Introduction to Database System In SQL, which command is used to changes data in a table? BROWSE INSERT UPDATE APPEND BROWSE INSERT UPDATE APPEND ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The files stored on a secondary stage device are composed of a hierarchy of data. What does a record in a file contain? Data field None of the listed here Characters Bits Data field None of the listed here Characters Bits ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is not a restriction for a table to be a relation? The columns must be ordered. The cells of the table must contain a single value. All of the entries in any column must be of the same kind. No two rows in a table may be identical. The columns must be ordered. The cells of the table must contain a single value. All of the entries in any column must be of the same kind. No two rows in a table may be identical. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In order to use a record management system You need to understand the low-level details of how information in stored You need to understand the model the record management system uses. None of these Both (a) and (b) All of these You need to understand the low-level details of how information in stored You need to understand the model the record management system uses. None of these Both (a) and (b) All of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System With respect to data input, the most accurate description of batch control is controlling the input of each input clerk All of these None of these comparing to a pre-calculated figure the total of a data item summed across a batch records put into the system dividing documents to be entered into batches controlling the input of each input clerk All of these None of these comparing to a pre-calculated figure the total of a data item summed across a batch records put into the system dividing documents to be entered into batches ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An audit trail can be used to restore lost information is the recorded history of operations performed on a file is used to make back-up copies All of the listed here can be used to restore lost information is the recorded history of operations performed on a file is used to make back-up copies All of the listed here ANSWER DOWNLOAD EXAMIANS APP
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