MySQL 从选择创建表
示例
您可以通过在SELECT语句末尾添加一条语句来从另一个表创建一个表CREATETABLE：
CREATE TABLE stack (
id_user INT,
username VARCHAR(30),
password VARCHAR(30)
);在同一数据库中创建一个表：
-- create a table from another table in the same database with all attributes CREATE TABLE stack2 AS SELECT * FROM stack; -- create a table from another table in the same database with some attributes CREATE TABLE stack3 AS SELECT username, password FROM stack;
从不同的数据库创建表：
-- create a table from another table from another database with all attributes CREATE TABLE stack2 AS SELECT * FROM second_db.stack; -- create a table from another table from another database with some attributes CREATE TABLE stack3 AS SELECT username, password FROM second_db.stack;
NB
要创建与另一个数据库中存在的另一个表相同的表，您需要指定数据库名称，如下所示：
FROM NAME_DATABASE.name_table