Informatica Interview Questions

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if i have a file having record sal=10000,and when use router with two groups having condition sal>5000 in one group,sal>7000 in other group.and if two groups connected to two targets.in which target sal=10000 will go? L&T 4 how do u move the code from development to production? 4 How the informatica server increases the session performance through partitioning the source? 1 two tables from two different databases r there . both having same structure but different data . how to compare these two tables ? HP 10 What are teh different tasks that can be created in workflow manager? 1 what is session override? Cap-Gemini 2 What are the join types in joiner transformation? 1 Roles and Responsibilties of Informatica Production Support Member? 3 what is difference between COM & DCOM? Satyam 1 Name 4 output files that informatica server creates during session running? 1 what is the gap analysis? 1 What is the method of loading 5 flat files of having same structure to a single target and which transformations I can use? TCS 8 What are the diffrences between joiner transformation and source qualifier transformation? 2 i have source like X1 10 X2 20 X1 30 X2 40 i want target as X1 X2 10 20 30 40 in informatica HP 1 How to view and Generate Metadata Reports? 1 I am using Informatica 7.1.1. and i used emails task for getting emails but not able to get emails is there any settings in Informatica installation level? 1 In aggregator if u enable sorted input what will be the output and disable sorted wt is output 4 i have f;latfile source. i have two targets t1,t2. i want to load the odd no.of records into t1 and even no.of recordds into t2. Wipro 2 Can anyone know that what is the Source File limitation in Informatica? To be more precise .. how many flat file we can use as a source in a mapping if.. 1) The Structure of flat files are same & 2) If the Structure of flat files are different. Please explain the procedure also if it dosn't bother one much!! 2 What are the mapping paramaters and mapping variables? HI Experts, What is BULK mode and NORMAL mode, Which one gives better performance. How? Please Explain with an example...! It will help's me a lot. Thanks In advance. CTS 2 66 Hi Experts, Performance Wise Which transformation is better in LOOKUP AND JOINER TRansformations? Why? Can anybody please explain it ? Please help me

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Interview Questions of Informatica

Transcript of Informatica Interview Questions

Page 1: Informatica Interview Questions

if i have a file having record sal=10000,and when use router with two groups having condition sal>5000 in one group,sal>7000 in other group.and if two groups connected to two targets.in which target sal=10000 will go? L&T 4 how do u move the code from development to production? 4 How the informatica server increases the session performance through partitioning the source? 1 two tables from two different databases r there . both having same structure but different data . how to compare these two tables ? HP 10 What are teh different tasks that can be created in workflow manager? 1 what is session override? Cap-Gemini 2 What are the join types in joiner transformation? 1 Roles and Responsibilties of Informatica Production Support Member? 3 what is difference between COM & DCOM? Satyam 1 Name 4 output files that informatica server creates during session running? 1 what is the gap analysis? 1 What is the method of loading 5 flat files of having same structure to a single target and which transformations I can use? TCS 8 What are the diffrences between joiner transformation and source qualifier transformation? 2 i have source like X1 10 X2 20 X1 30 X2 40 i want target as X1 X2 10 20 30 40 in informatica HP 1 How to view and Generate Metadata Reports? 1 I am using Informatica 7.1.1. and i used emails task for getting emails but not able to get emails is there any settings in Informatica installation level? 1 In aggregator if u enable sorted input what will be the output and disable sorted wt is output 4 i have f;latfile source. i have two targets t1,t2. i want to load the odd no.of records into t1 and even no.of recordds into t2. Wipro 2 Can anyone know that what is the Source File limitation in Informatica? To be more precise .. how many flat file we can use as a source in a mapping if.. 1) The Structure of flat files are same & 2) If the Structure of flat files are different. Please explain the procedure also if it dosn't bother one much!! 2 What are the mapping paramaters and mapping variables?

HI Experts, What is BULK mode and NORMAL mode, Which one gives better performance. How? Please

Explain with an example...! It will help's me a lot. Thanks In advance. CTS 2 66 Hi Experts, Performance Wise Which transformation is better in LOOKUP AND JOINER TRansformations? Why? Can

anybody please explain it ? Please help me out from this Question. Thanks In Advance. CTS 0 19

What type of sorting algorithm does the Sorter Transformation use, to do its sorting Operation? 1. Bubble sort 2. Insertion sort 3. Shell sort 4. Merge sort 5. Heapsort 6. Quicksort 7. Bucket sort Qwest 0

15 hi talents, how do u get sequece numbers with oracle sequence generator function in informatica.... i dont need to use sequence generator transformation..... how do u achieve this??? HP 0

20 Hi experts, table 1 has 10 records, table 2 has 5 records select * from table1, table2; What

is the output for this query???....plz answer TCS 2 170 write a query to get maximum salary

from the employers table without duplicates....kindly help me CTS 0 17 Converting Rows to columns I have Relational source like his. JAN FEB MAR APR 100 200 300 400 500 600 700 800 900 100 200 300 I need to convert these rows into columns to the targe. MONTH TOTAL JAN 1500 FEB 900 MAR

1200 APR 1500 Please experts help me HP 0 24 How you load distinct records into one target

and duplicate records into another target? Mphasis 1 57 How you count the number of

Page 2: Informatica Interview Questions

records available at your source? Zensar 1 130 What is the grain level in DWH? If i have year

to day. what is the grain level of DWH from year to day. Zensar 0 11 Hi I have two sources like A, B. My source A contain 10000 million records from that i need 20 attributes. My source B has also same 10000 million records from that i need only 1 attribute. By using Joiner i have to load into target? Is there any issue regarding this? if issue is there how to tune this mapping in best way? Zensar 0 16

How IN function works in informatica? Is it similar that of oracle IN function or different? Explain

Mphasis 0 13 How You Pull the records on daily basis into your ETL Server. TCS 0 13

Is there any model difference between ODS and DWH Zensar 1 70 how to through logic

of informatica using the push down optimization into oracle. Hexaware 0 23