Part1 Configuration Evodesk

Installation was not bad.

Evodesk is the 2nd company I am aware of for using recesss nuts for desktop installation.

This makes much more sense than using wood screws.

However, pondering if Evodeskk will be the first company to used recess nuts for all components and get rid of wood screws.

Don’t you think the legs make  great towel rack?

install1

install2


Delphix announces masking acquisition

I’m excited to announce the first acquisition by Delphix (portending many to come). Dephix has just acquired the data masking company  Axis Technology Software. Delphix is integrating the Axis masking technology into the core Delphix product. Masking is a feature that 9 out of 10 customers have asked for after buying Delphix. Delphix eliminates the data cloning bottleneck  for application development environments and naturally the next concern that arises is how to mask the data from production (more...)

Writing tips and techniques

It’s been a while since I’ve posted anything on my blog, and this is a slightly different post to the rest, as it’s not technical in any way…  Instead it’s a quick post about a series of fantastic writing tips and techniques posted recently, from my good friend Tim Hall at ORACLE-BASE.  I’ve tweeted a few of these

Read More...

SQL performance, Part III. Data storage strategies

Imagine that you’re on a desert island where some pirates hid their treasure. You don’t know where exactly it is hidden, but you want to find it. How should you approach this – e.g. should you dig randomly? Or should you follow some sort of a system – and if yes, then which?

I think most readers have smelled a trap right away (it’s not a very sophisticated trap anyway) – of course it (more...)

Delphix Data as a Service (DaaS)

The capabilities of Delphix can be differentiated from snapshot technologies through the following hierarchy:


Screen Shot 2015-05-19 at 4.39.57 PM
  1. Data as as Service (DaaS) (Delphix approach to data management)
  2. Virtual Data (end-to-end collection and provisioning of thin clones)
  3. Thin Cloning
  4. Storage Snapshots
On top we have the most powerful and advanced data management features that enable fast, easy, secure, audit-able data flow through organizations.
Screen Shot 2014-05-21 at 8.08.47 AM
DaaS is built on top of other technologies. On the bottom we have the minimal building (more...)

First Impression for Evodesk Desktop Unboxing

Disclaimer: I am not being paid by anyone to write positive or negative review.

Opinions are my own based on my limited engineering background.

First, packaging is somewhat poor and could be much better for a desk costing close to $1,000 ($886 for my configuration).

Tape coming off.

badpackaging2

I hope my desktop is okay.

badpackaging1

Taking a look inside. Is that a tiny scratch I see?

badpackaging3

After opening the desktop, this is the torn location – (more...)

5 Minute JavaScript #17: some and every

In the previous blogpost we discussed the map method on arrays in JavaScript. We still have some useful methods the go. Next in line are the some and every methods. These methods are similar and can be very useful when validating data.

var isEven = function (n) { return n % 2 === 0 };
var areAllEven = [2, 4, 6].every(isEven);
var someEven = [1, 2, 3].some(isEven);

The every method will check if (more...)

SQL Performance, Part II — Disk I/O: metrics and scales

While query performance depends on a large number of things, overall scale of query performance for a given database is generally set by disk I/O speed. The most common type of a storage device used in databases is still a hard disk drive (HDD), so let’s consider how it works.

HDD uses magnetic state of a very small region on a disk to encode “0” or “1” (i.e. carry 1 bit of information). A (more...)

SQL Performance, Part I. Data access efficiency.

Database performance optimization deals with the problem of reducing time (and/or other resources) required to complete database queries by resolving various inefficiencies. There are many kinds of performance issues, and they can be categorized in many different ways. One important way is by scope: statement-level or instance-level. Instance-level performance tuning (which we are not covering in this mini-series) deals with such problems as excessive parsing, cache efficiency, concurrency etc. Statement-level performance tuning deals mostly with (more...)

Giving back

Occasionally, I receive requests to explain stuff I talk about in my blog posts on a level accessible to beginners. Unfortunately, it’s not always possible to do so. You start to explain one little thing, and then you realize that in order to understand that thing, one would to understand a dozen other little things, and before you know it, instead of writing a short blog post you find yourself writing something of the size of (more...)

5 Things I wish I knew about APEX when I just started (part 3)

Build Options

Imagine having to release an apex application, but you don’t want some parts released in to the production environment yet, because they are unfinished, or not tested. Or you want to disable a module in your application for some reason.

Apex provides a solution for this called build options.

You can find the build options under shared components > logic > build options

Let’s create 2 build options:

The first one will keep (more...)

