tokizuoh https://blog.hatena.ne.jp/tokizuoh/ カルボナーラ街道 https://tokizuoh.hatenablog.com/ PostgreSQL 今日もSQLZOOでSQLを学んだ。 sqlzoo.net 昨日のブログでBETWEENを試したが、以下のようにも書ける。 SELECT idl.id AS id, idl.name AS name, COUNT(idl.id) AS count FROM idol idl INNER JOIN idol_unit idlunt ON idl.id = idlunt.idol INNER JOIN unit unt ON idlunt.unit = unt.id GROUP BY idl.id HAVING idl.count >= 2 AND idl.count <= 3 ORDER BY … 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftokizuoh.hatenablog.com%2Fentry%2F2022%2F02%2F09%2F001327" title="PostgreSQLのLIKEを試す - カルボナーラ街道" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> Hatena Blog https://hatena.blog 2022-02-09 00:13:27 rich https://tokizuoh.hatenablog.com/entry/2022/02/09/001327 1.0 100%