Substr
From InterBase
Go Up to The InterBase UDF Library
substr(<s,m,n>) returns the substring of <s> starting at position <m> and ending at position <n>.
- Note: This function can receive and return up to 80 characters, the limit on an InterBase character string.
DECLARE EXTERNAL FUNCTION SUBSTR CSTRING(80), SMALLINT, SMALLINT RETURNS CSTRING(80) FREE_IT ENTRY_POINT 'IB_UDF_substr' MODULE_NAME 'ib_udf';