I have the xbase type of databases down tight, having been using them
since I bought my copy of dBASE II from George Tate of Ashton-Tate at a
West Coast Computer Faire in 1981. I have been writing applications for
my alarm company, now through Foxpro 2.6 in DOS. I understand what an
index is. My concern in using Sqlite is since the index is embedded
into the database file with various tables, if I am running multiple
Sqlite database files, how do I use a common index for the different
database files. I won't provide technicians with accounts receivable
databases, etc.
My thinking is along the line of all mission critical clocks take their
accuracy from the US Naval Observatory in Fort Collins, CO, instead of
thousands of free running clocks, each with what it thinks is the
correct time.
John
On 08/03/2018 02:48 AM, Ling, Andy wrote:
another point that I did not make clear. The accounting programs are not
associated with the technical programs, different people, different security
access. The tech databases and programs are in portable computers that go out
in the field, but not the accounting, etc. There indexes would have to be
updated when the computers are back at the office.
I have a feeling that what the OP is calling an index isn’t really. I think
what he is talking about is the list of customer IDs.
So customer data can get updated “back at the office” and when the portable
computers get back they need to be updated
with the changes.
In sqlite terms, an index is a sorted list of the data in one or more columns
of a table to help speed up access to the data in that table.
Once defined, the index is automatically updated by sqlite as the data in the
table is changed.
Perhaps we could get some clarification from the OP about what is actually
wanted.
Regards
Andy Ling
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