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Create a table according to given data:
Course(Course_Number#, CourseName, Pre_Req_Course_Number)
1. Manufacturer(Manufacturer_Number#, Name)
2. Bed(Bed_Number#, BrandName, Size, Length, Width)
3. Category(Category_Number#, Name)
4. Mattress (Mattress_Number#, BrandName)
5. MattressAndBed(Mattress_Number#,Bed_Number#, Comfort_Rating ): Mattress and Bed has many to many relationships, so this extra entity will be created.
What are the reasons for having variable length records? What are the various ways to store variable length records? Variable-length records arise in a database in various wa
The primary key is selected from the
What is a block and a block number? A block is a contiguous sequence of sectors from a single track of one platter. Every request specifies the address on the disk to be refere
diagrams and meaning
DISADVANTAGES OF RDBMS
Define multivalued dependency and 4NF. Ans: Multivalued Dependency - Assume R be a relation schema and let α ⊆ R and β ⊆ R. The multivalued dependency α →→β holds o
What was the method in which records are physically stored in a specified order according to a key field in each record ? A method in which records are physically stored within
random file orgnization
Which language used in application programs to request data from the DBMS is referred? Language which is used in application program is DML to request data from the DBMS is ref
i am required to come up with entities relationships, optionality and cardinality from a scenario. there is a night club and bookings for a musician band
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