What is the difference between sharding and replication?


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If I have a select statment which retrives 2 rows, & that rows have the same data in all the fields except the last field and I want to merge the 2 rows to be in 1 row with concatenating the last field which have the different data.... eg: the 1st row has these fields: A-B-C the second row has: A-B-X ........ i want to merge the two row to be in one row like ----> A- B- C,X

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What are the differences between char and nchar in oracle?

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What is the sid in oracle?

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What does `(+)` do in a where clause?

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In which language oracle has been developed?

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What is a tns file?

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Explain about functional dependency and its relation with table design?

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Please explain the difference between outer join and inner join? With examples would be appreciable..!

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How to sort the query output in oracle?

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what is candidate key & super key

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How to create a stored program unit?

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