To get a list of tables for the current database in DB2 -->
Connect to the database:
db2 connect to DATABASENAME user USER using PASSWORD
Run this query:
db2 LIST TABLES
This is the equivalent of SHOW TABLES in MySQL.
You may need to execute 'set schema myschema' to the correct schema before you run the list tables command. By default upon login your schema is the same as your username - which often won't contain any tables. You can use 'values current schema' to check what schema you're currently set to.