Converts a radian value into a degree.
Syntax
double degrees(<number>) Parameters
number: required. The value is of the DOUBLE, BIGINT, INT, SMALLINT, TINYINT, FLOAT, DECIMAL, or STRING type. This function is an additional function of MaxCompute V2.0.
Return value
A value of the DOUBLE type is returned. If the value of number is null, null is returned.
Sample data
This section provides sample source data and examples for you to understand how to use the functions. In this topic, a table named mf_math_fun_t is created and data is inserted into the table. Sample statements:
create table if not exists mf_math_fun_t(
int_data int,
bigint_data bigint,
double_data double,
decimal_data decimal,
float_data float,
string_data string
);
insert into mf_math_fun_t values
(null, -10, 0.525, 0.525BD, cast(0.525 as float), '10'),
(-20, null, -0.1, -0.1BD, cast(-0.1 as float), '-10'),
(0, -1, null, 20.45BD, cast(-1 as float), '30'),
(-40, 4, 0.89, null, cast(0.89 as float), '-30'),
(5, -50, -1, -1BD, null, '50'),
(-60, 6, 1.5, 1.5BD, cast(1.5 as float), '-50'),
(-1, -70, -7.5, -7.5BD, cast(-7.5 as float),null ),
(-80, 1, -10.2, -10.2BD, cast(-10.2 as float), '-1' ),
(9, -90, 2.58, 2.58BD, cast(2.58 as float), '0'),
(-100, 10, -5.8, -5.8BD, cast(-5.8 as float), '-90');Query data from the mf_math_fun_t table. Sample statement:
select * from mf_math_fun_t;
-- The following result is returned:
+------------+-------------+-------------+--------------+------------+-------------+
| int_data | bigint_data | double_data | decimal_data | float_data | string_data |
+------------+-------------+-------------+--------------+------------+-------------+
| NULL | -10 | 0.525 | 0.525 | 0.525 | 10 |
| -20 | NULL | -0.1 | -0.1 | -0.1 | -10 |
| 0 | -1 | NULL | 20.45 | -1.0 | 30 |
| -40 | 4 | 0.89 | NULL | 0.89 | -30 |
| 5 | -50 | -1.0 | -1 | NULL | 50 |
| -60 | 6 | 1.5 | 1.5 | 1.5 | -50 |
| -1 | -70 | -7.5 | -7.5 | -7.5 | NULL |
| -80 | 1 | -10.2 | -10.2 | -10.2 | -1 |
| 9 | -90 | 2.58 | 2.58 | 2.58 | 0 |
| -100 | 10 | -5.8 | -5.8 | -5.8 | -90 |
+------------+-------------+-------------+--------------+------------+-------------+Example: static data
-- The return value is 90.0.
select degrees(1.5707963267948966);
-- The return value is 0.0.
select degrees(0);
-- The return value is null.
select degrees(null);Example: table data
Obtain all degrees that correspond to all columns based on the Sample data. Sample statement:
-- Enable the MaxCompute V2.0 data type edition. Commit this command along with SQL statements.
set odps.sql.type.system.odps2=true;
select degrees(int_data) as int_new, degrees(bigint_data) as bigint_new, degrees(double_data) as double_new, degrees(decimal_data) as decimal_new, degrees(float_data) as float_new, degrees(string_data) as string_new from mf_math_fun_t;The following result is returned:
+---------------------+---------------------+---------------------+---------------------+---------------------+---------------------+
| int_new | bigint_new | double_new | decimal_new | float_new | string_new |
+---------------------+---------------------+---------------------+---------------------+---------------------+---------------------+
| NULL | -572.9577951308232 | 30.08028424436822 | 30.08028424436822 | 30.080282878330387 | 572.9577951308232 |
| -1145.9155902616465 | NULL | -5.729577951308232 | -5.729577951308232 | -5.729578036685597 | -572.9577951308232 |
| 0.0 | -57.29577951308232 | NULL | 1171.6986910425335 | -57.29577951308232 | 1718.8733853924698 |
| -2291.831180523293 | 229.1831180523293 | 50.99324376664326 | NULL | 50.99324294702057 | -1718.8733853924698 |
| 286.4788975654116 | -2864.7889756541163 | -57.29577951308232 | -57.29577951308232 | NULL | 2864.7889756541163 |
| -3437.7467707849396 | 343.77467707849394 | 85.94366926962348 | 85.94366926962348 | 85.94366926962348 | -2864.7889756541163 |
| -57.29577951308232 | -4010.7045659157625 | -429.71834634811745 | -429.71834634811745 | -429.71834634811745 | NULL |
| -4583.662361046586 | 57.29577951308232 | -584.4169510334397 | -584.4169510334397 | -584.416940105137 | -57.29577951308232 |
| 515.662015617741 | -5156.620156177409 | 147.8231111437524 | 147.8231111437524 | 147.82310677243132 | 0.0 |
| -5729.5779513082325 | 572.9577951308232 | -332.31552117587745 | -332.31552117587745 | -332.31553210418014 | -5156.620156177409 |
+---------------------+---------------------+---------------------+---------------------+---------------------+---------------------+Related functions
DEGREES is a mathematical function. For more information about functions related to data computing and conversion, see Mathematical functions.