Difference between revisions of "COS"
From SQLZOO
| Line 17: | Line 17: | ||
<div class=params>schema:scott</div> | <div class=params>schema:scott</div> | ||
| − | <source lang=sql class='tidy'> | + | <source lang=sql class='tidy'> DROP TABLE angle</source> |
| − | <source lang=sql class='setup'> | + | <source lang=sql class='setup'> CREATE TABLE angle( |
type VARCHAR(10), | type VARCHAR(10), | ||
angle INTEGER | angle INTEGER | ||
| Line 41: | Line 41: | ||
In this example you return the cosine of each of the angles. | In this example you return the cosine of each of the angles. | ||
<source lang='sql' class='def'> | <source lang='sql' class='def'> | ||
| − | SELECT id | + | SELECT id |
| − | + | FROM angle | |
| − | + | WHERE type = 'COS' | |
</source> | </source> | ||
</div> | </div> | ||
Revision as of 09:20, 16 July 2012
| COS(a) | ||
|---|---|---|
| Engine | OK | Alternative |
| ingres | Yes | |
| mysql | Yes | |
| oracle | Yes | |
| postgres | Yes | |
| sqlserver | Yes | |
COS
COS(f) returns the cosine of f where f is in radians.
COS(3.14159/3) -> 0.5
schema:scott
DROP TABLE angle
CREATE TABLE angle( TYPE VARCHAR(10), angle INTEGER id INTEGER INSERT INTO angle VALUES (COS,0,1); INSERT INTO angle VALUES (COS,45,1.732051/2); INSERT INTO angle VALUES (COS,45,1/1.41421); INSERT INTO angle VALUES (COS,60,1/2); INSERT INTO angle VALUES (COS,90,NULL); INSERT INTO angle VALUES (SIN,0,0); INSERT INTO angle VALUES (SIN,30,1/2); INSERT INTO angle VALUES (SIN,45,1/1.41421); INSERT INTO angle VALUES (SIN,60,1.732051/2); INSERT INTO angle VALUES (SIN,90,1); INSERT INTO angle VALUES (TAN,0,0); INSERT INTO angle VALUES (TAN,30,1/1.732051); INSERT INTO angle VALUES (TAN,45,1); INSERT INTO angle VALUES (TAN,60,1.732051); INSERT INTO angle VALUES (TAN,90,1/0);
In this example you return the cosine of each of the angles.
SELECT id FROM angle WHERE TYPE = 'COS'
See also
