LEFT
Returns the first character or characters of a text.
LEFT("Text" [; Number])
\<emph\>text\</emph\> is the text where the initial partial words are to be determined.
\<emph\>Number\</emph\> (optional) specifies the number of characters for the start text. If this parameter is not defined, one character is returned.
LEFT("output";3) returns \<emph\>out\</emph\>.
