using AWR on Exadata

Oracle released a brand new Whitepaper for Exadata

How to use AWR Report on Exadata Machines

This Whitepaper gives details how the AWR reports can be used in conjunction with Exadata to monitor and analyze database performance issues

http://www.oracle.com/technetwork/database/availability/exadata-maa-best-practices-155385.html

 

 

 

How to allow private connectivity across organizations(GCP)?

It's interesting, when you would like to allow private connectivity across two VPC networks that they belong to the different project/organization on Google Cloud Platform (GCP).

As google document that we can use VPC Network Peering? VPC Network Peering is a decentralized or distributed approach to multi-project networking. Additional, it works with Compute Engine, Kubernetes Engine,and App Engine flexible environments.

I did a lab about Virtual Private Cloud (VPC) Network Peering. There shows to do VPC Network Peering (more...)

#Exasol Database whoami

This little script displays some useful meta-information:

SQL_EXA> create schema myschema;
EXA: create schema myschema;

Rows affected: 0

SQL_EXA> create or replace script whoami as
 output('Current User: '.. tostring(exa.meta.current_user))
 output('Current Schema: '.. tostring(exa.meta.current_schema))
 output('Session ID: '.. tostring(exa.meta.session_id))
 output('Database Version: '.. tostring(exa.meta.database_version))
 output('Number of Nodes: '.. tostring(exa.meta.node_count))
 /
EXA:create or replace script whoami as...

Rows affected: 0
SQL_EXA> col output for a40;
COLUMN   output ON
FORMAT    (more...)

Configuring Firewall Access for SQL Database on Azure

Its quite common that the first time you work with a feature in a cloud interface, it can appear so foreign until you’ve done it a few times.  If it’s a task that you may not do often or only once, it can be downright painful.  It doesn’t matter who the cloud provider is or the application, we all have felt the pain of this type of situation and why some of us (more...)

Aurora MySQL synch/mutex/innodb/aurora_lock_thread_slot_futex wait

Thanks to Jeremiah Wilton for the following info:

This wait event indicates that there is a thread which is waiting on an InnoDB record lock. Check your database for conflicting workloads. More information on InnoDB locking can be found here: https://dev.mysql.com/doc/refman/5.6/en/innodb-locking.html

 

In other words, record-level lock conflicts are happening. More than one connection is trying to update the last_login for a particular id in the_table at the same time. Those (more...)

POUG18

So that was POUG18 – the Polish Pint with Oracle User Group. This is the 3rd annual conference (and the 4th event) I have attended. IMG_4748A new location, many new speakers but the same vibe, energy and level of fun. Taking place in Sopot on the Baltic Sea, it was simply excellent and has to be the most fun Oracle conference in Europe. Its just a good size. Not too big, not too small.

We (more...)

DDL Extract for tables

DDL Extract for tables

 

ALL Tables from user

set heading off;
set echo off;
Set pages 999;
set long 90000;

spool export_tables_ddl.sql

select dbms_metadata.get_ddl(‘TABLE’,table_name,’TESTUSER’) from user_tables;

 

spool off

 

*table_name — Don’t mention anything

 

 

A table

select dbms_metadata.get_ddl(‘TABLE’,’EMPLOYEE’) from dual

 

*EMPLOYEE – table name

The Future of Single-Discipline User Group Conferences

It’s just my opinion, but I think the days of the single discipline user group conference are numbered…

The big company flagship conferences will still happen, as they are more about hype and marketing, but I’m not sure what the future holds for regular user groups that want to stay with a single focus.

I don’t know many people who work on a single technology anymore. I certainly don’t know many people who would be (more...)

Why Automation Sucks

I’ve written a number of posts about how important automation is (here), but thought I would mention something that happened on Friday…

If you’ve followed the blog you will know I recently released a hands-off installation of 18 RAC. On Friday I received a pull request from GitHub suggesting a change to the GI software installation, switching the public and private network device names from “enp0s8” & “enp0s9” to “eth1” & “eth2”. I (more...)

Partial indexing – get the dictionary definitions right

Just a quick post to clear up some confusion that can be seen on the partial indexing capabilities in Oracle Database 12c and above. I was at an event in the Oracle Perth office last week, and an attendee mentioned that they thought the feature was not working or was not enabled on their database, and presented the following demonstration to prove their case:



SQL> create table t ( x int, y int )
  2   (more...)

