Subject Re: [firebird-support] How To Change Column DataType From Varchar To Integer ?
Author Tim Ward
On 22/04/2015 09:26, Mark Rotteveel mark@... [firebird-support] wrote:

Create a new column, assign/convert the values from the old column, drop
the old column, rename the new column (optional).

... and sort out, manually, however many hundreds of dependencies you have (triggers, foreign keys, procedures, ...).

Tim Ward