Table of Contents
Advertisement
OMRON
Configuring Schemas
Schemas enable information about a Database to be obtained from a Provider. There are a large
number of Schema Types available. The most useful feature of schemas is the ability to obtain Table
and Query names from the Database, in fact schemas are used by the Development Environment to
populate the Combo boxes when working with 'live' connections.
The information to be returned from the Provider is determined by specifying a Schema Type and a
Criteria. The Criteria argument is an array of values that can be used to limit the results of a schema
query. Each Schema type has a different set of Criteria that it supports.
A Schema is configured by selecting the desired Connection and choosing the right menu option
'Add Schema...' to invoke the following dialog:
Name
A unique Schema name will be automatically provided. This can be modified to provide a more
meaningful name if required.
Point
The name of an array point which will hold the results of the schema request. The Browse button
may be used to select a current point, or add a new one.
Type
The Type list will be populated with a selection of available Schema Types.
Criteria
The Criteria list shows the available Criteria for the given Schema Type.
Release 2.0
CHAPTER 12 – Databases
Page 207
Advertisement
Table of Contents
