TEAM-ADA Archives

Team Ada: Ada Programming Language Advocacy

TEAM-ADA@LISTSERV.ACM.ORG

Options: Use Forum View

Use Monospaced Font
Show Text Part by Default
Condense Mail Headers

Message: [<< First] [< Prev] [Next >] [Last >>]
Topic: [<< First] [< Prev] [Next >] [Last >>]
Author: [<< First] [< Prev] [Next >] [Last >>]

Print Reply
Mime-Version:
1.0
Sender:
"Team Ada: Ada Advocacy Issues (83 & 95)" <[log in to unmask]>
Subject:
From:
Gilbert Prine <[log in to unmask]>
Date:
Sun, 11 Oct 1998 19:03:24 -0400
Content-Type:
text/plain; charset="us-ascii"
Reply-To:
Gilbert Prine <[log in to unmask]>
Parts/Attachments:
text/plain (11 lines)
>>it can be an effective custom database engine for any table with less than 4
>>billion rows.

>What is the source of the magic number 4 Billion ?

The maximum value of Count and Positive_Count in direct_io are
implementation defined.  On two compilers that I have worked with they were
equivalent to long_integer which was defined as 32 bit.  If an
implementation defined them and long_integer as 64 bit, then I guess then 4
billion ** 2 rows would be easy to work with.

ATOM RSS1 RSS2