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More Database Systems Related questions:
To install a second IDE drive into a computer, you must:
Options: Set the master-slave jumper to slave on the second drive, Use the IDE configuration software to set the new drive as slave, Verify that you define the new drive as D: in the CMOS setup, Verify that you attach the drive to the connector at the end of the ribbon cable
Options: A) writes computer programs for specific problems
B) operate the device which input and output data from the computer
C) normally require a college degree in computer science
D) all of the above
Which of the following is true concerning a global transaction?
Options: The required data are at one local site and the distributed DBMS routes requests as necessary., The required data are located in at least one nonlocal site and the distributed DBMS routes requests as necessary., The required data are at one local site and the distributed DBMS passes the request to only the local DBMS., The required data are located in at least one nonlocal site and the distributed DBMS passes the request to only the local DBMS.
In an SQL SELECT statement querying a single table, according to the SQL-92 standard the asterisk (*) means that:
Options: all columns of the table are to be returned., all records meeting the full criteria are to be returned., all records with even partial criteria met are to be returned., None of the above is correct.
Which of the following statements, is (are) not true for the lease option
Options: Lease charges are lower than rental charges for the same period and are also tax deductable., Lease may be written to show higher payments is early years to reflect the decline in value of the system, Insurance, maintenance and other expenses are included in the rental charge, All of the above
Options: a. Reports can be used to retrieve data from tables and calculate
b. Queries can be printed in well formatted manner and presented as the information
c. Queries can include calculated fields that do not exist in table
d. Reports and forms are similar but forms are use to print but reports to display on screen only
Options: Â a combination of computer hardware
B. Â a program which translates from one high-level language to another
C. Â a program which translates from one high-level to a machine level language
D. Â None of these
Ans:– C ,
Which of the following hardware component is the most important to the operation of database management system?
Options: a . high resolution video display b . printer c . high speed, large capacity disk d . plotter
Which of the following statements best describes the batch method of input?
Options: Data is processed as soon as it is input, Data is input at the time it is collected, Data is collected in the form of source documents, placed into groups, and then input to the computer, Source documents aren't used