READ part 1:
This debate of SAP Vs Oracle or last 2 yrs buzz SAP HANA vs Oracle Exalytics
Every year in Enterprise Software space Competition of SAP Vs Oracle Hots up with new announcements and New technology comparisons of SAP new Tech Vs Oracle New Tech.
The Enterprise Software stack built up by No.1 and No.2 world’s top most valued companies in Enterprise Technology Space.
So SAP Vs Oracle comparison will never go out of picture only every year it will up the ante.
In Memory Technology: SAP Vs Oracle (New tech now 2 yrs old).
Now a day In-Memory Technology is the Hottest area especially in Business Intelligence (BI). But its not limited to BI it goes into ERP, Application development of any Kind.
The processing infrastructure in form of in Memory Systems is much faster than any other form. As Cost of RAM is coming down and capacity of server is expanding So most data to be processed can be pulled inside memory at once instead of using Locality of reference to pull and process from secondary memory.
Also Server can hold lot more data to processed in memory at once.
SAP HANA Vs Oracle Exadata
So SAP Came with SAP HANA and Oracle has its own in memory systems. At same time Oracle released high performance machine Exadata which brook many performance records. So There was running comparisons of SAP Vs Oracle in Enterprise Technology space.
innovation at SAP : ABAP, BSP and BAPI
SAP customized by using Advanced Business Application Programming (ABAP) Language.
Using which reports are customized, forms are modified, business processes are written to reflect business Logic. ILE, BAPI, IDOC can be used to interface with external software or integration or developing Adaptor. Custom Exits and User Exits are written to customize forms and reports.
For SAP datawarehouse technology SAP BIW or SAP BI datawarehouse is created using
Extraction Legacy System Migration Workbench (LSMW) or Cost and profitability Analysis (COPA) Extrations then transformation can be applied using ABAP user exits.
Problem with ABAP is compared to mordern langauges it has not evolved much over time.
Most of ABAP constructs are similar to COBOL constructs. There is Object oriented ABAP also like JSP or ASP it came up with BSP (Business Server Pages) to Expose ABAP code directly to Web like JSP does for Java or ASP does for Microsoft Technology.
SAP Netweaver Vs SAP ABAP BSP
SAP began adopting Java in 2003 and came up with Netweaver product which was J2EE server for ABAP code. Now you can code using either java or ABAP in netweaver. For Application requiring functionality to exposed to Web Java was natural choice.
But Oracle having acquired Java in year 2010 Since then there was continuous Effort on part of SAP to move away from its dependence of Java. So BSP came into picture as first step.
Benefits of In-memory in SAP HANA
next was paradigm shift using Columar database instead of Row oriented databases which consumed less storage (on account of reduction in repetitions of similar column values as well compression of data).
Also it integrates:
BI and datawarehousing system or OLAP with
Operational systems or OLTP Systems as one.
Even Analytic requiring lowest level of granularity can be queried on same server.
Effect of which was Whole data can be pulled and kept in In-memory system offering faster response time to multiple user connected at same time rather than
Regular database Query processing logic
parsing request , making parse tree,
comparing with already fetched query parse tree in cache
if not available
fetching data from secondary memory
when depending on the request into
Improvement in data processing in SAP HANA and column oriented database
Now since whole data can be kept in-memory So Every query can directly fetch data quicker.
Future Technology Like SAP HANA
Enhancement over this Technology are Probabilistic databases and Graph databases.
Graph databases are available commercially since long time.
Index free storage. Every element has direct pointer to adjacent element, hence no lookup needed.
Here is list:
Probabilistic databases : Are active area of research as discussed above as well.
Lets look at Snow news pattern over time.
You can clearly see around End of Each year snow news peak Which is right.. That’s how it should be as winter season comes around December everywhere..
But abnormal pattern is the number of peaks news making Each year.
As Every time it snows at any part of world people searches increase giving consolidated data pattern. One more worry look is the Elongation of top curve and variation there it getting more varried Every year since 2004.
A data warehouse Architect generally help to design datawarehouse , requirement gathering in ETL Low level design LLD, and HLD high level design, setting up database infrastructure design for datawarehouse like Storage Area Network requirements, Rapid application Clusters for database of datawarehouse more details read
Datawarehousing consists of three main area :
1. ETL(data migration, data cleansing, data scrubbing, data loading )
2. Datawarehouse design
3. Business Intelligence (BI) Reporting infrastructure.
Read These Two part article for BI
Design : Now Coming to part 2 (is generally work of Data warehouse architect)
Read Some details More would be covered in future articles
9:00-9:30 Read and reply mails.
9:30-10:30 Scrum Meeting
10:30-11:30 update documents According to Scrum meeting like burn down chart etc..update all stake holders.
11:30-12:00 Meeting with Client to understand new requirements. create/update design specification from requirement gathered.
