I’m currently using Firebird 3.0.3, I have a table with a column that’s redundant i.e. that I can get from another table with a join so I removed all references to that column (indexes etc) and I’ve tried to drop the column. I use Database Workbench 5.4.2 Pro (but I’ve also tried to delete via Sql Alter table) and either way I get an error message “unsuccessful metadata update unknown ISC error 336397287 unknown ISC error 336068795 while executing: ALTER TABLE BOXCONTENTS  DROP TITLE”.

So what am I doing wrong and how can I remove this column?

Chris