LEFT function
Syntax
LEFT (string, n)
Description
Use the LEFT function to extract a substring comprising the first n characters of a string, without specifying the starting character position. It is equivalent to the following substring extraction operation:
string [ 1, length ]
If string evaluates to the null value, null is returned. If n evaluates to the null value, the LEFT function fails and the program terminates with a run-time error message.
Example
PRINT LEFT("ABCDEFGH",3)
This is the program output:
ABC