Introduction to SQL The SELECT command, with its various clauses, allows users to query the data contained in the tables and ask many different questions or ad hoc queries. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which of the following group functions ignore NULL values? SUM COUNT All of these MAX SUM COUNT All of these MAX ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Indexes can usually be created for both primary and secondary keys. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL The SQL statement that queries or reads data from a table is ________ . QUERY READ None of these SELECT QUERY READ None of these SELECT ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL COUNT(field_name) tallies only those rows that contain a value; it ignores all null values. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which of the following is a valid SQL type? FLOAT CHARACTER All of these NUMERIC FLOAT CHARACTER All of these NUMERIC ANSWER DOWNLOAD EXAMIANS APP
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