Introduction to Database System SQL stands for ________ . Structured Query Language Sequential Question Language Sequential Query Language Structured Question Language Structured Query Language Sequential Question Language Sequential Query Language Structured Question Language ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In any hierarchy of data organization, the smallest entity to be processed as a single unit is called data file data field database data record None of these data file data field database data record None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A key: must always be composed of two or more columns. identifies a column. can only be one column. identifies a row. must always be composed of two or more columns. identifies a column. can only be one column. identifies a row. ANSWER DOWNLOAD EXAMIANS APP
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 In which of the following is a single-entity instance of one type of related to a single-entity instance of another type? One-to-One Relationship Many-to-Many Relationship One-to-Many Relationship Composite Relationship One-to-One Relationship Many-to-Many Relationship One-to-Many Relationship Composite Relationship ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System For some relations, changing the data can have undesirable consequences called: transitive dependencies. modification anomalies. referential integrity constraints. normal forms. transitive dependencies. modification anomalies. referential integrity constraints. normal forms. ANSWER DOWNLOAD EXAMIANS APP
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