mysql - LibreOffice Database: I'm having some trouble with a query, can someone please assist me? -

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this query have do:

list of how many subjects each academic staff teaching (show first name, last name , number of subjects being taught).

these tables , fields provided:

(**table**) employees (**fields**) employeeid, firstname, lastname (**table**) approvedunits (**fields**) approvedid, employeeid, unitcode (**table**) units (**fields**) unitcode, unitname

i'm not sure how structure query, can please give me pointers on how this? have far:

select count(*) approvedunits.employeeid, count(*) employees.firstname, employees.lastname employees, approvedunits  ;


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