Top 60 Oracle Blogs

Recent comments


ADWC – System and session settings (DWCS lockdown profile)

The Autonomous Data Warehouse Cloud service is a PaaS managed service where we have a PDB and an ADMIN user which has most of the system privileges. For example, we have the privilege to change initialization parameters:
SQL> select * from dba_sys_privs where grantee=user and privilege like 'ALTER S%';
------- --------- ------------ ------ ---------

Still, not everything is allowed for several reasons: ensure that we cannot break the Oracle managed CDB and force us to use only the features allowed in the ‘autonomous’ service. This is limited with a lockdown profile:
SQL> show parameter pdb_lockdown
------------ ------ -----
pdb_lockdown string DWCS

ADWC – connect from your premises

In the previous post about the Autonomous Data Warehouse Service, I’ve run queries though the Machine Learning Notebooks. But you obviously want to connect to it from your premises, with SQL*Net.

CaptureADWCconnect001Of course the connection, going through the public internet, must be secured. If you already use a managed service like the Oracle Exadata Express Cloud Service, you already know how to do: download a .zip containing the connection string and the wallet and certificate for SQL*Net encryption.

ADWC – the hidden gem: Zepplin Notebook

In the previous blog posts I explained how to create, and stop/start the Autonomous Data Warehouse Cloud service. And I didn’t show yet how to connect to it. It is easy, from sqlplus or SQL Developer, or SQLcl.

But there’s something more exciting to run some SQL queries: the Oracle Machine Learning Notebooks based on Apache Zepplin. At first, I didn’t realize why the administration menu entry to create users in the ADWC service was named ‘Manage Oracle ML Users’, and didn’t realize that the ‘Autonomous Data Warehouse Cloud’ header was replaced by ‘Machine Learning’.

ADWC – a Docker container to start/stop Oracle Cloud services

In the previous post, I’ve explained how to start and stop the Autonomous Data Warehouse Cloud service from PSM (PaaS Service Manager). There’s a setup phase, and a run phase starting with service-start and ending with service-stop. And the setup is specific to an Oracle Cloud account, storing information in the local user home. You may want to run different setups, and even provide an easy way to start/stop an Oracle Cloud service without knowing the user, password and tenant name.

A Docker container is perfect to isolate this.

ADWC: start/stop with PSM Command Line Interface

In the previous post, I explained how to create an Autonomous Data Warehouse with PSM (PaaS Service Manager Command Line Interface). The most common operation you want to do with it is starting and stopping the service. This is the best way to save credits for hourly billed services. And PSM is the easiest: run from everywhere (it is Python 3) and no need to provide credentials each time. In the previous post, I explained how to setup PSM for the ADWC service.

Unfortunately, for starting and stopping the instance you may realize that:

ADWC: Creation of Autonomous Data Warehouse Cloud service

You want to try the Autonomous Data Warehouse Cloud Service? That’s easy. Here is a Step-by-Step.