DB2 10.1 Client throws SQL0552N running a script
You will need to grant Client101 CONNECT and CREATETAB on database in order to be able to create a table. It may also help to grant IMPLICIT_SCHEMA as well. And depending on the version of your client, you may either need to connect with an admin ID first, or grant BINDADD to your ID so it can bind version specific system packages.

db2 connect to mydb as admin101 using "password"
db2 grant connect,createtab,implicit_schema,bindadd on database to user client101
db2 connect reset


then

db2 connect to mydb as client101 using "other_password"
db2 create table .....