Miscellany
public text v1 · immutableSELECT count(vendorsku) FROM
(
SELECT vendorsku FROM
(
(SELECT ST.vendorsku FROM `stock_supercom` ST, `stock_asi` SA WHERE ST.vendorsku = SA.vendorsku)
UNION
(SELECT ST.vendorsku FROM `stock_supercom` ST, `stock_ingram` SI WHERE ST.vendorsku = SI.vendorsku)
UNION
(SELECT SA.vendorsku FROM `stock_asi` SA, `stock_ingram` SI WHERE SA.vendorsku = SI.vendorsku)
) as TT
GROUP BY vendorsku
) as FT