Formal: State your points confidently and offer your argument firm support. These are just some of the differences between formal and informal writing. The main thing to remember is that both are correct, it is just a matter of tone and setting. Formal English is used mainly in academic writing and business communications, whereas Informal English is casual and is appropriate when communicating with friends and other close ones. Choose the style of writing keeping in mind what you are writing and to whom.
Definition of integrity. 1  1 : firm adherence to a code of especially moral or artistic values : incorruptibility. 2  2 : an unimpaired condition : soundness. 3  3 : the quality or state of being complete or undivided : completeness.
Referential integrity is a property of data which, when satisfied, requires every value of one attribute (column) of a relation (table) to exist as a value of another attribute in a different (or the same) relation (table).