sparksql

Requirement In this post, we will learn how to select a specific column value or all the columns in Spark DataFrame with different approaches. Sample Data empno ename designation manager hire_date sal deptno location 9369 SMITH CLERK 7902 12/17/1980 800 20 BANGALORE 9499 ALLEN SALESMAN 7698 2/20/1981 1600 30 HYDERABADRead More →