Introduction to SQL There is an equivalent join expression that can be substituted for all subquery expressions. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Table employee has 10 records. It has a non-NULL SALARY column which is also UNIQUE.The SQL statementSELECT COUNT(*) FROM employee WHERE SALARY > ALL (SELECT SALARY FROM EMPLOYEE);prints 5 0 10 9 5 0 10 9 ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which operator performs pattern matching? EXISTS operator LIKE operator None of these BETWEEN operator EXISTS operator LIKE operator None of these BETWEEN operator ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which of the following is a SQL aggregate function? AVG LEN LEFT JOIN AVG LEN LEFT JOIN ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL The SQL statementSELECT SUBSTR('123456789', INSTR('abcabcabc', 'b'), 4) FROM DUAL; 2345 456789 1234 6789 2345 456789 1234 6789 ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL The SQL WHERE clause: limits the column data that are returned. Neither A nor B are correct. limits the row data are returned. Both A and B are correct. limits the column data that are returned. Neither A nor B are correct. limits the row data are returned. Both A and B are correct. ANSWER DOWNLOAD EXAMIANS APP
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