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List the types of authorization.
A) Read authorization
B) Write authorization
C) Update authorization
D) Drop authorization
what do you mean by primary key constraint?
Define Timestamp ordering Ans In timestamp-based method, a serial order is made among the concurrent transaction by assigning to every transaction a unique nondecreasing number
In this assignment, you will create a program that works with multiple tables. In this assignment, you will work with the factory and sales tables. 1. Create a new project nam
Why did SAP introduce the extended star schema? Explain why it is reported to be better than the traditional schema model?
What are domain constraints? A domain is a set of values that might be assigned to an attribute .all values that appear in a column of a relation must be taken fro
what are the topics in data management
it can be possible to create any table without primary key
What are the advantages of object ID? The main advantages of Object IDs are as below: i) IDs are not changing ii) IDs are completely independent of the changes in data v
Consider a typical sales invoice that would include the following information. Design a single table to hold all of the information required to store an invoice including this info
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
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