Introduction to Database System An audit trail is used to make back-up copies All of the listed here is the recorded history of operations performed on a file can be used to restore lost information is used to make back-up copies All of the listed here is the recorded history of operations performed on a file can be used to restore lost information ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System You have run an SQL statement that asked the DBMS to display data in a table named USER_TABLES. The results include columns of data labeled "TableName," "NumberOfColumns" and "PrimaryKey." You are looking at ________ . user data A report metadata indexes user data A report metadata indexes ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A key: identifies a row. identifies a column. can only be one column. must always be composed of two or more columns. identifies a row. identifies a column. can only be one column. must always be composed of two or more columns. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Sort/report generators are faster than index/report generators require more disk space than index/report generators do not need to sort before generating a report none of the listed here are faster than index/report generators require more disk space than index/report generators do not need to sort before generating a report none of the listed here 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 dBase-II DB2 IDMS R:base dBase-II DB2 IDMS ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Entities can be associated with one another in which of the following? Attributes Relationships Identifiers Entities Attributes Relationships Identifiers Entities ANSWER DOWNLOAD EXAMIANS APP
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