BG1
https://blog.hatena.ne.jp/BG1/
車輪のx発明 ~B.G's Blog~
https://bg1.hatenablog.com/
PostgreSQL
PostgreSQLの中で、四則演算を使う。https://www.postgresql.jp/docs/9.4/functions-math.html postgresdb1=# CREATE TABLE products ( id INT, name VARCHAR(100), price DECIMAL(10, 2), tax DECIMAL(10, 2), quantity INT, discount DECIMAL(10, 2) ); CREATE TABLE postgresdb1=# INSERT INTO products (id, name, price, tax, quan…
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Hatena Blog
https://hatena.blog
2025-07-13 21:00:00
四則演算
rich
https://bg1.hatenablog.com/entry/2025/07/13/210000
1.0
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