Introduction to SQL The SQL -92 wildcards are ____ and ____ . asterisk (*); percent sign (%) percent sign (%); underscore (_) question mark (?); asterisk (*) underscore(_); question mark (?) asterisk (*); percent sign (%) percent sign (%); underscore (_) question mark (?); asterisk (*) underscore(_); question mark (?) ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL What is the meaning of LIKE '%0%0%' Feature begins with two 0's Feature has more than two 0's Feature ends with two 0's Feature has two 0's in it, at any position Feature begins with two 0's Feature has more than two 0's Feature ends with two 0's Feature has two 0's in it, at any position ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Let the statementSELECT column1 FROM myTable;return 10 rows. The statementSELECT ALL column1 FROM myTable;will return None of these exactly 10 rows less than 10 rows more than 10 rows None of these exactly 10 rows less than 10 rows more than 10 rows ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL What operator tests column for the absence of data? EXISTS operator NOT operator IS NULL operator None of these EXISTS operator NOT operator IS NULL operator None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL To establish a range of values, < and > can be used. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Each index consumes extra storage space and also requires overhead maintenance time whenever indexed data change value. False True False True ANSWER DOWNLOAD EXAMIANS APP
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