Introduction to SQL What operator tests column for the absence of data? IS NULL operator NOT operator None of these EXISTS operator IS NULL operator NOT operator None of these EXISTS operator ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which of the following must be enclosed in double quotes? Dates Strings All of these Column Alias Dates Strings All of these Column Alias ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL The SQL statementSELECT ROUND(45.926, -1) FROM DUAL; prints 045.926 prints 50 is illegal prints garbage prints 045.926 prints 50 is illegal prints garbage ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which one of the following sorts rows in SQL? GROUP BY ORDER BY ALIGN BY SORT BY GROUP BY ORDER BY ALIGN BY SORT BY ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL A SELECT statement within another SELECT statement and enclosed in square brackets ([...]) is called a subquery. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL SQL query and modification commands make up a(n) ________ . XML HTML DDL DML XML HTML DDL DML ANSWER DOWNLOAD EXAMIANS APP
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