Create: Create and Delete Relations.

In tera-insights/gtBase: R Interface for the Grokit System

Description

Functions used to create and delete relations.

Usage

Create(name, ...)

Delete(name)

Arguments

...	Named arguments used to specify the schema of the relation being created. Each argument should be in the form of name = type, where name is a valid name for an attribute and type specifies a type.
relation	Usually, a name or character string specifying the relation to load. A character string (enclosed in explicit single or double quotes) is always taken as the relation name. If the value of relation is a length-one character vector the name of the relation is taken to be the value of the only element. Otherwise, relation must be a name or character string.

Details

These functions are used to create new relations. These functions only affect the relational schemas visible to the user; they have no actual effect on the hard disk storage. In order to actually write data to an existing relation, Store should be used. When Delete is called, that relation is no longer available to the user and the space is used on the hard disc is freed, but the stored data is not immediately overwritten.

Value

An invisible NULL value.

Author(s)

Jon Claus, <[e-mail]>, Tera Insights, LLC.

tera-insights/gtBase documentation built on May 31, 2019, 8:35 a.m.