Introduction to Database System A key: identifies a row. must always be composed of two or more columns. can only be one column. identifies a column. identifies a row. must always be composed of two or more columns. can only be one column. identifies a column. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Periodically adding, changing and deleting file records is called file upgrading Updating renewing restructuring upgrading Updating renewing restructuring ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A minimum cardinality is the minimum number of entity instances that may participate in a relationship instance. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In a relational schema, each tuple is divided into fields called Queries All of the listed here Domains Relations Queries All of the listed here Domains Relations ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The model for a record management system might be handwritten list a Rolodex card file None of these All of these a business form handwritten list a Rolodex card file None of these All of these a business form ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In a database, data is stored in spreadsheets which have rows and columns. False True False True ANSWER DOWNLOAD EXAMIANS APP
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