Managing databases – PB Docs 2017

Managing databases

PowerBuilder supports many database management systems (DBMSs).
For the most part, you work the same way in PowerBuilder for each DBMS,
but because each DBMS provides some unique features (which PowerBuilder
makes use of), there are some issues that are specific to a particular
DBMS. For complete information about using your DBMS, see Connecting to Your Database.

What you can do

Using the Database painter, you can do the following in any DBMS
to which you have been given access by the database
administrator:

  • Modify local table and column properties

  • Retrieve, change, and insert data

  • Create new local tables or modify existing tables

Setting the database
connection

When you open a painter that communicates with the database (such
as the Database painter or DataWindow painter), PowerBuilder connects
you to the database you used last if you are not already connected. If
the connection to the default database fails, the painter still
opens.

If you do not want to connect to the database you used last, you
can deselect the Connect to Default Profile option in the Database
Preferences dialog box.

Changing the database
connection

You can change to a different database at any time. You can have
several database connections open at a time, although only one
connection can be active. The database components for each open
connection are listed in the Objects view.

The Database painter title bar displays the number of open
connections and which is active. The title bar for each view displays
the connection with which it is currently associated. You can change the
connection associated with a view by dragging the profile name for a
different connection onto the view.

For more about changing the database you are connected to, see
Working with Database Connections in Connecting to Your Database.

Creating and deleting
databases

When you are connected to SQL Anywhere, you can create a new
database or delete an existing database using the Database
painter.

For all other DBMSs, creating and deleting a database is an
administrative task that you cannot do within PowerBuilder.


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