My Summer of SQL

I know that right sidebar on my blog has an AWFUL lot of Microsoft events on it.  There’s so many, I’ve begun to use the hashtag #MySummerOfSQL due to it.  For those of you that follow me with Oracle, it doesn’t mean that I’m leaving the Oracle community- not even close.  I’m as dedicated as ever to Oracle and hope to dig back into my performance roots on (more...)

Introduction to Oracle Big Data Cloud Service – Compute Edition (Part V) – Pig

This is my last blog post of my introduction series for Oracle Big Data Cloud Service – Compute Edition. In this blog post, I’ll mention “Apache Pig”. It’s a tool/platform created by “Yahoo!” to analyze large data sets without the complexities of writing a traditional MapReduce program. It’s designed to process any kind of data (structured or unstructured) so it’s a great tool for ETL jobs. Pig comes installed and ready to use with (more...)

Cloning an Oracle Home

You may wish to clone an Oracle Home, for example you have all your databases on a single Oracle Home but you want to separate Development from Test.  This could be so you can soak test Patch Set Updates (PSU) on Development before applying to Test and then Production.  Or you might wish to have 2 Oracle Homes, so you can patch one and then switch all databases to the patched Oracle Home for minimal (more...)

2 Minute Tech Tip

We have released a 2 minute tech tip through the Oracle Technology Network (OTN) which talks through the creation of a simple end to end integration using Oracle’s Integration Cloud Service (ICS).  

The post 2 Minute Tech Tip appeared first on Implementing Oracle Integration Cloud Service.

EM13cR2 Installation Failing on BI Publisher Configuration

This is going to be a short post as there wasn’t much information on this type of failure when searching for it. Also, the IP’s are changed due to security reasons

I was working on an Oracle EM13cR2 installation and when the installation reached 78%, it failed on the BI Publisher configuration. First, I looked at the CfmLogger log.

INFO: oracle.sysman.top.oms:WLST offline debugging is in the file: /u01/app/oracle/middleware/cfgtoollogs/bip/bipca_20170613152059.log.wlst_20170613152122.trc
INFO:  (more...)

Assess Performance using Calibrate on Exadata

For those who are fortunate to have an Oracle Exadata Database Machine, may wonder if their Exadata meets the IOPS/MBPS as per the technical specifications.  Well with the command CALIBRATE in CellCLI, you can run raw performance tests on the cell’s hard disks and flash drives, enabling you to verify the disk/drive performance:

[root@v1ex1celadm01 ~]# cellcli
CellCLI: Release 12.1.2.3.4 - Production on Tue Jun 13 19:02:05 IST 2017

Copyright  (more...)

Annual Oracle release cycle coming?

Those of you on Twitter at the end of May, and certainly those at DOAG might have seen this announcement.

I'm no DBA, but that first sentence in the picture has the potential to be rather game changing.
Annual Feature Release of (more...)

clckwrk Design Blueprint: Oracle e-Business Suite on AWS

Moving to the Cloud Made Simple: A Framework for Oracle e-Business Suite in AWS 

We wouldn’t blame you if you’re not 100% ready to jump into the Cloud, just because that’s what everyone else seems to be doing. Making the right decision for your business means taking a careful look at what exactly the benefits are going to be. How will your systems work in the Cloud? Can Cloud providers like AWS actually meet your (more...)

Using DataGuard broker to show apply lag and throughput

To determine how much lag there is I normally run a script similar to this

select sequence#, applied, to_date(to_char(first_time,’DD-MON-YY:HH24:MI:SS’),
‘DD-MON-YY:HH24:MI:SS’) “First Time” ,
to_char(next_time,’DD-MON-YY:HH24:MI:SS’) “Next Time”
from v$archived_log
UNION
select NULL,database_role,NULL, db_unique_name from v$database
order by “First Time”;

However there is another way which I sometime use which actually gives a lot more information. This uses the dataguard broker command line. Use the show configuration parameter to determine database name if you are not sure

 (more...)

Optimizer- Oracle and SQL Server, Hints

So you’re going to see a lot of posts from me in the coming months surrounding topics shared by Oracle and SQL Server.  These posts offer me the opportunity to re-engage with my Oracle roots and will focus on enhancing my SQL Server knowledge for the 2014 and 2016, (2017 soon enough, too) features, which I’m behind in.

I’m going to jump right in with both feet with (more...)

