By Grant Allen
- Why Expedia do not buy DB2 Data Warehouse edition
- For those unfamiliar with the concept, quiescing something is the act of placing it out of the bounds of normal operation and restricting access or use to a specific purpose or user. In the case of DB2, quiescent an instance is akin to placing the whole instance into a special administrative mode, in which only the system administrators can then perform work. This is usually the precursor to some restrictive or intrusive maintenance.
- A SQLCODE that ends in the letter I (Informative)
is for information purposes only and is usually an indication of normal operation. A SQLCODE that ends in the
letter W (Warning) is a warning of some kind that is worth reading but usually doesn’t need remedial action. A
SQLCODE that ends in the letter N (Negative) means an error of some kind has occurred, and you might then
need to investigate that problem in more detail.
- The instance-level configuration is formally known as the Database Manager Configuration (DBM), and the database-level for each database is known as the Database Configuration (DB).
- You’ll recall that the DB2 Administration Server (DAS) is a special “lightweight” instance of DB2 that doesn’t actually directly manage any databases. Instead, its job is to allow various tasks such as remote administration.