LEFT function
Returns the specified characters from the left side of a string.
Syntax
LEFT(string, length)
Arguments
string: a string expression.
length: an integer value that specifis how many characters to return.
Returns
A string, that contains specified characters from the left side of the input string. If length is less than or equal to 0, returns an empty string.
Examples
> SELECT LEFT('CeloSQL', 3);
Cel