如何在 MySQL 中轻松地“从视图创建表”语法？

您可以使用创建表选择语法从视图创建表。语法如下 -

CREATE TABLE yourTableName AS SELECT
yourColumnName1,yourColumnName2,yourColumnName3,........N from yourViewName;

要运行上述查询，首先需要创建一个表，然后需要在该表上创建一个视图。之后运行查询。

首先，您需要创建一个表。创建表的查询如下 -

mysql> create table StuedntInformation
   -> (
   -> Id int,
   -> Name varchar(100)
   -> );
Query OK, 0 rows affected (0.54 sec)

上面，我们创建了一个表。之后您需要创建一个视图。创建视图的查询如下 -

mysql> CREATE VIEW view_Student AS SELECT Id,Name from StuedntInformation;
Query OK, 0 rows affected (0.11 sec)

现在我创建了一个名为“view_Student”的视图。使用show命令检查视图。

查询如下 -

mysql> SHOW CREATE VIEW view_Student;

输出

+--------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+----------------------+----------------------+
| View         | Create View                                                                                                                                                                                | character_set_client         | collation_connection |
+--------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+----------------------+----------------------+
| view_student | CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`%` SQL SECURITY DEFINER VIEW `view_student` AS select `stuedntinformation`.`Id` AS `Id`,`stuedntinformation`.`Name` AS `Name` from `stuedntinformation` | utf8 | utf8_general_ci |
+--------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+----------------------+----------------------+
1 row in set (0.00 sec)

我们将使用上面的视图名称“view_Student”来创建一个表。以下是使用视图创建表的查询 -

mysql> CREATE TABLE CreatingTableUsingViewStudent AS
   -> select Id,Name from view_Student;

Query OK, 0 rows affected (0.50 sec)
Records: 0 Duplicates: 0 Warnings: 0

现在您可以使用 show 命令检查表的 DDL。查询如下 -

mysql> show create table CreatingTableUsingViewStudent;

输出

+-------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Table                         | Create Table                                                                                                                                                                    |
+-------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| CreatingTableUsingViewStudent | CREATE TABLE `creatingtableusingviewstudent` ( `Id` int(11) DEFAULT NULL, `Name` varchar(100) DEFAULT NULL ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci |
+-------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
1 row in set (0.00 sec)

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