数据库的增删改查
查
查看已有数据库
SHOW DATABASES;
查看创建数据库scott的语句
SHOW CREATE DATABASE scott;
增
创建数据库scott
CREATE DATABASE scott;
创建数据库scott, 同时指定字符集UTF8
CREATE DATABASE scott CHARSET UTF8; CREATE DATABASE scott CHARACTER SET UTF8;
创建数据库scott, 同时指定字符集UTF8, 已存在时不报错
CREATE DATABASE IF NOT EXISTS scott CHARSET UTF8; CREATE DATABASE IF NOT EXISTS scott CHARACTER SET UTF8;
创建数据库scott, 同时指定字符集UTF8, 指定插入时按UTF8检查
CREATE DATABASE scott CHARACTER SET UTF8 COLLATE utf8_general_ci;
改
修改数据库scott字符集为UTF8
ALTER DATABASE scott CHARSET UTF8; ALTER DATABASE scott CHARACTER SET UTF8;
删
删除数据库scott
DROP DATABASE scott;
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