Introduction to Database System A primary key is a composite key that was selected to be the main identifier for the relation. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An entity class is a collection of entities and is described by the structure of the entities in that class. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is not a relational database? dBASE IV FoxPro Reflex 4th Dimension dBASE IV FoxPro Reflex 4th Dimension ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Queries to a database both (a) and (b) All of these can use aggregate functions like SUM and COUNT are written in English None of these both (a) and (b) All of these can use aggregate functions like SUM and COUNT are written in English None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is a type of DBMS software? database manipulation language query language report writer utilities All of these database manipulation language query language report writer utilities All of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which command(s) is(are) used to redefine a column of the table in SQL ? all of the listed here ALTER TABLE MODIFY TABLE DEFINE TABLE all of the listed here ALTER TABLE MODIFY TABLE DEFINE TABLE ANSWER DOWNLOAD EXAMIANS APP
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