Introduction to SQL Each index consumes extra storage space and also requires overhead maintenance time whenever indexed data change value. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Find the temperature in increasing order of all cities SELECT city FROM weather ORDER BY temperature; SELECT city, temperature FROM weather; SELECT city, temperature FROM weather ORDER BY temperature; SELECT city, temperature FROM weather ORDER BY city; SELECT city FROM weather ORDER BY temperature; SELECT city, temperature FROM weather; SELECT city, temperature FROM weather ORDER BY temperature; SELECT city, temperature FROM weather ORDER BY city; ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL The SQL statement: SELECT Name, COUNT(*) FROM NAME_TABLE; counts the number of name rows and displays this total in a table with a single row and a single column. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL ORDER BY can be combined with the SELECT statements. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which of the following query is correct for using comparison operators in SQL? SELECT name, course_name FROM student WHERE age>50 and WHERE age<80; SELECT name, course_name FROM student WHERE age>50 and <80; SELECT name, course_name FROM student WHERE age>50 and age <80; None of these SELECT name, course_name FROM student WHERE age>50 and WHERE age<80; SELECT name, course_name FROM student WHERE age>50 and <80; SELECT name, course_name FROM student WHERE age>50 and age <80; None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL The SQL statementSELECT SUBSTR('abcdefghij', INSTR('123321234', '2', 3, 2), 2) FROM DUAL;prints bc ab 23 gh bc ab 23 gh ANSWER DOWNLOAD EXAMIANS APP
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