connect reset vs disconnect vs terminate

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  • Laurence
    #1

    connect reset vs disconnect vs terminate

    Hi there,

    Does anyone know what's difference among "connect reset", "disconnect ",
    and "terminate" ?


    Thanks in advance,

    Tags: db2 terminate
    • Brian Tkatch
      #2
      Re: connect reset vs disconnect vs terminate

      Laurence wrote:
      Hi there,
      >
      Does anyone know what's difference among "connect reset", "disconnect ",
      and "terminate" ?
      >
      >
      Thanks in advance,
      IIRC, CONNECT RESET contains an implicit COMMIT and stops the
      connection to database. TERMINATE end the process the server held open
      to the client, and drops all resources. So, the best way to end a
      connection is first CONNECT RESET and then TERMINATE.

      I am not familiar with DISCONNECT, but i would assume it closes the
      connection with an implicit ROLLBACK.

      The command are explained in detail in the documentation. under
      COMMANDs.

      B.

        Comment

        • Gladiator
          #3
          Re: connect reset vs disconnect vs terminate


          Brian Tkatch wrote:
          Laurence wrote:
          Hi there,

          Does anyone know what's difference among "connect reset", "disconnect ",
          and "terminate" ?


          Thanks in advance,
          >
          IIRC, CONNECT RESET contains an implicit COMMIT and stops the
          connection to database. TERMINATE end the process the server held open
          to the client, and drops all resources. So, the best way to end a
          connection is first CONNECT RESET and then TERMINATE.
          >
          I am not familiar with DISCONNECT, but i would assume it closes the
          connection with an implicit ROLLBACK.
          >
          The command are explained in detail in the documentation. under
          COMMANDs.
          >
          B.


          I guess Disconnect we use it with embedded SQL in a program.
          DISCONNECT wont work in DB2CLP if we give directly,
          we have to use CONNECT RESET or TERMINATE for coming out of the
          connection...

          Regards
          Kamal....

            Comment

            • Knut Stolze
              #4
              Re: connect reset vs disconnect vs terminate

              Laurence wrote:
              Hi there,
              >
              Does anyone know what's difference among "connect reset", "disconnect ",
              and "terminate" ?
              There are quite a lot of subtly differences:

              CONNECT RESET and DISCONNECT are SQL statements, TERMINATE is a DB2 command.

              From the manuals:

              CONNECT RESET:
              ==============
              On type 1 connections, it disconnects and runs a COMMIT before.
              http://publib.boulder.ibm.com/infocenter/db2luw/v8/topic/com.ibm.db2.udb.doc/admin/r0000906.htm


              On type 2 connections, it connects to the default database. But there are a
              few more options to control what happens.
              http://publib.boulder.ibm.com/infocenter/db2luw/v8/topic/com.ibm.db2.udb.doc/admin/r0000908.htm


              DISCONNECT:
              ===========
              Can only be used from an application and not interactively. Also, there
              must not be an UOW running at the time of DISCONNECT.
              http://publib.boulder.ibm.com/infocenter/db2luw/v8/topic/com.ibm.db2.udb.doc/admin/r0000943.htm


              TERMINATE:
              ==========
              Explicitly terminates the command line processor's back-end process.
              http://publib.boulder.ibm.com/infocenter/db2luw/v8/topic/com.ibm.db2.udb.doc/core/r0001973.htm

              Through that, it also disconnects from the DB2 server.

              --
              Knut Stolze
              DB2 z/OS Utilities Development
              IBM Germany

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