从已创建的表中选择特定行创建MySQL表？

要从已创建的表中创建表，请使用CREATE TABLE AS SELECT语句。首先创建一个表 –

mysql> create table DemoTable1318
-> (
-> Id int,
-> FirstName varchar(10),
-> LastName varchar(10),
-> Age int
-> );
Query OK, 0 rows affected (0.50 sec)

使用insert命令将一些记录插入表中 –

mysql> insert into DemoTable1318 values(1,'Chris','Brown',21);
Query OK, 1 row affected (0.20 sec)
mysql> insert into DemoTable1318 values(2,'David','Miller',24);
Query OK, 1 row affected (0.12 sec)
mysql> insert into DemoTable1318 values(3,'Carol','Taylor',23);
Query OK, 1 row affected (0.11 sec)

使用select语句显示来自表的所有记录 –

mysql> select * from DemoTable1318;

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输出

+------+-----------+----------+------+
| Id   | FirstName | LastName | Age  |
+------+-----------+----------+------+
|   1  | Chris     | Brown    |  21  |
|   2  | David     | Miller   |  24  |
|   3  | Carol     | Taylor   |  23  |
+------+-----------+----------+------+
3 rows in set (0.00 sec)

以下是从已创建的表中选择特定行创建表的查询 –

mysql> create table DemoTable1319
-> as select *from DemoTable1318
-> where Age IN(21,23);
Query OK, 2 rows affected (0.81 sec)
Records: 2 Duplicates: 0 Warnings: 0

使用select语句显示表中的所有记录 –

mysql> select * from DemoTable1319;

输出

+------+-----------+----------+------+
| Id   | FirstName | LastName | Age  |
+------+-----------+----------+------+
| 1    | Chris     | Brown    | 21   |
| 3    | Carol     | Taylor   | 23   |
+------+-----------+----------+------+
2 rows in set (0.00 sec)