Did you manage to complete your book / part of your book ?
Can you please update your site ?
Thanks

Did you manage to complete your book ? How to buy it ?

2. Post: Lets you don’t have a system to check authors at entry time. And the request system adds the author. Now the message that a new author has been added should be sent to some system which will at some point try to verify if it should allow a new name entry or merge with the existing one. This is Post master data creation MDM.

3. Another task of MDM system is to distribute this master data in the organization.

If the load is not daily then I would like to have a separate date field like effective data which can replace the processing date in the first scenario.

I was trying to build something similar. Basically a common framework for creating measures for Dashboards. But I didn’t make much headway as to how to have a standard frame work as each measure involved different calculations and ended up hard coding the actual logic in the ETL though manage to have table driven approach for storing all measures and their definitions.

Any elaboration or tips on the rule based approach would help.

Thanks
Mani

Our software Visual Importer enterprise did 14000 records per second

http://www.dbsoftlab.com/Latest/NEW-VISUAL-IMPORTER-ETL-UP-TO-7-TIMES-FASTER.html

Mike

The above mentioned book seems like a savior to the kind of job i am doing….. would be great to have it…… how do i get this book….

Thanks & Regards
Nehru
ETL Lead

Can you please let me know how can I get this Book ..

Thanks
Shruthi

I have completed my training on informatica will you guide me how to do certification and how can i buy informatica book

Thanks & Regards

Kanchan Sinha

Can you also include a section on “Testing ETL” w.r.t to black box and white box as well.

Thanks

-Sanjay

I will start from Question no. 4.

4) DTM – Stands for Data Transformation Manager. This is a unix process /windows service which runs on Informatica server and does the actual processing of the ETL code.
5)Mapplet is like function we use in programming language. This is used for re-usable code where we can pass certain value and get back. It can be used in desigining the mapping to get a modular/manageble/scalable code.
6)Look at the Help file for connected and unconnected lookup. Historically this is the most widely asked question in any Informatica interview.
7)Update Strategy is a transformation which flags row for update/insert/deletes. Technically update/insert/deletes can also be achived without using this transformation by configuring it in the session.
Options : DD_INSERT (1) DD_UPDATE (2) DD_DELETE(3)
8)Subject Area is generally a set of data organized to reflect a specific are of business such as finance or sales.
9)Truncate is a type of DDL. No commit is needed. It resets the HWM and cleans up all the storage segments. No rollback is possible because of implicit commit. Delete can be rolled back, does not clean up the data segments so the HWM stays intact. Less efficient.
10)Type 1 – DD_UPDATE,
Type 2 – DD_UPDATE/DD_INSERT
Type 3 – DD_INSERT.
11)Look in the help files for syntax. ( I don’t know why the poster of the question is latched up with Update Strategy transformation. He must have got burnt in some of this projects.)
12) Bitmap indexes are used to enhance the join performance in STAT design. Don’t go by the myth of cardinality(Bitmaps are used on for lower cardinality.). It is a major component to enhance the joins between facts and dimension. It becomes more important if you are using Oracle propriety star_transformation_enabled=TRUE parameter in init.ora file.
13)Bulk bind is used enhance the performance of PL/SQL fetch engine. It binds a variable so that the fetches are in bulk instead of streams of one row at a time.
14)Source Qualifier (if using a homogeneous database or if the tables are in the same instance),Joiner, Filter, Router.
15)Look at the basic database book to find about referential integrity. You rectify it by loading the parent first and make sure that child record is not a orphan i.e. it has a valid parent record.
16) You specify in Informatica which target instance gets loaded first or in order.
17)Shortcuts are easy way to manage Informatica code. It is a reference to a common object in the shared folder. It is a instantiation of informatica objects. Which can be used/re-used. If the object changes it is changed at once plane. If you use copy you have to change at multiple places.
18) Lookup Ans 4.
19) Shared folder is a folder which is shared by everybody and contains the object on which shortcuts are created.
20)Source Qualifier(If Relational)/Lookup (If Relational)
21)Bulk load is used to load records in bulk to enhance performance. It bypasses all the database level logging. It can only be used when no index is defined on the table. It is a file level operation. The records are directly written at the datafiles. Normal load is a regular insert we know about. With logging, with indexes, slower and can be rolled back. In informatica it is defined at the session level.
22)Local is all we know about. Global repository holds all the enterprise level common objects which can be re-used.
23)Data driven sessions are those session which uses Update Strategy transformation or session are used to flag the rows for insert/update/delete. (Again a Update strategy question).
24) To see the common error. Just run the session, it will fail first time. That is common for you.If it runs for successfully first time. There must be something wrong.
25) Sessions can be bundled up together logically by subject area so that it can go in the workflow as one logical piece.
26)Change Data Capture is a mechanism of capturing changed data since the last load. Striva in mainframes. It involves reading database log files. Subscriber/Prescriber views. Triggers/Date fields in oracle.
27)Tracing level is defined as amount of information which will go in Informatica log files.
28)Target load order is used implement constraint based loading.(Load parent before child.)
29)Deployment Group – See the Informatica help files. It is used for code migration.
30)Partition – When—to increase performance in big data loads and lot of cpu. How – in session. ( I am not a big fan of this. I am yet to see some substantial gains of parallel processing in Informatica. I have seen ab-initio so that may be the reason I don’t appreciate Informatica partitioning.)
31)Performance of a Update Strategy ???? This is a fluff question. Update Strategy does not use any cache so it is just like expression transformation. How can you enhance performance of expression? (Again a Update strategy question.)
32)In repository manager. Select all the then validate.
33)Using a view also you can use lookup(which is nothing but a outer join).
34)See Informatica help.
35)N(Depends on your licensing agreement with Informatica)
36)2
37)In the session. For details see the help files.
38)By checking sorted input and passing a sorted data through it.
39)Check the sorted port in Source Qualifier.
40)N.
41)Question is not clear. You don’t define a parameter file. You create a file and tell the session to use it by passing its name in pmcmd or workflow or at session level.
42)One
43)One.(Again a Update Strategy).
44)Question is not clear. What types of details specifically Mr. Informatica consultant is looking for.8.5 has changed the way you look at the log details.
45) Thumb rule for and SQL joins and Informatica joiners. If you want to join n tables minimum number of joins you need is n-1.
46) Yes.
47) Default files are. Log files and Bad files. (For other files like err, target files you have let the Informatica know.
48) Normal View is not a physical object. It is created at runtime by the select statement. Materialized View is a physical object with real data. It has several use. For more details look into Oracle documentation. It is a major performance booster when you need summary,aggregated or complex joins to be calculated. It pre-calculates it and is ready for use when you need them and it is really fast. Be careful to choose the mechanism you want to refresh it.

