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What are primary keys and foreign keys?
Primary keys are the unique identifiers for every row. They must have unique values and cannot be null. Due to their significance in relational databases, Primary keys are the most fundamental of all keys and constraints. A table can have only one Primary key. Foreign keys are both a method of ensuring data integrity and a manifestation of the relationship among tables.
Navigation to a subsequent screen can be specified statically/dynamically Yes, navigation to a subsequent screen can be specified statically.
Now let's define range which a normalised mantissa can signify. Let's presume that our present representations has normalised mantissa so left most bit can't be zero so it has to b
How can it be achieved in designing e-cash based system? E-cash is essentially an online solution. The buyer must validate the coins by the issuer in order to get the purchase
Q. Example of arrays pointers? General form of declaration of array in Fortran 90 is type, DIMENSION(bound) [,attr] :: name E.g. the declaration INTEGER, D
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Explain Dataset Accept Changes and Data Adapter Update methods? Data Adapter Update method Calls the respective INSERT, UPDATE, or DELETE statements for every inserted, update
how many errors will be left after defect amplification and removal method on the following data design=40 analysis=30 maintenance=20 testing 35 coding 25 take 75% removal efficie
Explain the term - Integrity In most cases, corporate data should remain unchanged by third parties, so the system should be capable of ensuring that only authorised personn
Ask question #MinimYour professor wants you to fill a two-dimensional N by N matrix with some numbers by following a specific pattern. According to his explanation as in the figure
What is the basic requirement for establishing VLANs?
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