This function is used to convert all characters of a string to the lower case.
Syntax
lower(string A) / lcase(string A)
Parameters
Parameter |
Mandatory |
Type |
Description |
|---|---|---|---|
A |
Yes |
STRING |
Text string to be converted |
Return Values
The return value is of the STRING type.
- If the value of the input parameter is not of the STRING, BIGINT, DOUBLE, DECIMAL, or DATETIME type, an error is reported.
- If the value of the input parameter is NULL, NULL is returned.
Example Code
Converts uppercase characters in a string to the lower case. An example command is as follows:
The value abc is returned.
select lower('ABC');
The value of the input parameter is NULL. An example command is as follows:
The value NULL is returned.
select lower(null);