STRING_TAIL macro

The STRING_TAIL macro is available only in Unica Campaign.

Syntax

STRING_TAIL(num_chars, data)

Parameters

num_chars

The number of characters to returns from the end of each string in data. This must be a positive integer greater than zero.

data

ASCII text string values. This can be ASCII text in quotes, a column of text, a cell range containing text, or an expression evaluating to any of the above. For the format definition of data, see the "Macro Function Parameters" section in the chapter in this guide for your product.

Description

STRING_TAIL returns the last num_chars characters from each string value in the specified data range. All string values are padded to the length of the longest string with null characters " \0 ". Then the last num_chars are returned from each string. If num_chars is greater than the number of characters in a text string, the entire text string is returned.

Examples


`TEMP = STRING_TAIL(3, "JAN 15, 1997")` Creates a new column named `TEMP`, which contains the ASCII text string " `997` ".
`TEMP = STRING_TAIL(10, "Pressure")` Creates a new column named `TEMP`, which contains the ASCII text string " `Pressure` ".
`TEMP = STRING_TAIL(5, V1)` Creates a new column named `TEMP` containing the last five characters of each string in column `V1`.
`TEMP = STRING_TAIL(1, V1:V3)` Creates three new columns named `TEMP`, `VX`, and `VY`. The values in the `TEMP` column are the last characters of the strings in the corresponding rows of column `V1`, the values of the `VX` column are the last characters of strings in corresponding rows of column `V2`, and the values of the `VY` column are the last characters of the strings in corresponding rows of column `V3`.
`TEMP = STRING_TAIL(12, V4[1:50]:V6]` Creates three new columns named `TEMP`, `VX`, and `VY`. The values in the `TEMP` column are the last 12 characters of the strings in rows 1-50 of column `V1`, the values of the `VX` column are the last 12 characters of strings in rows 1-50 of column `V2`, and the values of the `VY` column are the last 12 characters of the strings in rows 1-50 of column `V3`.

Related functions


Function	Description
`STRING_CONCAT`	Concatenates two text strings from the specified data ranges
`STRING_HEAD`	Returns the first n characters of each string in the specified data range
`STRING_LENGTH`	Returns the length of each string in the specified data range
`STRING_SEG`	Returns the string segment between two specified indexes