SQLite 3.27

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create table document (id, type, title, path)
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INSERT INTO document VALUES (1, 'type1', 'title1', 'path1')
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create table DocumentUpdates (id_document, attribute_changed, lastvalue, newvalue, modification_date)
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CREATE TRIGGER document_handler AFTER UPDATE ON document
FOR EACH ROW
BEGIN
  INSERT INTO DocumentUpdates (id_document, attribute_changed, lastvalue, newvalue, modification_date)
  SELECT NEW.id, 'type', OLD.type, NEW.type, CURRENT_TIMESTAMP
  WHERE NEW.type IS NOT OLD.type;

  INSERT INTO DocumentUpdates (id_document, attribute_changed, lastvalue, newvalue, modification_date)
  SELECT NEW.id, 'title', OLD.title, NEW.title, CURRENT_TIMESTAMP
  WHERE NEW.title IS NOT OLD.title;
    
  INSERT INTO DocumentUpdates (id_document, attribute_changed, lastvalue, newvalue, modification_date)
  SELECT NEW.id, 'path', OLD.path, NEW.path, CURRENT_TIMESTAMP
  WHERE NEW.path IS NOT OLD.path;
END;
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UPDATE document SET type = 'other type'
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UPDATE document SET title = 'other title'
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UPDATE document SET path = 'other path'
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SELECT * FROM DocumentUpdates


id_document
attribute_changed
lastvalue
newvalue
modification_date


1
type
type1
other type
2025-03-09 07:33:15

1
title
title1
other title
2025-03-09 07:33:15

1
path
path1
other path
2025-03-09 07:33:15


UPDATE document SET type = 'another type', title = 'another title', path = 'other path';
✓
SELECT * FROM DocumentUpdates


id_document
attribute_changed
lastvalue
newvalue
modification_date


1
type
type1
other type
2025-03-09 07:33:15

1
title
title1
other title
2025-03-09 07:33:15

1
path
path1
other path
2025-03-09 07:33:15

1
type
other type
another type
2025-03-09 07:33:15

1
title
other title
another title
2025-03-09 07:33:15

id_document	attribute_changed	lastvalue	newvalue	modification_date
1	type	type1	other type	2025-03-09 07:33:15
1	title	title1	other title	2025-03-09 07:33:15
1	path	path1	other path	2025-03-09 07:33:15