Introduction to Database System All instances of an entity class have the same attributes. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A data dictionary is a special file that contains None of these the names of all fields in all files the widths of all fields in all files All of these the data types of all fields in all files None of these the names of all fields in all files the widths of all fields in all files All of these the data types of all fields in all files ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System What is the language used by most of the DBMSs for helping their users to access data? High level language Query language 4GL SQL High level language Query language 4GL SQL ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An attribute is a(n): row of a table. key of a table. two dimensional table. column of a table. row of a table. key of a table. two dimensional table. column of a table. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System If a piece of data is stored in two places in the database, then changing the data is one spot will cause data inconsistency None of these both (a) and (b) it can be more easily accessed storage space is wasted changing the data is one spot will cause data inconsistency None of these both (a) and (b) it can be more easily accessed storage space is wasted ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System With respect to data input, the most accurate description of batch control is dividing documents to be entered into batches 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 controlling the input of each input clerk dividing documents to be entered into batches 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 controlling the input of each input clerk ANSWER DOWNLOAD EXAMIANS APP
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