Options: (A)Non-trivial extraction of implicit previously unknown and potentially useful information from data(B) Set of columns in a database table that can be used to identify each record within this table uniquely (C) collection of interesting and useful patterns in a database (D) none of these 5
Options: a. Right-click the row heading where you want to insert the new row and select Insert from the shortcut menu b. Select the row heading where you want to insert the new row and select Edit >Row from the menu c. Select the row heading where you want to insert the new row and click the Insert Row button on the standard toolbar d. All of the above
Options: an error-detecting code based on a summation operation performed on the bits to be checked, a check bit appended to an array of binary digits to make the sum of all the binary digits., a code in which each expression conforms to specify rules of construction, so that if certain errors occur in an expression, the resulting expression will not conform to the rules of construction and thus the presence of the error is detected., the ratio of the data units in error to the total number of data units
An autonomous homogenous environment is which of the following?
Options: The same DBMS is at each node and each DBMS works independently., The same DBMS is at each node and a central DBMS coordinates database access., A different DBMS is at each node and each DBMS works independently., A different DBMS is at each node and a central DBMS coordinates database access.
. After entering all fields required for a table, if you realize that the third field is not needed, how will you remove?
Options: a. You need to delete the whole table. There is no method to remove a particular field only.
b. Delete all the fields from third downwards and reenter the required fields again.
c. Select the third column in datasheet view then delete
d. Select the third row in table design view then delete