12:00-13:30 create HLD/LLD from the required user stories according to customer Landscape of technology used.
13:30-14:00 Lunch Break.
14:00-14:30 Update the Estimations ,coding standards , best practises for project.
14:30-15-30 Code walk through update team on coding standards.
15-30-16:30–Defect call with Testing and development Team to understand defects, reasons of defects, scope creep, defect issuse with defect manager, look at issue/defect register
16:30-17:30 Work on specification of Design of datawarehouse modelling Star or Snow flake schema design according to business requirements granularity requirements.
17:30-18:30 Look at Technical Challenges requiring Out of Box thinking, thought leadership issue, Proof of concept of leading Edge and Breeding Edge technologies fitment from project prospective.
18:30-19:30 onwards Code for POC and Look a ways of tweaking , achieving technology POC code.
19:30- 20:30 onwards Forward thinking issue might be faced ahead by using a particular technology is continuous never ending process as there can be multiple combination possible to achieve as well as using particular component or technology should not create vendor lock in, cost issues, make/buy cost decisions, usability, scalability, security issues (like PL/SQL injection, SQL injection using AJAX or web services may be affected by (XSS attack or web services Schema poisoning), Environmental network scalability issues. Affect due to new upcoming technology on Existing code.
Available on Call.. for any deployment, production emergency problems.
Read Previous part
Normal Schedule for development role :
9:00-9:30 Check all mail communications of late night loads Etc.
9:30-10:30 Attend Scrum meeting to discuss update status of completed task mappings and mapping for New user stories requirements, understand big picture of work completed by other staff status.
10:30 am -1:30 pm Look at LLD, HLD to create source to target transformations after understanding business logic and coding that in transformations available with tool.
1:30-2:00 Lunch break
2:00-3:00 Unit test data set to validate as required between source and target.
3:00-3:30 Documentation requirements of completed work.
3:30-4:30 Attend defect Call To look into new defects in code and convey back if defects not acceptable as out of scope or not according to specifications.
4:30-5:00 Status update daily work to Team Lead.
5:00-5:30 sit with Team lead, architect code walk through and update with team.
5:30-6:30 Take up any defects raised in Defect meting and Code walk through.
First few days should understand business otherwise cannot create effective reports.
9:00 -10am Meet customer to understands key facts which affect business.
10-12 prepare HLD High level Document containing 10,000 feet view of requirement.
version 1. it may refined later subsequent days.
12-1:30 attend scrum meeting to update status to rest of team. co-ordinate with Team Lead, Architect and project Manager for new activity assignment for new reports.
Usually person handling one domain area of business would be given that domain specific reports as during last report development resource already acquired domain knowledge.
And does not need to learn new domain..otherwise if becoming monotonous and want to move to new area. (like sales domain report for Chip manufactuers may contain demand planning etc…)
1:30-2:00 document the new reports to be worked on today.
2:30-3:30 Look at LLD and HLD of new reports. find sources if they exist otherwise Semantic layer needs to modified.
3:30-4:00 co-ordinate with other resource reports requirement with Architect to modify semantic layer, and other reporting requirements.
4:00-5:00 Develop\code reports, conditional formatting,set scheduling option, verify data set.
5:00-5:30 Look at old defects rectify issues.(if there is separate team for defect handling then devote time on report development).
5:30-6:00 attend defect management call and present defect resolved pending issue with Testing team.
6:00-6:30 document the work done. And status of work assigned.
6:30-7:30 Look at report pending issues. Code or research work around.
7:30-8:00 report optimisation/research.
8:00=8:30 Dinner return back home.
Ofcourse has to look at bigger picture hence need to see what reports other worked on.
Then Also needed to understand ETL design , design rules/transformations used for the project. try to develop frameworks and generic report/code which can be reused.
Look at integration of these reports to ERP (SAP,peopesoft,oracle apps etc ), CMS (joomla, sharepoint), scheduling options, Cloud enablement, Ajax-fying reports web interfaces using third party library or report SDK, integration to web portals, portal creation for reports.
So these task do take time as and when they arrive.
Year 2002 .Com Brust and Iraq war double whamy , recessionary period for IT sector. I had just finished lecturing a college Master’s classes. Evening I would group up with professional for Web development although business was very weak for vendors.
Daily Routine was very strict as Salary were very low (70 Euro per month) So I needed to patch up with other things like preparing for Entrance Exam like CAT/GMAT, read 3 business magazine on Saturday/Sunday (popular Business World India regularly since 18 yrs old so spent by then 6 yrs of reading (600 magazines at rate @1 each fortnight), Business Today and Business India was occasional addition).
Year 2003-4 Was my First full time Software Product development job. people advised me not To learn Java as during .com burst it will never recover. I used to tell to my student that this infact precisely the reason you should learn more of it. (Most other people started considering .NET) But I Sticked with java as I know Demand/supply would come in picture due to my Exposure to 600+ business cases which I read.
