QUERY can be run in either session mode (interactive) or job mode (batch). In session mode, QUERY issues command prompts, error messages, and other messages of general interest to you. The manner in which QUERY proceeds depends upon your responses to QUERY messages and prompts. In job mode, QUERY reads commands and other input from a job file and prints messages on the $STDLIST device.
Before accessing data in either session or job mode, you must define the QUERY environment. After you define the environment, you use QUERY to enter, replace, delete, retrieve, and report data in the data base(s).
You can save a frequently used command as a named procedure or a sequence of commands as an XEQ file. Procedures and XEQ files allow you to execute commands repeatedly without re-entering the commands. These features can be used in either session or job mode.
Note: In this manual, user input, including passwords, is underlined when necessary for clarity. In an actual session, the password will not be echoed back to the screen. Also in this manual, examples are shown in uppercase letters. When using QUERY, you may use either upper or lowercase letters. Passwords must be entered exactly as defined by the data base administrator.
