CREATE TABLE table_22223 ("Enzyme" TEXT, "Location" TEXT, "Substrate" TEXT, "Product" TEXT, "Chromosome" TEXT, "EC" TEXT, "OMIM" FLOAT, "Porphyria" TEXT)

how many porphyria have substrate -aminolevulinic acid
SELECT COUNT("Porphyria") FROM table_22223 WHERE "Substrate" = 'δ-Aminolevulinic acid'
SELECT COUNT("Porphyria") FROM "table_22223" WHERE "Substrate" = 'δ-Aminolevulinic acid'