-Sanjay Prasad

Calculation comes up 800 /Day

Thanks

I’m looking for your book. Please let me know how can I buy and what is the cost of it. Is it only available online?

I have completed trainning on Informatica.I want all FAQs regarding Informatica with answer.

Thanks.

i need a faq on informatica, if any have it pls forward to my mail khalandar.n@gmail.com thank you

Now I.m studying data warehouse.. Where i can i get some manuels or help file to study Informatca 7.1 …

2) Surrogate is an artificial key it is used as a substitution for natural primary key in order to provide data consistency.

3) Mapplet contains more than one transormation and is a transformation logic that can be reused in multiple mappings.

Reusable transformation is a single transformation that can be called from other transormations in the mapping.

Omkar

Will it focus on general etl concepts or informatica tool etl concepts in broad sense

Try this query in google search :

+(“index of”) +(“/ebooks”|”/book”) +(chm|pdf|zip|rar) +ETL

to find a particular eBook file

and the best ebook search engine i know is http://www.bookilook.com, giuciao.com

I am vinay from hyderabad,finished Masters degree and training in Informatica and now searching for job in informatica domain.

one more suggestion ,it is better to have forum in this website where all the discussion and queries will be at one place visible only for members who are registered and the membership must be free because i strictly feel Knowledge sharing must be free of cost

thank you,
Wishing you All the Best
Vinay

Shell scripting is the easy. Don’t try to avoid it. It will help you a lot in ETL. Ultimately lots of file handling or binding multiple ETL process is done by shell scripts. Given a choice between a consultant who knows shell scripting and the one who does not; the choice is clear

How can your book on ETL be purchased and from where? I sent an email from my other account already.

Hoping to hear from you soon.

Regards,
Amit

Thanks and Regards
Balachandar Ganesan.

Please let me know whether your book is published or not.
I would be intersested to buy this book.

Regards
Santosh

I would like to have your book. Please let me know how can I buy and what is the cost of it. Is it only available online? what is the mode of buy and paying for your book?

Please let me know. I am working in data warehousing in India.
I have already sent one email from my office account to enquire about your book and also requested you to guide me to develop etl templates which could be used across projects. Does your book cover this aspect.
I would like to develop such templates using informatica as I know this tool to some extent. Please help.

I would highly appreciate your response.

Santosh