Difference between revisions of "Values and Subtotals"

Latest revision as of 15:10, 2 August 2012

Get values and Subtotals in one shot.

In this example you are shown how to obtain subtotals in your query, allowing you to easily see SUM results for different elements.

Table 1 shows the result without the subtotals and Table 2 shows the result with subtotals.

Table 1
item	serialnumber	price
Awl	1	10
Awl	3	10
Bowl	2	10
Bowl	5	10
Bowl	6	10
Cowl	4	10

Table 2
item	serialnumber	price
Awl	1	10
Awl	3	10
Awl		20
Bowl	2	10
Bowl	5	10
Bowl	6	10
Bowl		30
Cowl	4	10
Cowl		10

schema:scott

DROP TABLE serial

 CREATE TABLE serial(
  item VARCHAR(20),
  serialnumber INTEGER,
  price INTEGER );
INSERT INTO serial VALUES ('Awl',1,10);
INSERT INTO serial VALUES ('Awl',3,10);
INSERT INTO serial VALUES ('Bowl',2,10);
INSERT INTO serial VALUES ('Bowl',5,10);
INSERT INTO serial VALUES ('Bowl',6,10);
INSERT INTO serial VALUES ('Cowl',4,10);

In this example a UNION is used to make the query show the subtotal results along with the price results and to ensure the subtotals come after the price a COALESCE function is also used.

SELECT item, serialnumber, price 
  FROM(SELECT item, serialnumber, price 
         FROM serial
         UNION
         SELECT item, NULL, SUM(price)
           FROM serial
           GROUP BY item ) t
           ORDER BY item, 
           COALESCE(serialnumber,1E9)

Grand total can also be obtained through ROLLUPS:

SELECT item, serialnumber, SUM(price)
   FROM serial
   GROUP BY item, serialnumber WITH ROLLUP

Grand total can also be obtained through ROLLUPS:

SELECT item, serialnumber, SUM(price)
   FROM serial
   GROUP BY item, serialnumber WITH ROLLUP

Grand total can be obtained through GROUPING SETS:

SELECT item, serialnumber, SUM(price)
   FROM serial
   GROUP BY GROUPING SETS ((item,serialnumber),(item),())

@@ Line 54: / Line 54: @@
             FROM serial
             GROUP BY item ) t
-            ORDER BY item, COALESCE(serialnumber,1E9)</source>
+            ORDER BY item,
+           COALESCE(serialnumber,1E9)</source>
 <div class="ecomm e-mysql" style="display: none">Grand total can also be obtained through <code>ROLLUPS</code>:
-SELECT item, serialnumber, SUM(price)
+<pre>SELECT item, serialnumber, SUM(price)
-  FROM serial
+   FROM serial
-  GROUP BY item, serialnumber WITH ROLLUP</div>
+   GROUP BY item, serialnumber WITH ROLLUP</pre></div>
 <div class="ecomm e-sqlserver" style="display: none">Grand total can also be obtained through <code>ROLLUPS</code>:
-SELECT item, serialnumber, SUM(price)
+<pre>SELECT item, serialnumber, SUM(price)
-  FROM serial
+   FROM serial
-  GROUP BY item, serialnumber WITH ROLLUP</div>
+   GROUP BY item, serialnumber WITH ROLLUP</pre></div>
 <div class="ecomm e-oracle" style="display: none">Grand total can be obtained through <code>GROUPING SETS</code>:
-SELECT item, serialnumber, SUM(price)
+<pre>SELECT item, serialnumber, SUM(price)
-  FROM serial
+   FROM serial
-  GROUP BY GROUPING SETS ((item,serialnumber),(item),())</div>
+   GROUP BY GROUPING SETS ((item,serialnumber),(item),())</pre></div>
 <div class="ecomm e-db2" style="display: none">Both oracle and MySQL methods work for DB2</div>
 </div>
 {{Hacks Ref}}

Difference between revisions of "Values and Subtotals"

Latest revision as of 15:10, 2 August 2012

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