Issuing commands from TSO terminals

You can connect and issue commands from TSO terminals by issuing a DSN command to invoke the DSN command processor explicitly, or through the DB2I (DB2® Interactive) ISPF panels.

To issue commands from a TSO terminal take one of the following actions:

• Issue a DSN command to start an explicit DSN session. The DSN command can be issued in the foreground or background, when running under the TSO terminal monitor program (TMP).
  Examples:

  Invoking a DSN session with five retries at 30-second intervals

  For example, the following TSO command invokes a DSN session, requesting five retries at 30-second intervals:

  DSN SYSTEM (DB2) RETRY (5)

  Displaying information about threads from a TSO session

  The TSO terminal displays:

  READY

  You enter:

  DSN SYSTEM (subsystem-name)

  The TSO terminal displays:

  DSN

  You enter:

  -DISPLAY THREAD

  DB2 returns the following messages:

  DSNV401I - DISPLAY THREAD REPORT FOLLOWS -
  DSNV402I - ACTIVE THREADS -
  ⋮

• Start a DB2I session to invoke and implicit DSN session. The following figure shows the options of the DB2I Primary Option Menu.

   DSNEPRI                     DB2I PRIMARY OPTION MENU          SSID: DSN
   COMMAND ===>
   
   Select one of the following DB2 functions and press ENTER.
   
    1  SPUFI                  (Process SQL statements)
    2  DCLGEN                 (Generate SQL and source language declarations)
    3  PROGRAM PREPARATION    (Prepare a DB2 application program to run)
    4  PRECOMPILE             (Invoke DB2 precompiler)
    5  BIND/REBIND/FREE       (BIND, REBIND, or FREE plans or packages)
    6  RUN                    (RUN an SQL program)
    7  DB2 COMMANDS           (Issue DB2 commands)
    8  UTILITIES              (Invoke DB2 utilities)
    D  DB2I DEFAULTS          (Set global parameters)
    X  EXIT                   (Leave  DB2I)

  When you complete operations by using the DB2I panels, DB2I invokes CLISTs, which start the DSN session and invoke appropriate subcommands.