> ## Documentation Index
> Fetch the complete documentation index at: https://docs.dune.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Teradata functions

These functions provide compatibility with Teradata SQL.

## String functions

#### char2()

**`char2hexint(string)`** → varchar

Returns the hexadecimal representation of the UTF-16BE encoding of the string.

#### index()

**`index(string, substring)`** → bigint

Alias for `strpos` function.

## Date functions

The functions in this section use a format string that is compatible
with the Teradata datetime functions. The following table, based on the
Teradata reference manual, describes the supported format specifiers:

| Specifier   | Description                        |
| ----------- | ---------------------------------- |
| - / , . ; : | Punctuation characters are ignored |
| dd          | Day of month (1-31)                |
| hh          | Hour of day (1-12)                 |
| hh24        | Hour of the day (0-23)             |
| mi          | Minute (0-59)                      |
| mm          | Month (01-12)                      |
| ss          | Second (0-59)                      |
| yyyy        | 4-digit year                       |
| yy          | 2-digit year                       |

<tip>  Case insensitivity is not currently supported. All specifiers must be lowercase. </tip>

#### to\_char()

**`to_char(timestamp, format)`** → varchar

Formats `timestamp` as a string using `format`.

#### to\_timestamp()

**`to_timestamp(string, format)`** → timestamp

Parses `string` into a `TIMESTAMP` using `format`.

#### to\_date()

**`to_date(string, format)`** → date

Parses `string` into a `DATE` using `format`.