A SUM using ROLLUP. : ROLLUP « Analytical Functions « Oracle PL/SQL Tutorial

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Oracle PL/SQL Tutorial » Analytical Functions » ROLLUP

16. 24. 8. A SUM using ROLLUP.


SQL>

SQL> select owner, tablespace_name, sum(bytes)/(1024*1024) total_meg

  2  from dba_extents

  3  where rownum < 50

  4  group by owner,tablespace_name

  5  /



OWNER                          TABLESPACE_NAME                 TOTAL_MEG

------------------------------ ------------------------------ ----------

SYS                            SYSTEM                                  4



SQL>

SQL>

16. 24. ROLLUP
	16. 24. 1.	Using the ROLLUP Clause
	16. 24. 2.	Passing Multiple Columns to ROLLUP
	16. 24. 3.	Changing the Position of Columns Passed to ROLLUP
	16. 24. 4.	Uses AVG() with ROLLUP
	16. 24. 5.	Using a Column Multiple Times in a GROUP BY Clause
	16. 24. 6.	The ROLLUP function was provided to conveniently give the sum on the aggregate.
	16. 24. 7.	A two-dimensional grouping with ROLLUP
	16. 24. 8.	A SUM using ROLLUP.
	16. 24. 9.	Rollup with two columns
	16. 24. 10.	Case with grouping and rollup
	16. 24. 11.	Count employees, group by ROLLUP(department no, job title)
	16. 24. 12.	group by ROLLUP(department no, job title)

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