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SQLite3 - Compare 2...
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SQLite3 - Compare 2 tables, list missing columns/fields  


Noble Member Admin
Joined: 7 years ago
Posts: 1309
December 24, 2019 2:54 AM  

I had to do some comparing of an old table and a new table, and see what columns (fields) are missing.

Since it took me quite a while to figure this one out, here my solution.

I have 2 tables: preferences and preferences_old ....
The old preferences table is missing some fields that do exist in the new preferences table.

This SQL query lists this missing columns (works only as of SQLite 3);

SELECT name FROM pragma_table_info("preferences") 
WHERE NOT name IN (SELECT name FROM pragma_table_info("preferences_old"));