Database Routines

Delete Chromosome data below Import Minimums

Deletes chromosome data below the Import Minimums set on the right hand side of the screen for cMs, SNP, and Base Pair values.

Backup First. Applies to the entire database. No preview given.

Be Patient. This can take a very long time, as it is dependant on the amount of data to be deleted.

When complete, the message will indicate how many segments were deleted.

Delete Chromosome data less than minimum cMs

Deletes chromosome data below the cM value set at the right hand side of the screen.

Backup First. Applies to the entire database. No Preview Given.

Be Patient. This can take a very long time, as it is dependant on the amount of data to be deleted.

When complete, the message will indicate how many segments were deleted.

Delete Chromosome data less than minimum SNPs

Deletes chromosome data below the SNP value set at the right hand side of the screen.

Backup First. Applies to the entire database. No preview given.

Be Patient. This can take a very long time, as it is dependant on the amount of data to be deleted.

When complete, the message will indicate how many segments were deleted.

Delete Chromosome Data less than minimum base pair length

Deletes chromosome data below the base pair length set at the right hand side of the screen.

Backup First. Applies to the entire database. No preview given.

Be Patient. This can take a very long time, as it is dependant on the amount of data to be deleted.

When complete, the message will indicate how many segments were deleted.

Remove all DNA Segment, Triangulation and ICW data

Removes ALL DNA segments, all Triangulation & all ICW data from the entire database, leaving you with just the relative records.

Backup First. Applies to the entire database. No preview given.

This may be helpful if you feel your segment, triangulation, and ICW data has become corrupted but are confident in your relative lists.

Delete Relatives without Chromosome Data

Deletes relatives who have no segment data associated with their record.

Skips any sources where "Segment Data" has been set to "False" (See Source Settings for more information)

Backup first. Applies to entire database. No Preview given. Progress displayed at bottom of window.

Delete all Relative and Chromosome data

Deletes all relatives and DNA segments.

Gives “Relative and DNA Segments data deleted” message when finished.

Delete Relatives NOT Associated with a Profile

Deletes relatives who are not associated with a profile.

It is recommended to run this routine if you have deleted a profile to help clean up your database.

When complete, the message given will indicate how many relatives were deleted.

Note: This routine can take an extended amount of time if you have a lot of relatives to delete. Be patient.

Recalculate the Total cMs and Segments by Profile

Recalculates the total cM and segment count for each relative in the database by profile.

Does not apply to sources without segment data.

Note: This routine can take an extended amount of time if you have a lot of relatives to process. Be patient.

Reset All Relative Keys as Primary

Resets all Relative Keys to a Primary setting, enabling all merged relatives to have data entered for all sources on import, even if the original merge was between two different people (such as parent and child merges).

Note: This routine can take an extended amount of time if you have a lot of relatives to process. Be patient.

This routine may also assist fixing source keys for those who have converted a database from GMP.

Assign Group Names to All Ahnentafels

Assigns group names to all loaded Ahnentafels.

Note: This routine can take an extended amount of time if you have a lot of data to process. Be patient.

A message is displayed at the conclusion of the routine to indicate completion.

Assign Group Names to Unlocked Ahnentafels

Assigns group names to unlocked Ahnentafels.

Note: This routine can take an extended amount of time if you have a lot of data to process. Be patient.

Cleanup Ahnentafel Location Names

Attempts to standardise location names to a standard format based on USA location logic.
Does not add any commas, correct any spellings, and does not assume a country location if only part of a location is present. 

Back up first. Use with Caution. Applies to whole database. No Preview Given.

Can be run on an Ahnentafel by Ahnentafel basis from right click menu of the Ahnentafel (F2) view of a match.

Remove Ahnentafels without Parents

Removes all Ahnentafels where only the match is present.

Note: This routine can take an extended amount of time if you have a lot of data to process. Be patient.

Displays a message when complete indicating how many Ahnentafels were removed.

Lock All Currently Loaded Ahnentafels

Locks all currently loaded Ahnentafels preventing them from being overwritten by future imports.

An Ahnentafel that contains just one person will be locked with this process, but any relative without an Ahnentafel is ignored in this process.

Note: This routine can take an extended amount of time if you have a lot of data to process. Be patient.

A completed message is displayed at the end of the process.

Unlock All Currently Loaded Ahnentafels

Unlocks all currently loaded Ahnentafels, allowing them to be overwritten in future imports.

Note: This routine can take an extended amount of time if you have a lot of data to process. Be patient.

Message is given at the end to indicate it is finished.

Miscellaneous Routines

Force a Database Defrag

Tidy's up the database data behind the scenes to maintain integrity where possible.

This also occurs by default after some database routines.

Display GDAT Database Stats

Displays the count of Relatives, DNA Segments, Triangulations, and ICWs currently loaded into the current database.

Note: Can not be directly compared with GMP database statistics due to the differences in the database structures.

ICW Conversion

This one time routine restructures the database to be compatible with GDAT Release 2025r05.  Backup database before running.