Fix setting ScaleDefined in SqlType

[gliljas]

Fixes #3523

[hazzik]

I personally hate the concept of xxxDefined. This is old pre-nullable way of doing things and I think it should be done by Nullable<X> now instead:

private int? length;
public int Length => length.GetValueOrDefault();
public bool LengthDefined => length.HasValue;

[gliljas]

I personally hate the concept of xxxDefined. This is old pre-nullable way of doing things and I think it should be done by Nullable<X> now instead:

private int? length;
public int Length => length.GetValueOrDefault();
public bool LengthDefined => length.HasValue;

Done