Category: Database

Design, definitions, structure, operations…

In Praise of SQLite

Just learned of some interesting things about SQLite in this article that popped up in my Google News feed: In Praise of SQLite by Nikos Vaggalis, dated 28 July 2022. The latest version of SQLite is 3.39.2. I don’t monitor releases so this story made me aware of some significant changes delivered in 3.39.0 and…

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RMTREE Properties Query for RM8

This is an ‘upgrade’ from RMGC_Properties – Query #database for pre-RM8 databases. It provides an expansion over the information provided on the RM8 Home – File Properties screen. With a SQLite manager that supports runtime variables, a summary report can be given (just those variables with no leading hyphen). It ATTACHes a reference empty, unused…

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Trying to find duplicate spouses

I am trying to find duplicate spousess. I created the following query: select fatherid, (select n1.surname || “, ” || n1.given from nametable n1 where fatherid = ownerid) as fathername, motherid, (select n2.surname || “, ” || n2.given from nametable n2 where motherid = ownerid) as mothername from familytable order by fatherid, motherid; 1. Should…

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Backup database open in both SQLite and RootsMagic #backup

Problem Neither the RootsMagic File>Backup nor File>Copy can proceed because the database file “is being used by another process” (RootsMagic’s own or your SQLite manager or other outboard SQLite connection). And if you’ve chosen Backup, RM gracelessly blocks you from further work with an always-on-top fake news message window “Creating backup file…” requiring closure of…

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DAT File Question #ancestrycom #treeshare #database

I found some discrepancies in RootsMagic and posted a question. This was in an answer: C:\Users\Tom\AppData\Roaming\RootsMagic\AMT (change the “Tom ” to your Windows username). In this folder is a .DAT file for each connected Ancestry Member Tree (AMT), named “AT-AncestryTreeID.DAT”, where AncestryTreeID is an integer. This file is a SQLite database containing tables named identically…

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