Difference between revisions of "RAT()"
Yvonne.milne (Talk | contribs) m (1 revision) |
m (Text replace - "Recital" to "Lianja") |
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cString1 = "fa" | cString1 = "fa" | ||
− | cString2 = " | + | cString2 = "Lianja is fast" |
? rat(cString1, cString2) | ? rat(cString1, cString2) | ||
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==Products== | ==Products== | ||
− | + | Lianja, Lianja Server | |
[[Category:Documentation]] | [[Category:Documentation]] | ||
[[Category:Functions]] | [[Category:Functions]] | ||
[[Category:String Data]] | [[Category:String Data]] | ||
[[Category:String Data Functions]] | [[Category:String Data Functions]] |
Revision as of 05:46, 8 December 2012
Purpose
Function to search for a substring
Syntax
RAT(<expC1>, <expC2> | <memofield> [, <expN>])
See Also
AT(), ATNEXT(), INLIST(), LEFT(), OCCURS(), RIGHT(), SET STRESCAPE, STR(), STREXTRACT(), STRTRAN(), STUFF(), SUBSTR()
Description
The RAT() function is a substring search function. It will search <expC2> or the specified memo field for the last occurrence of <expC1> and return the starting position as a numeric value. If the substring is not contained within the second character expression or memo field, then the function returns the value 0. The leftmost character of a string is in character position 1. The RAT() function will return the starting position of the specified occurrence of <expC1> when the optional numeric expression <expN> is used. The RAT() function is particularly useful in conjunction with RIGHT() or SUBSTR() functions for locating starting points for text extraction.
Example
? rat("is", "is is is") 7 cString1 = "fa" cString2 = "Lianja is fast" ? rat(cString1, cString2) 12 ?rat("Step", notes, 8) 24
Products
Lianja, Lianja Server