when we login sql editor using username and password then it says this error "could not resolve service name" then what can we do at client side.( here thing is tnsnames.ora file is ok till yesterday and worked well, but now it giving error.)

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Explain meant by 3-tier architecture?

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What are the lock types?

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1. Difference between Lookup and join? 2. Difference between funnel and join? 3. What type of load you have used in your project? 4. What type of data warehouse schema you have fallowed in you project? 5. How many fact tables and dimension tables is their in project? 6. How do you kill the job process using windows environment? 7. Difference between sequence file and dataset? 8. What is delta load and subsequent load? 9. By using which stages you have implemented the SCD

0 Answers   Wipro,

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Define ddl interpreter.

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Is sql a rdbms?

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How many types of database languages are?

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What are the functions of database management system?

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What is etl process in data warehousing? What are the different stages in 'data warehousing'?

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What are databases what are the uses of databases?

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What is CRUD Operations?

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What is Log Switch ?

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