Introduction to Database System Data encryption techniques are particularly useful for None of these improving data integrity All of these reducing storage space requirements protecting data in data communication systems None of these improving data integrity All of these reducing storage space requirements protecting data in data communication systems ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A candidate key is a determinant that determines all the other columns is a relation. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The purpose of a database is to help people stop using spreadsheets. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A good query system can be accessed only by data processing professionals None of these both (a) and (b) allows non-programmers to access information stored in a database can accept English language commands can be accessed only by data processing professionals None of these both (a) and (b) allows non-programmers to access information stored in a database can accept English language commands 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? Relationships Primary keys Attributes Entities Relationships Primary keys Attributes Entities ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System One solution to the multivalued dependency constraint problem is to: split the relation into two relations, each with a single theme. change the theme. create a new theme. add a composite key. split the relation into two relations, each with a single theme. change the theme. create a new theme. add a composite key. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS