The most frequent causes of death from Werner Syndrome are heart attacks and cancer. It is not uncommon for affected individuals to develop multiple, rare cancers during their lifetime. People with Werner syndrome usually live into their late 40's or early 50's.
1 Answer. I am not a business analyst (I'm a software developer) but wil hazard a semi-educated guess: A requirement is something that is desired and fills a business need while a constraint limits choices to fit within an existing space. For example, a requirement might be something like: As a user, I must be able to enter the lengths of two adjacent sides of a rectangle and then click a single button to obtain the perimeter of that rectangle..
Requirements for search condition. If a check constraint is specified as part of a column-definition, a column reference can only be made to the same column. Check constraints specified as part of a table definition can have column references identifying columns previously defined in the CREATE TABLE statement. The search condition must always return the same value if applied to the same values.