A line comment opener, such as --, # or //. A line comment ends at a CR or an LF.
--
#
//
Readonly
The characters that open the comment.
Whether the opener starts a comment only when a whitespace or control character (or the end of the text) follows it. MySQL's -- works this way, so 1--1 is 1 - (-1) there.
1--1
1 - (-1)
A line comment opener, such as
--,#or//. A line comment ends at a CR or an LF.