Process new paperwork so that you create a digital version right away â or, when starting with a digital version, print a paper copy if necessary â and then file the paper copy away and work from the digital copy to save yourself time and trouble. Print updated paper copies of files as you need them.
Referential integrity is a database constraint that ensures. that references between data are indeed valid and intact. Referential integrity is a fundamental principle of database. theory and arises from the notion that a database should not. only store data, but should actively seek to ensure its qual-. ity. Here are some additional definitions that we found on. the Web. â¢ âReferential integrity in a relational database is consis-. tency between coupled tables. Referential integrity is. usually enforced by the combination of a primary key. and a foreign key.
std::unique_ptr is a smart pointer that retains sole ownership of an object through a pointer and destroys that object when the unique_ptr goes out of scope. No two unique_ptr instances can manage the same object. The object is destroyed and its memory deallocated when either of the following happens: 1  the managing unique_ptr object is destroyed.  the managing unique_ptr object is assigned another pointer via operator= or reset().