# **LCASE()**

## **Function Description**

`LCASE()` is used to convert the given string to lowercase, synonyms for [`LOWER()`](lower.md).

## **Function Syntax**

```text
> LCASE(str)
```

## **Parameter definition**

| Parameters | Description |
| ---- | ---- |
| str | Required parameters, alphabetical characters. |

## **Example**

```text
mysql> select lcase('HELLO');
+-------------------+
| lcase(HELLO) |
+-------------------+
| hello |
+-------------------+
1 row in set (0.02 sec)

mysql> select lcase('A'),lcase('B'),lcase('C');
+------------------------------------+
| lcase(A) | lcaseer(B) | lcase(C) |
+------------------------------------+
| a | b | c |
+------------------------------------+
1 row in set (0.03 sec)
```