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Working with databases
Locating and moving
database files
Database file
compatibility
Using Sybase Central
to create an IQ
database
Using Sybase Central
to create a multiplex
IQ database
Using the CREATE
DATABASE statement
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When you create a database, you specify its location. Before you do so,
consider whether you will ever need to move the database.
In order to move a database, it is crucial that you have all of the files you need,
that they be in a consistent state when you move them, and that no users are
connected to the database. Because it is difficult to achieve these conditions,
you should avoid copying a database unless absolutely necessary. Instead, if
you must move a database, use the
and then use the
RESTORE
backup. See Chapter 11, "Backup and Data Recovery" for more information.
The database file and the transaction log file must be located on the
Warning!
same physical machine as the database server. Locating database files and
transaction log files on a network drive can lead to poor performance and data
corruption.
If your IQ requirements are large and complex enough that you need multiple
physical systems, consider using the Adaptive Server IQ Multiplex feature. See
the Adaptive Server IQ Multiplex User's Guide for details.
Adaptive Server IQ servers cannot manage databases created with versions
prior to Adaptive Server IQ 12.0; likewise, old servers cannot manage new
databases.
To create an IQ database in Sybase Central, click the Utilities folder in the left
panel, then double-click Create Database in the right panel to start the Create
Database Wizard. The Create Database Wizard leads you through the process.
If you need more information, see "Managing Databases with Sybase Central"
in the Introduction to Adaptive Server IQ, or see the Sybase Central online
help.
To create a multiplex IQ database in Sybase Central, you use the Create
Multiplex Wizard. Be sure that you have set up the multiplex environment
correctly before running Create Multiplex. See the Adaptive Server IQ
Multiplex User's Guide for instructions.
You can use the
CREATE DATABASE
must specify the filename for Catalog Store and the
parameters are optional. If you use all of the defaults, your database has these
characteristics:
command to make a full backup,
BACKUP
command with the
RENAME
statement to create IQ databases. You
IQ PATH
option to restore the
. All other
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