In MariaDB, CHARSET() is a secondary built in function that returns the character set of a given string.
We provide the string when we call the function.
Syntax
The syntax goes like this:
CHARSET(str)Where str is the string.
Example
Here’s a simple example:
SELECT CHARSET('Toast');Result:
+------------------+
| CHARSET('Toast') |
+------------------+
| utf8 |
+------------------+
And here it is again after we convert the same string to utf16:
SELECT CHARSET(CONVERT('Toast' USING utf16));Result:
+---------------------------------------+
| CHARSET(CONVERT('Toast' USING utf16)) |
+---------------------------------------+
| utf16 |
+---------------------------------------+
And here’s another example that uses Thai characters:
SELECT CHARSET(_tis620'ไม้เมือง');Result:
+--------------------------------------------+ | CHARSET(_tis620'ไม้เมือง') | +--------------------------------------------+ | tis620 | +--------------------------------------------+
Wrong Argument Type
Passing an argument that is not a string results in the word binary being returned.
SELECT CHARSET(123);Result:
+--------------+ | CHARSET(123) | +--------------+ | binary | +--------------+
Null Arguments
Passing null results in the word binary being returned.
SELECT CHARSET(null);Result:
+---------------+ | CHARSET(null) | +---------------+ | binary | +---------------+
Missing Argument
Calling CHARSET() without passing an argument results in an error:
SELECT CHARSET();Result:
ERROR 1064 (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