4D v16

SUBSTRING

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4D v16

4D SQL Reference

Functions

SUBSTRING



	Command SUBSTRINGSUBSTRING (arithmetic_expression, arithmetic_expression, [arithmetic_expression])

Description

The SUBSTRING function returns a substring of the first arithmetic_expression passed. The second arithmetic_expression indicates the starting position of the substring and the optional third arithmetic_expression indicates the number of characters to return counting from the starting position indicated. If the third arithmetic_expression is not passed, the function will return all the characters starting from the position indicated.

Example

This example will return 4 characters of the store name starting with the 2nd character:

SELECT SUBSTRING(Store_name,2,4)
FROM Geography
WHERE Store_name = 'Paris';