xkos | A SKOS extension for statistical classifications | Data Mining library
kandi X-RAY | xkos Summary
kandi X-RAY | xkos Summary
A SKOS extension for statistical classifications
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QUESTION
I would like to do analysis of what codes appear in multiple tables under certains conditions. However I don't think the database schema suits the task very well but maybe there's something I don't know about that can help me. Here's a simplified schema:
...ANSWER
Answered 2018-Jan-06 at 10:59How would I combine all 525 ko tables without writing out each table name?
Create a table with the same number of columns as the largest table (the table into which you merge) allowing nulls.
query the sqlite_master table using something like :-
SELECT * from sqlite_master WHERE name LIKE '%kos%' AND type = 'table'
Loop through the extracted table names building an
INSERT SELECT
for each table that will insert the rows from the tables into the table created in 1.- See 2. INSERT INTO table SELECT ...; especially in regard to handling missing columns.
All done, the table created in 1 will be populated accordingly.
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