Introduction to Database System A key is a group of one or more attributes that uniquely identifies a row. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The degree of a relationship refers to the number of entity classes in the relationship. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following products was an early implementation of the relational model developed by E.F. Codd of IBM? R:base DB2 IDMS dBase-II R:base DB2 IDMS dBase-II ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A scheme describes All of these None of these record relationships data elements records and files All of these None of these record relationships data elements records and files 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? Attributes Primary keys Relationships Entities Attributes Primary keys Relationships Entities ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, which command is used to add new rows to a table? APPEND ADD ROW INSERT ALTER TABLE APPEND ADD ROW INSERT ALTER TABLE ANSWER DOWNLOAD EXAMIANS APP
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