Usuń podwójne na SQL z wieloma klawiszami podstawowymi
delete from cpi
where (countryid, year) in (('AD', 2010), ('AF', 2009), ('AG', 1992))
Repulsive Rat
delete from cpi
where (countryid, year) in (('AD', 2010), ('AF', 2009), ('AG', 1992))