MySQL 如何使用视图对数字添加分隔符

首先让我们创建一个表 −

mysql> create table DemoTable
(
   StudentId int
);
Query OK, 0 rows affected (0.62 sec)

使用insert命令向表中插入一些记录 −

mysql> insert into DemoTable values(343898456);
Query OK, 1 row affected (0.20 sec)
mysql> insert into DemoTable values(222333444);
Query OK, 1 row affected (0.22 sec)

以下是使用select语句从表中显示所有记录的查询 −

mysql> select *from DemoTable;

这将产生以下输出 −

+-----------+
| StudentId |
+-----------+
| 343898456 |
| 222333444 |
+-----------+
2 rows in set (0.00 sec)

这是创建视图的查询 −

mysql> create view myView_DemoTable as select format(StudentId, 0) AS `StudentId` from DemoTable;
Query OK, 0 rows affected (0.18 sec)
让我们检查视图表的记录：
mysql> select *from myView_DemoTable;

这将产生以下输出 −

+-------------+
| StudentId   |
+-------------+
| 343,898,456 |
| 222,333,444 |
+-------------+
2 rows in set (0.04 sec)

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