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Where does view definition stored?
A view definition is permanently stored as part of the database.
explaination
What is a dataset? A dataset is an in-memory database that is disconnected from any regular database, but has all the significant characteristics of a regular database. Dataset
describe all the tables you have created. ?get table_name, status, num_rows, user_stats in user_tables system view ?get table_name, constraint_name, constraint_type in user_constr
Critically explained the benefits and limitations of different database technologies with proper examples
Sub query in the UPDATE command : Example : //Double the commission for employees, who have got at least 2 increments. UPDATE EMP SET COMM = COMM * 2 WHERE
The External or View Level The external or view level is the highest level of abstraction of database. It gives a window on the conceptual view, which permits the user to see
what is meant semantic query optimization? how does it differ from other query optimization techniques?
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State the Object Design for Processing The object design phase comes after analysis and system design phase. The object design phase includes implementation details like as i
Q. What is relational algebra and calculus? Explain the relational algebra operators :- Selection and predicate, set operation, joins and division. Sol. Relational Algebra
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