UPPER() function

UPPER() function converts the specified string to upper-case in the column.

Syntax

upper(expr)

Arguments

Argument	Description
`expr`	Any `string` expression.

Returns

Data type	Value
`string`	`expr` converted to upper-case.

Examples

Convert strings in a column to upper-case

create table segments
    (_id id, segment string);

insert into segments(_id,segment)
    values (1,'green')

select _id, upper(segment) as convertedstr from segments;
+-----+---------------+
| _id | convertedstr  |
+-----+---------------+
|   1 | GREEN         |
+-----+---------------+