Oracle Cloud: start/stop automatically the Autonomous Databases

In the previous post I've setup all the environment to be able to easily control the OCI services without bothering with the sign-in headers, and without installing anything. In this post I'll used the oci-curl() function to stop all my Autonomous Database services. In the previous post, I've set the environment variables for the private and public key, and the user, tenant and compartment OCIDs.

Oracle Cloud Infrastructure API Keys and OCID

As you may have read in the news, CERN is testing some Oracle Cloud services. When a large organisation is using the Cloud Credits, there's a need to control the service resources. This requires automation and then the GUI interface from the Cloud portal is not sufficient. We can control the Oracle Cloud Infrastructure through the REST API, OCI CLI, OCI SDKs, and all those methods require a RSA key for sign-in and some OCI (more...)

Integrated SOA gateway page loading long time no response

When you try to open ‘Integrated SOA gateway page in EBS and loading  long time with no response”

 

Solution :

Run Gather schema statistics

exec fnd_stats.gather_schema_statistics(‘ALL’);

 

 

Updating Exadata Software summary

Updating an Exadata software is one of the crucial tasks for any Database Machine Administrator (DMA). Though not necessarily one has to patch the environments whenever there is a new patch released by Oracle, but, it is highly recommended to patch the systems at least twice a year to fix any known &unknown bugs, security vulnerabilities and other issues.

This blog post summarizes the overall overview of software updates on an Exadata Database Machine. The (more...)

Exadata and Capacity on Demand (CoD)

As most of us knew that the Exadata Database Machine comes in different sizes with different resource capacity. Not sure how many of you aware that Capacity on Demand (CoD) option can enable customers to start with limited active cores processors and increase them dynamically on demand. If CoD option is not enabled during the initial EDM configuration, then, all active cores are enabled by default and can't be reduced any further.

With X4-2 or (more...)

Living the Dream

I was watching a rerun of X Factor at my brother’s house at the weekend. Most of the time I was wincing at all the bum notes sung by the people the judges were saying were fantastic, or wincing at everyone who was doing it for their { mom | dad | grandma | grandad | dead parrot } in an attempt to get me emotionally invested. Apart from all that cringe, the other thing (more...)

Connor and Chris at OpenWorld

Chris and I will be at OpenWorld next month, so our session details are below, but you can also click on the links below to add entries to your calendar to make sure you don’t miss us. Don’t forget to use the official Schedule Builder to make sure you have booked your spot at our sessions!

If you can’t get to our sessions, you might catch us wandering the halls or at The Hub. Feel (more...)

Create Oracle Database 18c on Windows – Advanced Configuration for the pros

If you are setting up a production system or similar, you will need to go through the advanced configuration. The best option is to choose "Set Up Software Only" in Oracle Universal Installer (OUI) to complete the Oracle software installation, then use Database Configuration Assistant (DBCA) to create a new database. OUI and DBCA have the advanced configuration. The OUI advanced configuration is not "advanced" enough, DBCA lets you customize the database configuration options - (more...)

Cloud Access Security Broker (CASB) for Oracle Cloud Infrastructure (OCI)

Customer adoption to cloud services (IaaS, PaaS, SaaS)  has been rapidly grown and growing. The most challenging aspect moving to cloud is the ability to secure the application and data that is put on the cloud. Oracle's hetrogenous security solution Cloud Access Security Broker (CASB) helps customers protecting their cloud-based infrastructure, platforms, applications across vendors. CASBs have emerged as  the go-to cloud security solution. CASB has the ability to provide security to entire cloud footprint (more...)

ORAchk (EXAchk) und der Collection Manager (Teil 2)

Nun geht es mit Teil 2 weiter.

Nach dem nun die APEX Installation fertig ist, geht es darum den Collection Manager zu installieren und zu konfigurieren.

Dazu empfehle ich sich für das Setup parallel die Dokumentation, also das User’s Guide „Oracle® ORAchk and EXAchk“ und hier Kapitel 1.9 Oracle Health Check Collections Manager for Oracle“ zu öffnen.

Wir melden uns nun am Admin Service an:

 

http://o1:8080/apex/apex_admin

Der neue „Workspace“ wird erstellt. Im zweiten Schritt (more...)