sql - can activate trigger when last record entered to table? -


am new triggers , have 3 tables bill table main data of bill billitem table items listed in bill billserialnb table serial numbers related items listed in bill

i need trigger compare entered billitem qty serialnmb related these billitems if serialnb not equal billitem qty should raise error , return .

the idea if trigger done after insert or update on billserialnb table , being fired on each single record entered billserialnb table , not able right counting of serial number entered , can catch whole rows enter table ?!

is there solution ?


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