)I created a database about the employee information of an office using xampp and mysql
2)I designed a wordpress site.

a) if I want to insert, delete or view database from the wordpress site what should I do?
b) how to linked up this two? so that the information of database can be shown in wordpress site without opening new tab.
c) I tried with some plugins,exec php but nothing works.
thnx in advance
plz help