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In Hive, what is the significance of the WHERE clause in a SELECT statement? Table employee has 10 records. It has a non-NULL SALARY column which is also UNIQUE. The SQL statement SELECT COUNT(*) FROM employee WHERE SALARY > ALL (SELECT SALARY FROM EMPLOYEE); prints What is the output of the expression: "hello" + "world" in Ruby? What does semantic markup not define? What will the code display on compiling? void funccall() { printf("this is funccall\n"); } void main () { atexit(funccall); printf("program starts\n"); printf("program ends\n"); }