Microsoft Access has a pretty handy boolean property that you
can set for any "text" column in your tables: True means that
empty strings ('') are allowed in the column, False means that
they are not. This is actually quite nice, because by using this
along with the Required (i.e., disallow NULLS) property, you can
ensure that your column has an actual, non-Null, non-Empty
String value without the need for any additional constraints.
SQL Server does not have this property, but we can easily
achieve the same effect by using a CHECK constraint: create
table foo column1 varchar(100) not null check (column1 <>...
Let's say you are struggling on a programming project. Your code
is growing exponentially and becoming more convoluted by the
day, and it is clearly out of control. You're getting run-time
errors, compile-time errors, wrong output, no output, endless
loops, your machine is overheating, and perhaps you are starting
to feel like you might be a little over your head. Maybe this is
the first time you are usi