|Oracle® OLAP DML Reference
10g Release 1 (10.1)
Part Number B10339-02
TEXT or NTEXT
EXTCHARS(text-expression [start [length]])
The expression from which a portion is to be extracted. When text-expression is a multiline text value, EXTCHARS preserves the line breaks in the returned value.
When you specify a TEXT expression, the return value is TEXT. When you specify an NTEXT expression, the return value is NTEXT.
An integer that represents the character position at which to begin extracting. The position of the first character in text-expression is 1. When you omit this argument, EXTCHARS starts with the first character.
An integer that represents the number of characters to be extracted. When length is not specified, or exceeds the number of characters from start to the end of text-expression, the part from start to the end of text-expression is extracted.
When you are using a multibyte character set, you can use the EXTBYTES function instead of the EXTCHARS function.