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Use Extended Attributes – PB Docs 126 – PowerBuilder Library

Use Extended Attributes – PB Docs 126

Use Extended Attributes database preference

Description

Controls access to the extended attribute system tables by
specifying whether you want PowerBuilder to create these tables. The
extended attribute system tables (also known as the extended catalog)
consist of five tables that contain default extended attribute information
for your database.

By default, the Use Extended Attributes check box is selected
in the Database Preferences dialog box. This setting creates the
extended attribute system tables the first time you connect to a
database using PowerBuilder.

Controls

  • All database interfaces

Context

In an application

You cannot set the Use Extended Attributes
database preference in code.

In the development environment

In the Database painter, select or clear the Use Extended
Attributes check box in the Database Preferences dialog box as follows:

  • Select the check
    box

    (Default) Creates the extended attribute system tables when
    connecting to the database for the first time.

  • Clear the check box

    Does not create the extended attribute
    system tables if they do not exist. Instead, the DataWindow painter use
    the appropriate default values for extended attributes (such as
    headers, labels, and text color). If the extended attribute system
    tables already exist, PowerBuilder does not use them when you create
    a new DataWindow object.

Default

The Use Extended Attributes check box in the Database Preferences
dialog box is selected by default.

Usage

If you clear the Use Extended Attributes check box in the
Database Preferences dialog box, PowerBuilder does not do any
of the following:

  • Create
    the extended attribute system tables

  • Insert, update, or delete rows in the extended attribute
    system tables

  • Select information (such as header names) from the
    extended attribute system tables

  • Execute statements that reference the extended attribute
    system tables

See Also


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