南漪釣隱

關(guān)于數(shù)據(jù)庫 創(chuàng)建數(shù)據(jù)庫CREATE DATABASES 數(shù)據(jù)庫名稱;例：CREATE DATABASES itcast; 查看已有數(shù)據(jù)庫SHOW DATABASES; 查看某...