MySQL UPPER Function: Convert Letters To Uppercase

The UPPER() function in MySQL is used to convert all characters in a text string to uppercase.

Syntax:

Here is the syntax for the UPPER() function:

UPPER(string)

Where:

string: This is the string of characters you want to convert to uppercase.

Examples:

Using UPPER with a string:

SELECT UPPER('Hello World');

This will output 'HELLO WORLD', as all the characters are converted to uppercase.

Using UPPER with a column name:

SELECT UPPER(column_name) FROM table_name;

Replace column_name with the name of your column and table_name with the name of your table. This will convert all the values in the specified column to uppercase.

Note:

If the string argument is NULL, the UPPER() function will return NULL.
The UPPER() function is multibyte safe, which means it can be used with strings that are encoded in multibyte character sets, like UTF-8.
To convert a string to lowercase, you can use the LOWER() function.
This function does not change any characters in the string that are not letters. Non-alphabet characters, such as digits, symbols, or whitespace, remain the same.

Converting letters to uppercase with MySQL UPPER:
- The UPPER function in MySQL is used to convert letters in a string to uppercase.
```
-- Convert a string to uppercase
SELECT UPPER('hello, world');
```
Using UPPER function in MySQL for uppercase conversion:
- Utilize the UPPER function in MySQL to transform text to uppercase, ensuring consistent letter casing.
```
-- Convert a column to uppercase in a table
SELECT UPPER(your_column) FROM your_table;
```
MySQL UPPER function example:
- An example illustrating the usage of the UPPER function to convert a string to uppercase.
```
-- Example of using UPPER in MySQL
SELECT UPPER('convert me') AS uppercase_text;
```
How to change letters to uppercase in MySQL:
- Change letters to uppercase in MySQL using the UPPER function, ensuring uniform casing.
```
-- Change letters to uppercase in a column
SELECT UPPER('change me') AS uppercase_text;
```
String manipulation in MySQL: UPPER usage:
- Incorporate the UPPER function in MySQL as part of string manipulation tasks to enforce uppercase formatting.
```
-- Manipulate strings and convert to uppercase
SELECT UPPER('manipulate me') AS manipulated_text;
```
MySQL uppercase conversion with UPPER function:
- Use the UPPER function in MySQL for uppercase conversion, transforming text to uppercase.
```
-- Convert a column to uppercase in a table
SELECT UPPER(your_text_column) FROM your_table;
```
Converting text to uppercase in MySQL using UPPER:
- Employ the UPPER function in MySQL to convert text to uppercase, facilitating case-insensitive comparisons.
```
-- Convert text to uppercase for comparison
SELECT UPPER('case insensitive') AS uppercase_text;
```
Uppercase transformation with UPPER in MySQL:
- Transform text to uppercase in MySQL using the UPPER function for consistent and standardized representations.
```
-- Transform text to uppercase
SELECT UPPER('transform me') AS transformed_text;
```