INTERVIEW QUESTIONS DATA WAREHOUSING INFORMATICA DETAILS

Question: What is source qualifier transformation?

Answer: When you add a relational or a flat file source definition to a maping,U need to connect it to a source qualifer transformation.The source qualifier transformation represnets the records that the informatica server reads when it runs a session.

When you add a relational or a flat file source definition to a maping,U need to connect it to a source qualifer transformation.The source qualifier transformation represnets the records that the informatica server reads when it runs a session. Source: CoolInterview.com

SQ transformation is a transformation which is automatically generated to read data from source tables into informatica designer. Source: CoolInterview.com

source qualifier transformer is like a waper to database data .it changes the data fron the rdbms in tabular format in such a way that informatica server recognises easily while loading data from source to targets using transformers.
it is of three more types
application sq:it is for erp files
xml sq: it is for xml files
mq sq:it is for ibm products or as400/mainframes Source: CoolInterview.com

SQ transform also provides data types which are compatible with both sources and targets Source: CoolInterview.com

Every source table definationy default associate with source qualifier Tx ,which is responsible for preparing an SQL select statementused for data extraction. Source: CoolInterview.com

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