Introduction to Database System Which of the following is not a restriction for a table to be a relation? The columns must be ordered. The cells of the table must contain a single value. No two rows in a table may be identical. All of the entries in any column must be of the same kind. The columns must be ordered. The cells of the table must contain a single value. No two rows in a table may be identical. All of the entries in any column must be of the same kind. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The files stored on a secondary stage device are composed of a hierarchy of data. What does a record in a file contain? None of the listed here Bits Characters Data field None of the listed here Bits Characters Data field ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In a relational schema, each tuple is divided into fields called Relations Domains All of the listed here Queries Relations Domains All of the listed here Queries 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 ________ . indexes A report user data metadata indexes A report user data metadata ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An ID-dependent entity is an entity whose identifier is a composite identifier where no portion of the composite identifier is an identifier of another entity. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following contains a complete record of all activity that affected the contents of a database during a certain period of time? transaction log data manipulation language report writer query language None of these transaction log data manipulation language report writer query language None of these ANSWER DOWNLOAD EXAMIANS APP
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