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List the set operations of SQL?
1) Union
2) Intersect operation
3) The except operation
What are composite objects? Objects that have other objects are known as complex objects or composite objects.
Given the following relations TRAIN (NAME, START, DEST) TICKET (PNRNO., START, DEST, FARE) PASSENGER (NAME, ADDRESS, PNRNO.) Write SQL expressions for the following queries: No
Give the levels of data abstraction? There are three levels of Data Abstraction a) Physical level b) logical level c) view level
Project: Microsoft Access You have been asked by the ABC Tanning Salon to create a database that can be used to track the salon's customers. You are to create a table in Access
SELECT Statement This statement is used for retrieving information from the databases. It can be coupled with many clauses. Let us talk about these clauses in more detail:
System error :These contain errors in database system or the OS, example, deadlocks.Such errors are fairly hard to detect and need reprogramming the erroneous components of the sys
CAN SOMEONE HELP ME WITH ENTITY DIAGRAMS IN FIRST NORMAL FORM?
What are the two approaches to store relations in distributed database? a) Replication b) Fragmentation
Explain the function of Object model Object model describes the classes of objects in system, including their attributes and operations which they support. The analysis object
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
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