Syntax:
left(<source_string> <position>)
Return:
String. Returns the substring from the 1st to the
<position>-th character on the left of <source_string>.
Parameter <source_string>:
Required parameter; string type; parameter name omitted.
Parameter <position>:
Required parameter; integer type; parameter name omitted.
Example:
Substring from 1st to 4th character of "中国人民电视台".
NLC snippet: left("中国人民电视台",4) // result is "中国人民".