March 30, 2012

Some SCN Blogs are not navigating from this Blog

Hello Everyone,

It seems some of the blogs are not navigating from this Blog after New SCN is launched. In New SCN everyone has to manually publish their blogs to make them visible to all.

Once this is done by users, then you will not face this navigation issues.If you are facing any issue with Articles or Blogs please reply to this post.

I will try to re-post it. Thanks for your understanding.

Modeling documents on SAP HANA in new SCN

Hello Friends,

Those who got access to SAP HANA test servers and would like to some hands on in SAP HANA, you can refer my documents in SCN.

I have submitted 3 documents on SAP HANA modeling which gives you basic idea.


This document explain about the first steps we need to do when log in into SAP HANA system for the first time. Which includes.
i) Adding System.
ii) Check whether schema is created or not.
ii) Creating Package.
iv) What are all the prospective's in SAP HANA.


This document discuss about various options we have in SAP HANA to create tables. They are
i) Using SQL Editor.
ii) Using Graphical Modeler.
ii) Table Types.


The above document discuss about creation of Attribute View in SAP HANA.This includes the below steps.
i) Mention Technical Name.
ii) Select Type of attribute view
iii) Select tables for model
iv) Define Joining Condition
v) Types Hierarchies.
vi) Save and Activate
vii) Data Preview.

Coming days, I will try to update the documents for Analytic View and Calculation View.

March 29, 2012

All you need about SAP HANA

Hello Friends,

When you look at SAP World, now a days everyone is talking about SAP HANA(including SAP). In this post I am going to give you all the links where you can find all the information about SAP HANA.

If you are interested to have some hands on, you can apply for SAP HANA test server access through SDN (now it's SCN).

SAP HANA Developer Access Beta program - get the best out of your test-drive!

The blow will page will give you all the information you need about SAP HANA.

DEVELOPER CENTER FOR SAP HANA

Happy Learning ... :)

March 11, 2012

What is SAP HANA?

HANA is "High performance ANalytic Appliance" which is combination of hardware and software.
HANA is also a simple Database like traditional DB, but HANA sits on In-Memory.

Why we need data in memory..?

One major thing is for faster analysis and data compression with columan based storage..

Advantages when data sits in memory?

1) no need for aggregation.
2) read and write operations will be very fast.
3) performing analytics with huge data(say in billions) will be much faster.

When we say; in recent years cost of memory has been decreased drastically, my hard disk cost was creased even more. Say if I have 1TB data, cost included in buying 1TB RAM is far high than buying 1TB hard disk.

Why I need to buy 1TB RAM instead of 1TB hard disk?

Due to the Column based storage which is introduced in SAP HANA, we will get high data compression when we move data into memory. this compression may vary from 10x to 100x depends on the individual data. So you need to buy 1TB RAM for 1TB data.

What are all the component we have in SAP HANA 1.0?
It consists of the below components.
1) Administration Console : To monitor the servers in the HANA system and to perform admin activities.
2) Information Modeler: To design the models in HANA system.

I will keep on updating this post...