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Calculate disk space needed for INDEX

guruparanApr 8 2010 — edited Apr 8 2010
Hi,

How to calculate disk space needed for creating an INDEX? Please point me to resources where I can get detail.

For Example:
I need to create an non UNIQUE INDEX on the following columns, a rough size would do.

<PRE>
EVENT_DATE NOT NULL DATE
APPT_DATE_SLOT VARCHAR2(15)
EVENT_STATUS VARCHAR2(4)
</PRE>

The table has some 7,300,000 rows. Let me know how to calculate too.

All helps are greatly appreciated.
This post has been answered by Mark D Powell on Apr 8 2010
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Locked on May 6 2010
Added on Apr 8 2010
#general-database-discussions, #index, #oracle
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