Actually same happened in 2003 there was huge demand for Java professional but since not one studied/preferred during there graduations there was huge gap in Market between demand and supply. And My student will come back to me validating telling that “your suggestion was right”.
So In 2003 i got into Java product development position owing to right decision.
.com burst started with “supply will create its own demand” Ended. Now its balance of demand and supply which was in play i.e. supply of .com (websites) constraint by its demand.It was small team precisely 5 people. Salary 70 Euro per month (5000 rupees) in Delhi designation Software Developer. We were making Operation Research based software to optimize space in Physical Warehouses. Software was already in C++. we needed Java on top C++ middleware as using JNI as (as java was becoming popular again as internet Enablement provided connectivity and Ease of use/deployment/Installation).
Java XML API, 2 D graphics (2 print of area), 3D (visualisation of 3D space).
People at home were Critic of my curosity to join new types of courses through new open Education platform. Through which I did 1 post graduate course in Operation Research which was also a contributing factor for my first job requirement may be somebody might have Recommended also Which I am not aware.
Recommendation Culture is very prevalent Even now in India. only 10% jobs would be given without recommendation for any level.
I knew i did not had fancy degrees to support me so I needed to work hard. And get into manageable salary range. IT was my first job outside Home away from parents. I had to send some money back also in that range (saved 14 euro every month to send back home). There were no online tutorials then for J2EE neither I had system So 14 Euro will go in J2EE classes and system access Every month. Rent was 28 Euro for Hostel breakfast was free. so 14 Euro was left for diner/lunch and monthly Expenses.
My routine morning 5 am start at Hari Nagar, Delhi grab seat (read J2EE book on way) in first bus start at 5:30 to work place 3 hours journey reach Hari govind Enclave near preet vihar. through traffic jam private buses.
Finish work by 6:30 move to NOIDA for cheapest and best course in J2EE if u got luck bus was not full hanging in door with bag. at 8:30. walk from Telephone tower reach by 9PM . If bus reached on time and I rushed walking fast i would reach 15 minutes late other wise class gone.
But It was risk worth taking as there was no other option.
Class start at 9 AM finished at 9:45 most of it was initial 15 minutes. So bus delay which I had no control was where my luck would hang if i could get space on the door to hang. So then I had to go back to Hari Nagar Extreme End of Delhi then slow traffic. I would reach by 11.30 at night. Saturday was not off but no classes on Saturday.
It was Extreme tight schedule. To save time and protect from disease I would eat only fruits on Lunch time during work hour.
So Next month I moved near to work place in Laxmi Nagar, just 15 minutes by bus. It saved morning 2 hours to study in New Hostel. New First Work demand also Escalated as work progressed. So mornings with J2SE and night end with J2EE it there was no prolonged stay due to work.
There was urgent need to move to better job after 1 year. I got chance to work on ERP by company which would train me on Peoplesoft ERP in year 2004. As you know due to my curiosity I had a course in ERP as well in Academics back in year 2000-2002. Infact I was only student in whole state writing that paper in DOEACC ‘A’ level Exam. Along with my 3 yrs Masters in Computer Application MCA.(another long story for it pending….Next time)
Market was demanding j2EE but I was in j2SE (So Started learning night classes)
Year 2004 was When IT was recovering from .com brust period. Iraq war had just ended petrol prices started stabilising and Java was in Demand. I got into people soft ERP with java Exposure behind. Company was in new place Gaziabad but it provided cab facility.
So It was my first Mid size company with 200+ people.Third job salary increased to 170 Euro(or 220 dollar or 12,000) rupees per month designation ERP Analyst. Demand from home was increasing as Both Sister looking for Higher Education a cut of 5,000 or 70 Euro Every month. I was back to almost same level with now 30 euro Extra for spending left.
But a new Twist in story Training was not enough to get on work. So I needed to learn People-soft from outside company at my own cost. 400 Euro distributed to 3 months.
So Effectively I had no Earning left even to send back home as I need to pay 130 euro pm to trainer. and left same 70 Euro for Food+Rent+Travel.
After six months things look stabilising although no savings. Then While I was in home town on week end I met a friend who used to prepare with me MCA Entrance Examination just completed MCA from BHU belonging to Dalit communiy. I used to be regular visitor to their home and I knew everyone his home and few issues related to Education and Employment. His Mother told me he got graduate but No job
“Why you not take him with you? ” So same week End he is now with me in Delhi searching job. Only I had salary So we took small house rent 30 Euro a month. Now Combination Dalit, a rajput and Brahmin in single house. We never had fight even single day. Owner of house was Muslim and his son was regular feature in house.
Jugalbandi in Running:
Sharing house 4 boys :A Dalit, brahmin, rajput and muslim .
