SQL$-7.$ List those sales reps who started working for the company before their manager.

$\backslash$table$[[\backslash$table$[[$SELECT Rep.RepNum, Rep.LastName, Mgr$.$RepNum,$],[$Mgr$.$LastName$],[$FROM tblSIsrep Mgr$,$ tblSIsrep Rep$],[$WHERE Mgr$.$RepNum $=$ Rep.RepNum$],[$AND Rep.StartDate $$ Mgr$.$StartDate;$]],\backslash$table$[[$SELECT Rep.RepNum, Rep.LastName, Mgr$.$RepNum,$],[$Mgr$.$LastName$],[$FROM tblSlsrep Mgr$,$ tblSlsrep Rep$],[$WHERE Mgr$.$RepNum $=$ Rep.MgrID$],[$AND Rep.StartDate $$ Mgr$.$StartDate;$]]],[\backslash$table$[[$SELECT RepNum, LastName, Mgr$.$RepNum,$],[$Mgr$.$LastName$],[$FROM tblSlsrep Mgr$,$ tblSlsrep Rep$],[$WHERE Mgr$.$RepNum $=$ Rep.MgrID$],[$AND Rep.StartDate $$ Mgr$.$StartDate;$]],\backslash$table$[[$SELECT Rep.RepNum, Rep.LastName, Mgr$.$RepNum,$],[$Mgr$.$LastName$],[$FROM tblSlsrep Mgr$,$ tblSlsrep Rep$],[$WHERE Rep.RepNum $=$ Mgr$.$MgrID$],[$AND Rep.StartDate $$ Mgr$.$StartDate;$]]]]$