Can I know what are the possible types that we can create with Mcafee custom parsers? like SQL, file, folder, xml, custom parser?
You should take a look at the custom parser information to understand what custom parsers are capable of:
It's Product ID PD24926 in the Knowledge Center.
this is how to create a custom parser for syslog,
what about creating an a custom parser for example to read an sql custom table