Add test data

src/test/resources/db/data/README.txt

@@ -4,13 +4,21 @@ README
 Folder contains backup of data for Naming database that may be useful for development and maintenance.
 
 Content prepared by
-- using NamesIT test class
-- setting debug point in readSearchHistoryDeleted method
+- integration test class - method
+      NamesIT                  readSearchHistoryDeleted
+      StructuresSubsystemIT    readSearchStatusDeletedChildren
+- setting debug point in methods at first statement in try clause
 - debug
 - when test is halted, use database management tool to backup data
 
 Backup done with DBeaver tool
-    DBeaver 21.2.0
+    21.2.0    dump-discs_names_namesit.sql
+    23.3.1    dump-discs_names_subsystemit.sql
+
+Restore to be done with psql
+    make sure database container is up and running
+    e.g.
+        psql --host=localhost --port=5432 --dbname=discs_names --username=discs_names < ......../naming-backend/src/test/resources/db/data/dump-discs_names_subsystemit.sql
 
 DBeaver
   https://dbeaver.io/