We all lived quite happily enjoying music, party, dance etc.
Unlike UP in Uttranchal There was no discrimination against any caste. So I was never aware of the Caste Equations and clashes.
All people were from different state as well. And we had no issue at all.
Owner Son a muslim wanted to become Actor. Wanted me to help find school from him.
I told National School of Drama NSD, New Delhi. He brought bike we went there. He had hesitation So I started Enquiring. The Director Was Some Sharma. (forgot First name).
He thought I wanted to be actor So he asked me question:
“Are you Kapoor or Muslim otherwise chances of moving up as actor is rare?”
I told I do not want to be actor pointed toward owner son and said he is muslim and wanted to be actor. So His training begin. We were living in Dilshad Garden.
But I had to plug in Money for Rent,sometimes food and other things a for them As I was only Earner in house a cut for about 50 Euro a month. Which was Okay for me for few month till they got job. 220-50 contribution-70 home left me : 100 Euro for food, living Expenses per month. saving 50 Euro Every month first time in 3 yrs career as IT professional.
After few months the complexity of living in metro came to me.
First incident: Found that Dalit friend had secret affair with his mother’s brother daughter.
Which was hided from me. I used to work in shifts I was not aware what’s going on in room.
Suddenly one day His relative banged he door searching for him. I opened door found that they all are angry and searching for him. Them picture become clear for me that This guy was duping his relative daughter in house. I told them I was not aware what is going on in house? After convincing them as soon he arrive I will inform you. after 4 days he returned.
For next 2 months I had take extra care for him for his love failure and bear all his expenses.
After he become okay. I left house without informing them because I did not wanted to suffer again un-necessarily.
Also there was another development. My office staff I was reporting to Yadav as manager Who worked there 6 yrs. After some time he wanted to put his own community people there which I was not aware. So he told me your department is changing and you will report to A manager Who was Muslim.
I was not aware Yadav belonged to political party which has huge muslim support base.
So Script was simple. Every day a new task a new tool was given.
Also he began spreading rumours. I had built up some knowledge in Peoplesoft by then but if new new areas were given it was difficult to work across. So some day I would spent 3 days 24 hours in office. trying to figure those new task. Atlast he can claim that I am not able to understand properly but since I had PS knowledge he could mark it as Not hving good English skills.
Also to get leverage using his vast political clout Samajwadi leaders of Muslim leaders spread rumours. My crime I praised Mayawati Dalit Rule not being aware that this guy is actually opponent and has political links.
So I was sidelined as Dalit who has changed name to Brahmin Name. I was my first blush with Casteism and community politics in India. Where people can be grouped against some person with no reason by political clout.
Anyhow it was like election canvassing I was new in company and in city. So Everyone was given some different version to get support from them. As most people then has experience only in peoplesoft support only and no development exposure including the old hand So they were very weary of anyone with development skills. It was percepetion in their mind so they thought I had good Java+peoplesoft skills by now. To help it further I new they are planning something I started putting more material in their mind by touting that some guy from MNC is mentoring me on peoplesoft.
I had good Java skills for sure which so of the people there with java background became aware. So i could have easily with Peoplesoft knowledge made up something to buy more time.
Coincidently the person who was teaching me Peoplesoft was also their agent as they offered him job in Hewitt So they were aware of any of my skills.
Peoplesoft got Acquired By Oracle same time. And Oracle cancelled support license of whole company. And now the sword was hanging on Everyone not only on me.
So company had to reduce staff from 250 to just 50 in 3 months. 200 people needed to get out. I was looking at God what a Stew.
Break in Jugalbandi: Peoplesoft Acquisition : all 4 parted ways.
So now All these 200 people needed to find new job. So I Went to Hyderabad without informing these guys at home in Delhi left job and started learning BI and Datawarehousing Tools which I did worked at my stint in Peoplesoft SQR, Oracle production reporting.
My goal was to cover Maximum foot print. I Did learned 5 top BI tools (SAP BO, Microstrategy, IBM Cognos, Actuate , Oracle discoverer) and 5 Top ETL tools(Data Stage, Informatica, Terradata ETL, Ab-initio, SAS ETL,SAP ABAP/BI). Then Oracle Apps technical. day and night I would spend in Lab.
Joined My Fourth job at Ness Technology As Sr Software Engineer in year 2005.
This was my First Job with MNC with around 8,000 Employee where I had comfortable 500 Euro a month Salary.(double from previous job). Leaving first 2 months paid for Loans from learning Expenses.
I was staying in Hostel Then I Experienced another level of politics from people from previous company interfering here as well but now I was determined to cut all politics after long hard work. And I was determined only to look at technology every time people run around playing politics.
Spruced up saying Job was in Bangalore. First time I had taste of multicultural India and also regional politics with group formed inside company based on regions in India.