What happens when you update a column which should not be updated? Are rows updated completely?
55151
Performance impact of updating target columns with same values ON CONFLICT
15054
Does PostgreSQL optimize adding columns with non-NULL DEFAULTs?
73122
ORA-01427: single-row subquery returns more than one row update...?? Help?
27231
UPDATE statement to re-assign a column value according to a numeric formula
128527
Newly added column's data not being saved to DB
156714
How do I handle nonexistent or missing data?
132217
Oracle: Updating a table column using ROWNUM in conjunction with ORDER BY clause
68352
Users cant see 'Modified By' or 'Created By' (columns blank)
148542
How does Drupal know when to run an update script?
8870
To update or to not update?
50612
SQL Server - how to determine if indexes aren't being used?
153525
When To Update Statistics?
78636
Column name or number of supplied values does not match table definition. What shoul I do?
20647
Why is SSMS inserting new rows at the top of a table not the bottom?
78777
Oracle: how to UPSERT (update or insert into a table?)
102883
how to show only changed rows
90704
How can I tell when a MySQL table was last updated?