Difference between revisions of "LEN()"

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==See Also==
 
==See Also==
[[AT()]], [[LEFT()]], [[LENC()]], [[RAT()]], [[RIGHT()]], [[SET STRESCAPE]], [[STREXTRACT()]], [[STRLEN()]], [[STRTRAN()]], [[STUFF()]], [[SUBSTR()]]
+
[[AT()]], [[LEFT()]], [[LENC()]], [[RAT()]], [[RIGHT()]], [[SET STRESCAPE]], [[STR_COMPRESS()]], [[STR_UNCOMPRESS()]], [[STREXTRACT()]], [[STRLEN()]], [[STRTRAN()]], [[STUFF()]], [[SUBSTR()]]
  
 
==Description==
 
==Description==
The LEN() function returns the output width of the specified expression <exp>.  The expression can be of any data type, including memo fields and arrays.  When checking the length of character expressions, the optional <expL> can be specified.  If <expL> is specified and evaluates to .T. (true), the LEN() function will return the length of the character expression after stripping any formatting options such as BOLD().
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The LEN() function returns the output width of the specified expression <exp>.  The expression can be of any data type, including memo fields and arrays.  The optional <expL> is ignored.
 +
 
 +
Use the [[LENC()]] function when working with Unicode/UTF-8 characters.
  
 
==Example==
 
==Example==
Line 21: Line 23:
 
? len("")
 
? len("")
 
         0
 
         0
? len(bold("Hello"))
 
        9
 
? len(bold("Hello"),.T.)
 
        5
 
 
</code>
 
</code>
  

Latest revision as of 12:45, 22 March 2021

Purpose

Function to return length of specified expression

Syntax

LEN(<exp>[,<expL>])

See Also

AT(), LEFT(), LENC(), RAT(), RIGHT(), SET STRESCAPE, STR_COMPRESS(), STR_UNCOMPRESS(), STREXTRACT(), STRLEN(), STRTRAN(), STUFF(), SUBSTR()

Description

The LEN() function returns the output width of the specified expression <exp>. The expression can be of any data type, including memo fields and arrays. The optional <expL> is ignored.

Use the LENC() function when working with Unicode/UTF-8 characters.

Example

open database southwind
use example
? len(last_name)
        16
? len(notes)
      8851
? len("")
         0