mySQL inner join table IF needed -

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hey have following query:

select ua.fname, ua.lname, ua.title, ua.accdate, ua.address1,    ua.address2, ua.city, ua.state, ua.zip, ua.email, ua.phone,    labcasenum, speccasenum, deadlinedate, casedetail,    au.fname authname, au.lname, au.phone, au.email, au.role  useraccount ua  inner join usercase uc on ua.accnum = uc.userlink  inner join authperson au on uc.casenum = au.usercase  uc.casenum = 7903579800;

which works fine if there data in au table. however, no records return if there none in au table even though there's data in uc , ua tables had.

how can format query above ignore au table if there no data gathered?

did try using left join on table:

select ua.fname, ua.lname, ua.title, ua.accdate, ua.address1,    ua.address2, ua.city, ua.state, ua.zip, ua.email, ua.phone,    labcasenum, speccasenum, deadlinedate, casedetail,    au.fname authname, au.lname, au.phone, au.email, au.role  useraccount ua  inner join usercase uc on ua.accnum = uc.userlink  left join authperson au on uc.casenum = au.usercase  uc.casenum = 7903579800;

this return rows other tables ua , uc , return null au rows if there not matching usercase in table.


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