Though goals generally control objectives, objectives can also control goals as they unfold. For example, since a goal is general in nature, it may be refined and altered as objectives are completed. The completion of an objective or a series of them, could cause you to either raise or lower the ultimate goal.
For other uses, see Sequence (disambiguation). In mathematics, a sequence is an enumerated collection of objects in which repetitions are allowed. Like a set, it contains members (also called elements, or terms). The number of elements (possibly infinite) is called the length of the sequence.
SEQUENCE is one of the new feature introduced in Sql Server 2012. Sequence is a user-defined object and as name suggests it generates sequence of numeric values according to the properties with which it is created. It is similar to Identity column, but there are many difference between them.