OGh Tech Experience 2017 – recap

On June 15th and 16th 2017 the very first OGh Tech Experience was held. This 2-day conference was a new combination of the DBA Days and Fusion Middleware Tech Experience that were held in previous years. To summarize: OGh hit bullseye. It was two days packed with excellent in-depth technical sessions, good customer experiences and great networking opportunities.

The venue was well chosen. De Rijtuigenloods in Amersfoort is a former maintenance building of the Dutch (more...)

Oracle SQL Strip Quotes

Somebody wanted to know how to strip double quotes from strings. Obviously, they’re playing with the DBMS_METADATA package. It’s quite simple, the TRIM function does it, like this:

SELECT TRIM(BOTH '"' FROM '"Hello World!"') AS "Message"
FROM   dual;

It will print:

Hello World!

As always, I hope this helps those looking for a solution.

OGh Tech Experience 2017 : The Journey Home

I woke up really early so I decided to head straight for the airport. It was a 20 minute bus ride to the station, then a train to the airport, or so I thought. It turned out there wasn’t a straight through train, so I had to go via Utrecht. Once at Utrecht I got on a train the the airport, but it stopped early due to work on the lines, so I had to (more...)

OGh Tech Experience 2017 : Day 2

I woke up on day 2 feeling pretty dreadful, but I lay in the bath for a while, waiting for a dose of Lemsip to kick in. By the time I got out of the bath I was feeling OK-ish.

By the time I finished the 20 minute bus ride and the short walk to the venue I wasn’t feeling so great, but the adrenalin started to kick in, which always helps. I sat for (more...)

12c DataGuard Validate and More

12c Dataguard Switchover Best Practices using DGMGRL(Dataguard Broker Command Prompt) (Doc ID 1582837.1)	

Configuration
db_name=hawk
db_unique_name=hawka (primary)
db_unique_name=hawkb (standby)

Configuration - hawkdg
  Protection Mode: MaxPerformance
  Members:
    hawka - Primary database
      hawkb - Physical standby database 

Validate DataGuard Configurations.

Monitorable (Read-Only) Properties

show configuration verbose

show database verbose hawka
show database verbose hawkb

validate database verbose hawka
validate database verbose hawkb

There is no need to use on database if the instance names are unique (more...)

JDBC, Linux and Entropy

Some troubles — especially those happening only sporadically — are not so easy to shoot and call for a deeper understanding of the matter. In the following real-world example this means: SQL*Net Tracing and some knowledge about the inner workings of the server’s operating system, particularly random number generation. This case was suited well to demonstrate an approach to trouble-shoot […]

Log Buffer #514: A Carnival of the Vanities for DBAs

This Log Buffer Edition encompasses few of the nifty blog posts from Oracle, SQL Server and MySQL.

Oracle:

Introduction to Oracle Big Data Cloud Service

Interpreting wpad.dat using jrunscript from JDK 8 to work out the right proxy.

Nice Trick to Get ADF LOV Description Text

Presentation: Dynamic Actions, Javascript, & CSS for APEX Beginners

E4 Session Developing Agnostic Data Services

SQL Server:

Setting up R in SQL 2016 – Avoiding Pitfalls

Setting (more...)

Introduction to Oracle Big Data Cloud Service (Part IV) – Zeppelin

This is my forth blog post about Oracle Big Data Cloud Service. In my previous blog posts, I showed how we can create a big data cloud service on Oracle Cloud, which services are installed by default, ambari management service and now it’s time to write about how we can work with data using Apache Zeppelin. Apache Zeppelin is a web-based notebook that enables interactive data analytics. Zeppelin is not the only way to work (more...)

OGh Tech Experience 2017 : Day 1 – Rumours of my demise

For those that missed me, I did actually turn up to the event today. I arrived at about 11:00, got my badge, sat down in the speaker room for a bout 2 minutes, then left and came back to the hotel.

I was ill most of last week and I thought I was a lot better, but the flight yesterday and the heat since I’ve been here have really put me back. My sinuses feel (more...)

Introduction to Oracle Big Data Cloud Service (Part III) – Ambari

This is the third blog post about Oracle Big Data Cloud Service. I continue to guide you about the Big Data Cloud Service and its components. In this blog post, I will introduce Ambari – the management service of our hadoop cluster.

The Apache Ambari simplifies provisioning, managing, and monitoring Apache Hadoop clusters. It’s the default management tool of Hortonworks Data Platform but it can be used independently from Hortonworks. After you create your big (more...)