Introduction to SQL Which SQL statement is used to delete data FROM a database? COLLAPSE REMOVE ALTER DELETE COLLAPSE REMOVE ALTER DELETE ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL The qualifier DISTINCT must be used in an SQL statement when we want to eliminate duplicate rows. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL The wildcard asterisk (*) is the SQL-92 standard for indicating "any sequence of characters." True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Each index consumes extra storage space and also requires overhead maintenance time whenever indexed data change value. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL What operator tests column for the absence of data? None of these IS NULL operator EXISTS operator NOT operator None of these IS NULL operator EXISTS operator NOT operator ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which SQL statement is used to update data in a database? UPDATE MODIFY SAVE AS SAVE UPDATE MODIFY SAVE AS SAVE ANSWER DOWNLOAD EXAMIANS APP
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