Introduction to SQL SELECT DISTINCT is used if a user wishes to see duplicate columns in a query. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL What is a view? A view is a database diagram. A view is a virtual table which results of executing a pre-compiled query. A view is not part of the physical database schema, while the regular tables are. A view is a special stored procedure executed when certain event occurs. None of these A view is a database diagram. A view is a virtual table which results of executing a pre-compiled query. A view is not part of the physical database schema, while the regular tables are. A view is a special stored procedure executed when certain event occurs. None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Find the name of those cities with temperature and condition whose condition is either sunny or cloudy but temperature must be greater than 70oF. SELECT city, temperature, condition FROM weather WHERE condition = 'sunny' OR condition = 'cloudy' AND temperature > 70; SELECT city, temperature, condition FROM weather WHERE condition = 'sunny' OR condition = 'cloudy' OR temperature > 70; SELECT city, temperature, condition FROM weather WHERE condition = 'sunny' AND condition = 'cloudy' AND temperature > 70; SELECT city, temperature, condition FROM weather WHERE condition = 'sunny' AND condition = 'cloudy' OR temperature > 70; SELECT city, temperature, condition FROM weather WHERE condition = 'sunny' OR condition = 'cloudy' AND temperature > 70; SELECT city, temperature, condition FROM weather WHERE condition = 'sunny' OR condition = 'cloudy' OR temperature > 70; SELECT city, temperature, condition FROM weather WHERE condition = 'sunny' AND condition = 'cloudy' AND temperature > 70; SELECT city, temperature, condition FROM weather WHERE condition = 'sunny' AND condition = 'cloudy' OR temperature > 70; ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL The SQL -92 wildcards are ____ and ____ . underscore(_); question mark (?) question mark (?); asterisk (*) asterisk (*); percent sign (%) percent sign (%); underscore (_) underscore(_); question mark (?) question mark (?); asterisk (*) asterisk (*); percent sign (%) percent sign (%); underscore (_) ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL If a query involves NOT, AND, OR with no parenthesis AND will be evaluated first; OR will be evaluated second; NOT will be evaluated last. The order of occurrence determines the order of evaluation. NOT will be evaluated first; AND will be evaluated second; OR will be evaluated last. NOT will be evaluated first; OR will be evaluated second; AND will be evaluated last. AND will be evaluated first; OR will be evaluated second; NOT will be evaluated last. The order of occurrence determines the order of evaluation. NOT will be evaluated first; AND will be evaluated second; OR will be evaluated last. NOT will be evaluated first; OR will be evaluated second; AND will be evaluated last. ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL The FROM SQL clause is used to... specify range for search condition specify what table we are selecting or deleting data FROM None of these specify search condition specify range for search condition specify what table we are selecting or deleting data FROM None of these specify search condition ANSWER DOWNLOAD EXAMIANS APP
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