In Search of Standing Desk

I came across Evodesk Standing Desk Review
http://www.workwhilewalking.com/evodesk-standing-desk-review

Could not resist the temptation but reach out to @TreadmillDesker
You bark loud but how is ThermoDesk ELITE better EVODESK other than motor? $477=1333-886 is a lot for a motor. Let’s see pic.

Here is the respond I got back.
Thanks for the question! lab test of the Evo’s base concluded: slower speed, louder motors, and instability at taller heights.

Notice the respond was very (more...)

Google Search Appliance GSA Version 7.4 Released

Wanted to drop a quick note here that Google released the latest version of the Google Search Appliance software last week. That brings the most current version up to 7.4.0.G.72 and officially end of life’s the 7.0 version of the appliance software.

New features from the support site posting:

  • Seamless Integration with Microsoft: we’re releasing our SharePoint and Active Directory 4.0 connectors out of beta. These connectors provide improved (more...)

Oaktable World Las Vegas April 15, 2015 at Collaborate

oaktableworld_lasvegas1

 

Wednesday April 15 at Collaborate 2015 Las Vegas room Mandalay K
For more information see Pythian’s Blog post.

Screen Shot 2015-04-08 at 10.03.53 AM

 

Screen Shot 2015-04-08 at 10.06.48 AM

 

 

What is Oaktable World ? Oaktable World is a day organized by members of the Oaktable network. The Oaktable network is a network of Oracle database tuning geeks. Among the members are Tanel Poder, Jonathan Lewis, Cary Millsap etc.  Oaktable network was created by Mogens Nørgaard back in 2001 or so and Mogens started (more...)

ADF 12.2.1 New Features

Oracle has just updated their ADF Statement of Direction, announcing that ADF 12.2.1 will be out in 2015. Here is what they are promising for this release:

The Next Version of Oracle ADF

Oracle is planning to deliver the next version of Oracle ADF – 12.2.1 – as part of the next release of Oracle Fusion Middleware 12.2.1 in 2015. Some of the focus areas for this version include:

Updating SQL Developer to use newer Java version

I was being teased by SQL Developer.

Everytime I started it came nagging about that it was being forced to live in an old Java version called jdk1.7.0_45 and that is was not feeling happy about it.
So, I should remedy this, I thought to myself.

First visit was, inspired by some search-work on the WWW, a file called product.conf. Which offered two possiblities:

java

SetJavaHome to some logical location
or
SetJavaHome to (more...)

Observer effect

In physics, one important limitation of any experiment is the fact that an act of observation inevitably interferes with the observed process (“observer effect”). Same thing is true about databases. It is a well known fact that, for example, turning on tracing can significantly slow down the process for which it’s enabled. But there exist even nastier forms of this effect: for example, when you try to trace a SQL statement using nested loop batching mechanism, (more...)

Enterprise Manager is not able to connect to the database instance

Solution :

check the sysman and dbsnmp account status, If expired, please activate
SQL> select username,account_status from dba_users where username =’SYSMAN';

USERNAME ACCOUNT_STATUS
—————————— ——————————–
SYSMAN EXPIRED

SQL> select username,account_status from dba_users where username =’DBSNMP';

USERNAME ACCOUNT_STATUS
—————————— ——————————–
DBSNMP OPEN

 

So sysman account has been expired.  Please activate with old password and also Please check if this account has been locked, please unlock this account.

 

SQL> alter user sysman identified by Admin123;

(more...)

Try Oracle 12c VM with Delphix download


9104210308_a63b5ae5c4_z
 photo by Jose Maria Cuellar (CC 2.0)

Thanks to Leighton Nelson who pointed out  that :

Oracle has a pre-installed Linux VM with 12c

Delphix as well has a pre-installed   trial version 

Download both of these and start them up in Virtualbox and you can start virtualizing your PDBs.
The Oracle pre-installed VM has a few eccentricities that have to be addressed before using it. There is no IP address and there (more...)

Oracle Database Transactions and Locking Revealed, by Tom Kyte and Darl Kuhn

I recently came across the book called “Oracle Database Transactions and Locking Revealed” by Tom Kyte and Darl Kuhn. Usually, any new book by Tom Kyte is a big deal and acquires a huge following very quickly. Strangely enough there was only a single review on the Amazon, before I added my own.

For the reasons unknown to me, this book is literally ignored. I haven’t seen posts on the oracle-l about it, on the (more...)