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List the table modification commands in SQL?
A) Deletion
B) Updates
C) Insertion
D) Update of a view
er diagram of sport
What is Relational calculus? Relational calculus is a Non- Procedural language.
What is object identity? An object retains its identity even if some or all the values of variables or explanations of methods change overtime.
The Update Operations : Update operations are used for altering database values. The constraint violations faced by this operation are logically the similar as the problem faced
What are the benefits of prepared statements and place holders? Parameter binding operations automatically handle escaping of characters Encourage Statement reuse
While sorting field groups we cannot use more than one key field False.
What is known as clustering file organization? In the clustering file organization, records of several dissimilar relations are stored in the similar file.
Sequences Sequences: Automatically produce unique numbers Are sharable Are typically used to make a primary key value Replace application code Speed up t
Clustering Indexes It may be an excellent idea to keep data of the students in the order of the programme they have registered as most of the data file accesses may need studen
Example : Create a sequence named SEQSS that starts at 105, has a step of 1 and can take maximum value as 2000. CREATE SEQUENCE SEQSS START WITH 105 INCREMENT BY 1 MAX VA
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