Introduction to SQL The ADD command is used to enter one row of data or to add multiple rows as a result of a query. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL What operator tests column for the absence of data? NOT operator EXISTS operator None of these IS NULL operator NOT operator EXISTS operator None of these IS NULL operator ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL To remove duplicate rows from the results of an SQL SELECT statement, the ________ qualifier specified must be included. SINGLE UNIQUE ONLY DISTINCT SINGLE UNIQUE ONLY DISTINCT ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL A view is which of the following? A virtual table that cannot be accessed via SQL commands A virtual table that can be accessed via SQL commands A base table that cannot be accessed via SQL commands A base table that can be accessed via SQL commands A virtual table that cannot be accessed via SQL commands A virtual table that can be accessed via SQL commands A base table that cannot be accessed via SQL commands A base table that can be accessed via SQL commands 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
Introduction to SQL Which operator performs pattern matching? LIKE operator EXISTS operator BETWEEN operator None of these LIKE operator EXISTS operator BETWEEN operator None of these ANSWER DOWNLOAD EXAMIANS APP
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