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What is sql in dbms?
Define data, entity, domain and referential integrity?
Who is the founder of database?
What are the two major subsystems of system r?
How to detect the server version?
What are the 4 main objects of a database?
1.If we have a Salary coloumn in Staff entity with this description the salary must be monetary and >=$35450.00, how we can write it in into schemain SQL? 2. If we have Weight and Marks in Assessment entity and the Weight has the description of this it must be Non-zero percentage. And also the Marks attribute stores the maximum possible raw mark for assessment (e.g., 30), while Weight stores of the weight of this assessment for the paper as a whole (e.g., 10%). If Marks is not specified, then Weight is used for both. How we can convert this into schema in SQL????
Why is it better to use an Integrity Constraint to validate data ?
What do you understand by fragmentation?
What is 2-tier architecture?
What are the restrictions applicable while creating views?
What is the purpose of a database middleware other than translating the jdbc api calls to multiple vendor specific dbms calls?
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