Top Informatica Interview Questions :: ALLInterview.com http://www.allinterview.com Top Informatica Interview Questions en-us What is Performance tuning in Informatica? http://www.allinterview.com/showanswers/15949.html The goal of performance tuning is optimize session performance so sessions run during the available load window for the Informatica Server. Increase the session performance by following. The performance of the Informatica Server is related Explain about HLD and LLD ? http://www.allinterview.com/showanswers/58137.html HLD refers High Level Design and LLD refers Low Level Design Means HLD contains overview of the design and LLD contains detailed design. WHAT IS UPDATE OVERRIDE . DIFFERENCE BETWEEN SQL OVERRIDE AND UPDATE http://www.allinterview.com/showanswers/32091.html hai i guess this question comes under scd's itseems, becoz in scd type1 we will overwrite the oldvalue with new value.here we dont have any history what are the difference between Informatica 7.1 and 8.1? http://www.allinterview.com/showanswers/60122.html DIFFERENCE BETWEEN INFORMATICA 7.1 AND 8.1 =========================================== Object Permissions* Effective in version 8.1.1, you can assign object permissions to users when you add a user account, set user permissions, or edit a Generally how many Fact Tables and Dimensions Table you have used in http://www.allinterview.com/showanswers/29468.html it depends upon the requirement of the client . dimension table is loaded first , using the primary keys of the dimension table , fact tables are loaded .size of the fact and dimension table also depends upon the requirement . size of the table a Whatis the difference between View and Materialized View ? http://www.allinterview.com/showanswers/37203.html In view we cannot do DML commands where as it is possible in Materialized view. What is a diff between joiner and lookup transformation http://www.allinterview.com/showanswers/56275.html Joiner will join the two different data sources based on a join condition ,and pass only the rows which satisfy that condition.discards the remaining rows. Joiner transformation supports 4 types of joins at Informatica level Normal Master In real time scenario where can we use mapping parameters and variabl http://www.allinterview.com/showanswers/35417.html Mapping & Mapplet, v can use the mapping parameter & variable. V can also create the parameter & variable in the sesssion level. What is the filename which you need to configure in UNIX while instal http://www.allinterview.com/showanswers/15993.html pmserver.cfg How could we generate the sequence of key values without using seque http://www.allinterview.com/showanswers/36656.html by using pre sql in source qualifier we can generate sequence in the target TWO FLAT FILES ARE THERE , EACH HAVING NO MATCHING COLUMNS . HOW CAN http://www.allinterview.com/showanswers/33460.html This can be done by passing all ports to an expression transformation and then creating a output port say ID=1 in both the expression transformation of each file and then join it using a joiner on ID,hope this helps.. By using Filter Transformation,How to pass rows that does not satisfy http://www.allinterview.com/showanswers/35416.html u can not pass the rows if condition is not satisfy . What is operational data source (ODS)? http://www.allinterview.com/showanswers/15965.html thsi is the data base used to captur daily business activites and this is normalized databse. HOW TO GET THE LATEST DATA IN SCD ? http://www.allinterview.com/showanswers/32083.html based on time stamp two tables from two different databases r there . both having same s http://www.allinterview.com/showanswers/33461.html Using Joiner Transformation, to compare the two tables.