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What is relational database?
Relational database has data that is perceived as tables. A relational DBMS manages tables of data and associated structures that enhances the functionality and performance of tables. All RDBMSs support a common core of SQL for explaining tables, manipulating data in tables and controlling access to tables.
Now consider the following spreadsheet: Formula in cell D2 is = (B2/C2) Replicating this formula (by highlighting then drag down to D7) gives all the formulas needed in cell
What is meant by refreshing of the screen? Some method is required for maintaining the picture on the screen. Refreshing of screen is completed by keeping the phosphorus glowi
Grid Computing means applying the resources of a lot of computers in a network simultaneously to a one problem for solving a scientific or a technical problem that needs a large nu
The idea behind inline functions is to insert the code of a known function at the point where the function is called. If done carefully, this can improve the application's performa
We now consider the relation between passwords and key size. For this purpose consider a cryptosystem where the user enters a key in the form of a password. Assume a password consi
Perl is an interpreted language (not compiled, like Java) which is ideally suited for CGI programming. It has its roots in UNIX system administration and offers various features li
Q. Describe Miscellaneous and Privileged Instructions? These instructions don't fit in any of above categories. I/O instructions: start I/O, stop I/O, and test I/O. Characteris
Under what conditions can one pointer variable be subtracted from another? Pointer subtraction isn't used very much, but can be handy to determine the distances between two arr
SCSI Bus: Defined by ANSI - X3.131 50, 68 or 80 pins Max. transfer rate - 160 MB/s, 320 MB/s. SCSI Bus Signals Small Computer System Interface
Q. Which things should microprocessor validate? A microprocessor should validate: Powerful addressing modes More addressing capability More throughput Po
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