Is it possible to cascade delete a column value?
133288
Using Foreign Key and References for ON DELETE CASCADE in mysql
133232
Deleted object would be re-saved by cascade (remove deleted object from associations)
140348
Refer to renamed columns in WHERE clause
112508
Delete column from SQLite table
110786
T-SQL: Selecting rows to delete via joins
140374
Add a column with a default value to an existing table in SQL Server
90174
Delete all but top n from database table in SQL
97500
Modifying a column in a table
27231
UPDATE statement to re-assign a column value according to a numeric formula
113788
How to manually or programmatically delete a field?
114718
Is there a DBMS that allows the "= NULL" syntax?
150613
How to delete column/field in PyQGIS?
78041
android update database column based on the current column value
95271
Is it possible to change the natural order of columns in Postgres?
157160
How do I cancel a Delete in SQL
145332
Does MySQL overwrite a column of same value on update?
78909
Trigger calls in cascade deleting