Introduction to Database System The modify operation is likely to be done after Delete Look-up Insert None of these All of these Delete Look-up Insert None of these All of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is not a restriction for a table to be a relation? No two rows in a table may be identical. The columns must be ordered. All of the entries in any column must be of the same kind. The cells of the table must contain a single value. No two rows in a table may be identical. The columns must be ordered. All of the entries in any column must be of the same kind. The cells of the table must contain a single value. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A race condition occurs when Two concurrent activities interact to cause a processing error two users of the DBMS are interacting with different files at the same time Both of the listed here None of the listed here Two concurrent activities interact to cause a processing error two users of the DBMS are interacting with different files at the same time Both of the listed here None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System With respect to data input, the most accurate description of batch control is All of these controlling the input of each input clerk comparing to a pre-calculated figure the total of a data item summed across a batch records put into the system None of these dividing documents to be entered into batches All of these controlling the input of each input clerk comparing to a pre-calculated figure the total of a data item summed across a batch records put into the system None of these dividing documents to be entered into batches ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which type of entity has its relationship to another entity determined by an attribute in that other entity called a discriminator? Instance entity Subtype entity Archetype entity Supertype entity Instance entity Subtype entity Archetype entity Supertype entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System If you want to organize a file in multiple ways, it is better to _____ the data rather than to sort it. Delete Index None of these Sort Key Update Delete Index None of these Sort Key Update ANSWER DOWNLOAD EXAMIANS APP
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