Introduction to Database System Two files may be joined into a third file if both (b) and (c) None of these they have a row in common they have a field in common they have no records with the same value in the common field both (b) and (c) None of these they have a row in common they have a field in common they have no records with the same value in the common field ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Entities use identifiers while tables use keys. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which command is used to select distinct subject (SUB) from the table (BOOK)? SELECT SUB FROM BOOK SELECT ALL FROM BOOK All of these None of these SELECT DISTINCT SUB FROM BOOK SELECT SUB FROM BOOK SELECT ALL FROM BOOK All of these None of these SELECT DISTINCT SUB FROM BOOK ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A functional dependency is a relationship between or among attributes. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, the CREATE TABLESPACE is used to add/rename data files, to change storage None of these All of these to create a database trigger to create a place in the database for storage of scheme objects, rollback segments, and naming the data files to comprise the tablespace to add/rename data files, to change storage None of these All of these to create a database trigger to create a place in the database for storage of scheme objects, rollback segments, and naming the data files to comprise the tablespace ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System For some relations, changing the data can have undesirable consequences called: transitive dependencies. normal forms. modification anomalies. referential integrity constraints. transitive dependencies. normal forms. modification anomalies. referential integrity constraints. ANSWER DOWNLOAD EXAMIANS APP
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