Question

I’m using an ADO.net provider of SQLite. I want to steer around some of the “features” of SQLite, like allowing a string in an integer field and allowing a string longer than n in a field of type varchar(n). What is the best way to achieve this kind of validation? Stored procedures? triggers? I’m looking for a generic solution that applies to any database not just my database schema.

Answer 1

You can add column constraints.

create table example
( 
  age integer not null check (typeof(age)='integer'),
  name text not null check (length(name) between 1 and 100),
  salary integer check (salary is null or typeof(salary)='integer')
)