******* Comment ******* There are 3 types of comments. One is a SQL-style which starts with '--', the other is C++ style starts with '//'. Both regards the entire line starts with the comment symbols is a comment line. The C style starts with '/\*' and ends with '\*/' The following are examples of comments. * How to use -- :: -- This is a SQL-style comment. * How to use // :: // This is a C++ style comment. * How to use /* \*/ :: /* This is a C-style comment.*/ /* This is an example to use two lines as comment by using the C-style. */