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CREATE DATABASE__数据定义语言_SQL语法参考_云数据库 OceanBase-阿里云

格式

CREATE DATABASE [IF NOT EXISTS] dbname 
     [create_specification_list];

create_specification_list: 
     create_specification [, create_specification…]

create_specification: 
     [DEFAULT] {CHARACTER SET | CHARSET} [=] charsetname 
     | [DEFAULT] COLLATE [=] collationname
     | REPLICA_NUM [=] num 
     | PRIMARY_ZONE [=] zone

CREATE DATABASE用于创建数据库，并可以指定数据库的默认属性（如数据库默认字符集,校验规则等）。

• REPLICA_NUM指定副本数,副本数必须与zone的数量相等，默认情况下无需设置；
• PRIMARY_ZONE指定主zone的名称。

举例

Oceanbase>create database test1 default charset utf8mb4 collate utf8mb4_general_ci replica_num 3 primary_zone ET15SQA_1;
Query OK, 0 rows affected (0.04 sec)

Oceanbase>show create database test1;
+----------+--------------------------------------------------------------------------------------------------+
| Database | Create Database                                                                                  |
+----------+--------------------------------------------------------------------------------------------------+
| test1    | CREATE DATABASE `test1` DEFAULT CHARACTER SET = utf8mb4 REPLICA_NUM = 3 PRIMARY_ZONE = ET15SQA_1 |
+----------+--------------------------------------------------------------------------------------------------+
1 row in set (0.01 sec)

最后更新：2016-11-24 11:23:47

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