Introduction to Database System Entity instances are associated by relationship classes. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is not a restriction for a table to be a relation? All of the entries in any column must be of the same kind. The columns must be ordered. No two rows in a table may be identical. The cells of the table must contain a single value. All of the entries in any column must be of the same kind. The columns must be ordered. No two rows in a table may be identical. The cells of the table must contain a single value. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is NOT a basic element of all versions of the E-R model? Relationships Entities Primary keys Attributes Relationships Entities Primary keys Attributes ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Characteristic(s) of a distributed MIS structure is a multiprocessing environment interactive sharing of the workload None of these All of these computers supporting local DP operations a multiprocessing environment interactive sharing of the workload None of these All of these computers supporting local DP operations ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A computer file can be best described as an orderly collection of data items a single data item a general collection of data items a random collection of data items None of these an orderly collection of data items a single data item a general collection of data items a random collection of data items None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System After you _____ a record, many data management the environments require you to issue a command to save the changes you made. Delete Update Sort key Index Delete Update Sort key Index ANSWER DOWNLOAD EXAMIANS APP
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