19 lines
467 B
MySQL
19 lines
467 B
MySQL
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DROP TABLE IF EXISTS ProductZeroPurchasesByProvince;
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CREATE TABLE ProductZeroPurchasesByProvince AS
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SELECT
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c.name AS CountryName,
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pro.name AS ProvinceName,
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COUNT(pro.name) AS cnt
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FROM
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Purchases pur
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JOIN
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Province pro ON pur.product = 0 AND pur.province = pro.rowid
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JOIN
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Country c ON pro.country = c.code
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GROUP BY
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c.code, pro.name;
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DROP INDEX IF EXISTS Time_index;
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CREATE INDEX Time_index ON Purchases(time,province,product,qty);
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