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Showing posts with the label odi analytic functions

Analytic Functions

You can get any part of data and any sorted order you want with Analytic functions. Its syntax is OVER ((PARTITION BY … ORDER BY …)). Here is some samples with analytic functions I have used. First sample is getting number of (COUNT) employees by departments and ordered by (ROW_NUMBER ) departments. select     A. DEPTNO ,  row_number  ()   over   (partition   by   A. DEPTNO  order   by   A. EMPNO )  DEPT_EMP_ROWNO ,   A. EMPNO ,  row_number  ()   over   (order   by   A. DEPTNO ,   A. EMPNO )  EMP_ROWNO ,   count   (  *  )   over   (partition   by   A. DEPTNO )  DEPT_TOTAL_EMP_CNT ,   count   (  *  )   over   ()  TOTAL_EMP_CNT ,   count   (distinct   A. DEPTNO )   over   ()  TOTAL_DEPT_CNT from    SCOTT . EMP  A order   by ...