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What is NULL? Simply NULL means not in value.
Serialisability: Any schedule that makes the similar results as a serial schedule is known as a serialisable schedule. But how can a schedule are determined to be serialisable or n
Some disadvantages of File Oriented System ?
assume we have the following apllicationthat model sccer team the games they play and the players inv each teamin the design we want to capture
What are the types of storage devices? Primary storage Secondary storage Tertiary storage Volatile storage Nonvolatile storage
Benefits: It limits data access. It makes difficult queries look easy. It permits data independence. It presents dissimilar views of the similar data.
Enumerate or state the steps in creating a relevant database of a shop.
Which product produces the relation that has attributes of R1 and R2 ? Cartesian product produce the relation which has attributes of R1 and R2
Differance between procedural and non procedural DML? Procedural and non procedural DML Procedural DML exactly what data is require and how to obtain those data. Non procedural
Which database object does not physically exist? A view database object does not physically exist.
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