■基本SQL文 例文 ・検索 / SELECT DBから項目検索 select * from member; select log from member where id = '00YoKjf945kUKik'; select log, id from member; select a.id, b.log from member a, comment b where a.id = b.id; ・挿入 / INSERT DBに項目追加 insert into member values('00krogr063Nfkme','データ挿入'); insert into member(id, log) values('00krogr063Nfkme','データ挿入'); ・更新 / UPDATE DBの項目更新 update member set log = 'データ更新。' where id