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Write A short note on temporary tables?
Temporary Tables - Temporary tables exists solely for a particular session, or whose data persists for the duration of the transaction. The temporary tables are commonly used to support specialized rollups or exact application processing requirements. Unlike a permanent table, a temporary table does not automatically allocate space while it is formed. Space will be dynamically allocated for the table as rows are inserted. The CREATE GLOBAL TEMPORARY TABLE command is used to form a temporary table in Oracle. CREATE GLOBAL TEMPORARY TABLE ( )ON COMMIT {PRESERVE|DELETE} ROWS;
What is object containment? References among objects can be used to model dissimilar real-world concepts.
A collection of a same kind of entities is known as an Entity Set or entity type. Example: For the COLLEGE database defines earlier objects of concern are Students, Faculty,
Explain the Attribute inheritance Ans: Throughout the rendering of the objects in a view, attribute sets of objects higher in the view hierarchy are inherited via objects below
What are the different kinds of database end users? Discuss the major activities of each? End-Users - End-users are the people whose jobs need access to the database for que
Explain in details about Data Sharing
What is the use of integrity constraints? Integrity constraints make sure that changes made to the database by authorized users do not result in a loss of data consistency. The
Before defines the second type of integrity constraint, viz., Entity Integrity, we should be well-known with the concept of NULL. Mostly, NULL is intended as a basis for dealing
Define the terms i) Entity set ii) Relationship set Entity set: The set of all entities of the similar type is termed as an entity set. Relationship set: The set of all rela
Section A: Use the following tables to create a database called College. Use SQL commands. Student stuid(primary) lastName firstName
Using your cache simulator and using smalltex.din as your memory trace determine the total miss rate, compulsory miss rate, capacity miss rate, and conflict miss rate for the follo
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