Introduction to SQL Most companies keep at least two versions of any database they are using. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL The SQL keyword BETWEEN is used: to limit the columns displayed. None of these as a wildcard. for ranges. to limit the columns displayed. None of these as a wildcard. for ranges. ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL The SQL statementSELECT SUBSTR('abcdefghij', INSTR('123321234', '2', 3, 2), 2) FROM DUAL;prints ab gh 23 bc ab gh 23 bc ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL If you are going to use a combination of three or more AND and OR conditions, it is often easier to use the NOT and NOT IN operators. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which of the following join is also called as an 'inner-join'? Self-Join None of these Non-Equijoin Equijoin Self-Join None of these Non-Equijoin Equijoin 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
EXAMIANS