What is DB2 catalog command?

What is DB2 catalog command?

Db2 automatically catalogs databases when they are created. It catalogs an entry for the database in the local database directory and another entry in the system database directory.

How do I catalog a DB2 database in Linux?

To catalog a database on the client:

  1. Log on to the system with a valid Db2 user ID.
  2. Optional: Update the Your Value column in the Parameter values worksheet for cataloging a database.
  3. If you are using the Db2 database on a Linux® or UNIX platform, set up the instance environment.
  4. Start the Db2 command line processor.

Where is DB2 catalog information stored?

The system database directory resides in the SQLDBDIR subdirectory in the instance directory. This directory is used to catalog both local and remote databases. The directory contains the database name, alias, type, and node where the database resides.

What is node name in DB2?

A node directory is created and maintained on each database client. It contains an entry for each remote workstation having databases that the client can access. The DB2 client uses the communication end point information in the node directory whenever a database connection or instance attachment is requested.

How do I find my DB2 instance name in Linux?

View the value of the DB2INSTANCE system environment variable.

  1. On Windows operating systems, issue the following command: echo %DB2INSTANCE%
  2. On Linux and UNIX operating systems, issue the following command: echo $DB2INSTANCE.

What is Db2 directory?

The Db2 directory contains information that Db2 uses during normal operation. You can use SQL to retrieve data only from the directory tables that are listed in Db2 directory tables. You can submit queries against the Db2 catalog for Db2 directory objects.

How do I find my Db2 instance name in Linux?

What are catalog tables in Db2?

The catalog tables describe such things as table spaces, tables, columns, indexes, privileges, application plans, and packages. Authorized users can query the catalog; however, it is primarily intended for use by Db2 and is therefore subject to change. All catalog tables are qualified by SYSIBM.

How do I query a TIMESTAMP in DB2?

To get the current timestamp of the operating system on which the Db2 is running, you use the CURRENT_TIMESTAMP function:

  1. SELECT CURRENT_TIMESTAMP result FROM sysibm.sysdummy1;
  2. RESULT ————————- 2019-06-14 10:59:26.988.
  3. SELECT CURRENT TIMESTAMP result FROM sysibm.sysdummy1;

How do I find database server name in Db2?

Check the DB2 service name

  1. Open the services file located in the \system32\drivers\etc directory, and find the entries that have comments referring to the DB2 instance connection port.
  2. Locate the service name in the first column that corresponds to the lower port number.

How do I find my DB2 name?