15.20. Teradata Functions

These functions provide compatibility with Teradata SQL.

String Functions

char2hexint(string) → varchar: Returns the hexadecimal representation of the UTF-16BE encoding of the string.

index(string, substring) → bigint: Alias for strpos() function.

substring(string, start) → varchar: Alias for substr() function.

substring(string, start, length) → varchar: Alias for substr() 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

Warning

Case insensitivity is not currently supported. All specifiers must be lowercase.

to_char(timestamp, format) → varchar: Formats timestamp as a string using format.

to_timestamp(string, format) → timestamp: Parses string into a TIMESTAMP using format.

to_date(string, format) → date: Parses string into a DATE using format.