What are the validations performed on the source data? If
there are junk data available in the source data, how to
eliminate it?
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Is it good to store images in database?
Its possible to use auto increment in oracle or not? If no means why?
What is table scan and index scan?
What are the various ways to execute a query in teradata?
What is the best database?
Explain buffer manager?
How to fetch/retrieve the data from hieranchical database and put it into the relational database? for e.g I want to extract the data from IMS DB2 database which is a hierarchical db and load that data into the relational database which is a SQL server.Are there any tools available for directing extracting data from hierarchical db and loading into the relational database (SQL server)?
query to Compare data of two tables between two different Databases(Oracle and SQL Server) Eg., Source Database: Oracle Table: Employee Target Database : SQL Server Table : emp
can any one explain about normalization forms with clear explanation in interview point of view. thanks for ur answers.
What is the difference between specialization and generalization?
Display the employees whose salary is less than average salary.
Differentiate between extension & intension?
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