Difference between revisions of "MID()"

Latest revision as of 05:05, 26 July 2016

Purpose

Function to perform substring extraction

Syntax

MID(<expC> | <memofield>, <expN1> [,<expN2>])

See Also

AT(), AT_C(), ATNEXT(), CHRTRAN(), CHRTRANC(), CONCAT(), INLIST(), LEFT(), LEFTC(), LEN(), LENC(), OCCURS(), RAT(), RAT_C(), RIGHT(), RIGHTC(), SET EXACT, SET STRCOMPARE, SET STRESCAPE, STR(), STREXTRACT(), STRLEN(), STRSTR(), STRTRAN(), STUFF(), STUFFC(), SUBSTR(), SUBSTRC(), UCASE(), UPPER()

Description

The MID() function extracts a substring from <expC> or <memofield> starting at position <expN1> of width <expN2>. If <expN1> is negative, the extraction starts from the right side of the string. If <expN2> is omitted, a substring will be extracted up to the end of <expC>. When used in conjunction with the AT() function, the MID() function is very useful for extracting selected information from character strings.

Synonym of SUBSTR().

Example

m_usrname = "GTW  , Gary T West  "
? mid(m->m_usrname,at(",",m->m_usrname)+1)
Gary T West