how many porphyria have substrate δ-aminolevulinic acid
CREATE TABLE table_182499_1 (porphyria VARCHAR, substrate VARCHAR)
SELECT COUNT(porphyria) FROM table_182499_1 WHERE substrate = "δ-Aminolevulinic acid"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_182499_1 (porphyria VARCHAR, substrate VARCHAR) Question: how many porphyria have substrate δ-aminolevulinic acid [/INST] SELECT COUNT(porphyria) FROM table_182499_1 WHERE substrate = "δ-Aminolevulinic acid" </s>