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What is object identity?
An object retains its identity even if some or all the values of variables or explanations of methods change overtime.
What is the max. no. Of structures that can be included in a table or structure. Nine.
What is the use of with clause in SQL? The with clause gives a way of defining a temporary view whose explanation is available only to the query in which the with clause occurs
While sorting field groups we cannot use more than one key field False.
Define average latency time. The average latency time of the disk is one-half the time for a full rotation of the disk.
Express the following queries in SQL: (a) Write the SQL code that will create ALL the four tables given in the appendix. Your answer should not contain the primary key and
What are the advantages and disadvantages of merging an association into a class? Advantages: i) Less number of tables ii) Faster performance due to the fewer tables
What is a transaction ? The Transaction is a unit of data processing. For instance, many of the transactions at a bank may be withdrawal or deposit of money; transfer of money f
Consider the two relations given below Given that A is the primary key of R, D is the primary key of S and there is a referential integrity among S.A and R.A, discuss all
What do you understand by RAID? Explain RAID Level 4 and Level5? RAID - It is stands for Redundant Array of Inexpensive Disks (as named by the inventor), or alternatively Re
Hierarchical model is also known by? A hierarchical model is also known as a Tree structure.
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