What is the difference between substr & instr functions?
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Explain compound trigger in oracle?
How can you merge two tables in oracle?
Differentiate between post-database commit and post-form commit?
What is hash cluster in oracle?
How can we Update a table with out using UPDATE command?
How to test null values?
How to connect to the server with user account: sys?
waht is the difference between primary key and super key?
What is a table index in oracle?
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9)When information has to be stored w.r.t employees and their respective departments, which of the following is the Correct formulation of entries? A)Employee and department would together be represented as an entity. B)This is too less information to decide on entities. C)An employee would be one entity and a department would be another. D)Such a scenario cannot be modelled in RDBMS
what is trigger?