PBG789 wrote on Fri, 15 January 2016 05:51

I meant something like the nbd_size.pl utility in MySQL which helps to estimate storage requirements.

What does exactly do nbd_size.pl? Input? Output?

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Re: Estimator tool that converts oracle data types to disk storage required [message #646959 is a reply to message #646933]

Fri, 15 January 2016 06:40

EdStevens
Messages: 1376
Registered: September 2013

Senior Member

PBG789 wrote on Thu, 14 January 2016 22:51

Thankyou BlackSwan.

I meant something like the nbd_size.pl

If you have a solution for another rdbms, and and you have the source for that solution (as suggested by the .pl extension indicating it is written in Pearl) I'd think it not too difficult to modify that for Oracle.

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