SET sql_mode=ORACLE;
SELECT DECODE(10);
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near ')' at line 1
SELECT DECODE(10,10);
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near ')' at line 1
SELECT DECODE(10,10,'x10');
DECODE(10,10,'x10')
x10
SELECT DECODE(11,10,'x10');
DECODE(11,10,'x10')
NULL
SELECT DECODE(10,10,'x10','def');
DECODE(10,10,'x10','def')
x10
SELECT DECODE(11,10,'x10','def');
DECODE(11,10,'x10','def')
def
SELECT DECODE(10,10,'x10',11,'x11','def');
DECODE(10,10,'x10',11,'x11','def')
x10
SELECT DECODE(11,10,'x10',11,'x11','def');
DECODE(11,10,'x10',11,'x11','def')
x11
SELECT DECODE(12,10,'x10',11,'x11','def');
DECODE(12,10,'x10',11,'x11','def')
def
EXPLAIN EXTENDED SELECT DECODE(12,10,'x10',11,'x11','def');
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
Warnings:
Note	1003	select case 12 when 10 then 'x10' when 11 then 'x11' else 'def' end AS "DECODE(12,10,'x10',11,'x11','def')"
CREATE TABLE decode (decode int);
DROP TABLE decode;