teradataml DataFrameColumn supports following set of string functions.
See the String Functions section of Teradata Package for Python Function Reference, B700-4008) at https://docs.teradata.com/ for detailed description and usage examples of these functions.
| Sr. No. | Function Name | Description |
|---|---|---|
| 1 | concat() | Function to concatenate the columns with a separator. |
| 2 | like() | Function to match the string pattern. String match is case sensitive. |
| 3 | ilike() | Function to match the string pattern. String match is not case sensitive. |
| 4 | substr() | Returns the substring from a string column. |
| 5 | startswitch() | Function to check if the column value starts with the specified value or not. |
| 6 | endswitch() | Function to check if the column value ends with the specified value or not. |
| 7 | format() | Function to format the values in column based on formatter. |
| 8 | to_char() | Function converts numeric type or datetype to character type. |
| 9 | trim() | Function trims the string values in the column. |
| 10 | ascii() | Returns the decimal representation of the first character in column. |
| 11 | char2hexint() | Returns the hexadecimal representation for a character string in a column. |
| 12 | chr() | Returns the Latin ASCII character of a given a numeric code value in column. |
| 13 | char() | It is an alias for chr() function. |
| 14 | character_length() | Returns the number of characters in the column. |
| 15 | char_length() | It is an alias for character_length() function. |
| 16 | edit_distance() | Returns the minimum number of edit operations required to transform string in a column into string specified in argument. |
| 17 | index() | Returns the position of a string in a column where string specified in argument starts. |
| 18 | initcap() | Modifies a string column and returns the string with the first character of each word in uppercase. |
| 19 | instr() | Searches the string in a column for occurrences of search string passed as argument. |
| 20 | lcase() | Returns a character string identical to string values in column, with all uppercase letters replaced with their lowercase equivalents. |
| 21 | left() | Truncates string in a column to a specified number of characters desired from the left side of the string. |
| 22 | length() | It is an alias for character_length() function. |
| 23 | levenshtein() | It is an alias for edit_distance() function. |
| 24 | locate() | Returns the position of the first occurrence of a string in a column within string in argument. |
| 25 | lower() | It is an alias for character_lcase() function. |
| 26 | lpad() | Returns the string in a column padded to the left with the characters specified in argument so that the resulting string has length specified in argument. |
| 27 | ltrim() | Returns the string in a column, with its left most characters removed up to the first character that is not in the string specified in argument. |
| 28 | ngram() | Returns the number of n gram matches between string in a column, and string specified in argument. |
| 29 | nvp() | Extracts the value of a name value pair where the name in the pair matches the name and the number of the occurrence specified. |
| 30 | oreplace() | Replaces every occurrence of search string in the column. |
| 31 | otranslate() | Returns string in a column with every occurrence of each character in string in argument replaced with the corresponding character in another argument. |
| 32 | replace() | It is an alias for oreplace() function. |
| 33 | reverse() | Returns the reverse of string in column. |
| 34 | right() | Truncates input string to a specified number of characters desired from the right side of the string. |
| 35 | rpad() | Returns the string in a column padded to the right with the characters specified in argument so the resulting string has length specified in argument. |
| 36 | rtrim() | Returns the string in column, with its right most characters removed up to the first character that is not in the string specified in argument. |
| 37 | soundex() | Returns a character string that represents the Soundex code for string in a column. |
| 38 | string_cs() | Returns a heuristically derived integer value that can be used to determine which KANJI1 compatible client character set was used to encode string in a column. |
| 39 | translate() | It is an alias for otranslate() function. |
| 40 | upper() | Returns a character string with all lowercase letters in a column replaced with their uppercase equivalents. |
| 41 | parse_url() | Extracts a part from a URL. |