CauseVox. CauseVox is a crowdfunding site for both nonprofit organizations and for-profit causes. It provides you with a nice set of tools and templates to design your campaign, rally your supports on your website or through social media, track your progress, and utilize your data.
Function composition. In mathematics, function composition is the pointwise application of one function to the result of another to produce a third function. For instance, the functions f : X â Y and g : Y â Z can be composed to yield a function which maps x in X to g(f(x)) in Z.
A sequence object is usually used to generate unique identifiers for rows of a table. The sequence functions, listed in Table 9-34, provide simple, multiuser-safe methods for obtaining successive sequence values from sequence objects. Table 9-34. Sequence Functions. The sequence to be operated on by a sequence-function call is specified by a regclass argument, which is just the OID of the sequence in the pg_class system catalog. You do not have to look up the OID by hand, however, since the regclass data type's input converter will do the work for you.