sql - Concatenated where clause -


i cant sql query update database activties table. query:-

update activities  set  cjsid = cjsempnum.staffnumber  cjsempnum  activites.name = cjsempnum.surname + " " + cjsempnum.forename

i think problem clause. in activities number name stored smith john , in cjsempnum stored in 2 seperate columns surname , forename.

have tried making inner join? like...

update set
a.cjsid = cjsempnum.staffnumber cjsempnum inner join activities on a.name = cjsempnum.surname + ' ' + cjsempnum.forename


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