Compilation Catalog Program
7.5 Substitute catalog parts.
compilation may require addition and/or substitution some parts of data
from different source catalogs. CompiCat allows the user to upgrade
the catalog in work (called Initial) with data from a number of additional
source catalogs (called Catalog add-ins). The Substitute
tool may seem rather similar to Merge catalogs tool although the
rules for merging the data from different sources are quite different.
Contrary to Merge catalogs tool, the Catalog add-ins have
higher priority than Initial catalog - all the records of the initial
catalog that fall within any of the time spans of all add-ins will not
appear in the resulting output catalog being substituted with data from
add-ins. Specifically, Substitute starts with the uppermost add-in
from the list, determines its time span from the first to the last record,
and substitutes all the data from the initial catalog from this time span
with all data of the add-in (note that depending on the initial catalog
time coverage and the add-in time span, the add-in data would either prepend
or insert or replace or append records to the initial catalog). Turning to
the next add-in, if any, Substitute considers the result of the previous
step as the initial catalog and proceeds with the current add-in. Finally,
step by step Substitute comes to the last add-in and completes the
task. Note that the order in in Catalog add-ins list defines the
ascending add-in priority, according to which the records from the last add-in,
evidently, will all be present in the output catalog.
To open the window
for substitute catalogs parts (Substitute) click button
If Catalog add-ins list is empty or its content
would not be used, click Browse button, browse the directories on
your computer for the catalog add-ins to Initial catalog and
open one or several of them in any order. To add one by one more add-ins
to the existing Catalog add-ins list from any directory use Insert
button. Other buttons - Delete, Down, Up - permit
to manage the list.
Apply confirms the choice of the Initial catalog and
Catalog ins list and runs Substitute
procedure. To rerun the procedure anew
without saving the current results the user can change Catalog ins list and click the button Apply.
OK is used to accept all the results of the Tool.
Cancel is used to cancel all the actions performed by the Tool
earlier and closes its window.
By clicking the Default button
the user sets the default values of the Tool. By clicking the Reset button
the user can remove all the changes introduced after entering the Tool
window. (Note that Reset button during the first usage of the Tool
is equivalent to the default values.)