OceanBase ALTER DATABASE

描述

该语句用来修改 DataBase 的属性。

格式

alter_database_stmt:
        ALTER DATABASE [database_name] [SET] alter_specification_list;

alter_specification_list: 
    alter_specification [alter_specification ...]

alter_specification: 
    [DEFAULT] {CHARACTER SET | CHARSET} [=] charset_name
  | [DEFAULT] COLLATE [=] collation_name
  | REPLICA_NUM [=] int_num
  | PRIMARY_ZONE [=] zone_name
  | {READ ONLY | READ WRITE}
    | DEFAULT TABLEGROUP [=] {NULL | table_group_name}

参数解释

示例

• 修改数据库 test2 的字符集为 UTF8MB4，校对规则为 UTF8MB4_BIN，且为读写属性。

OceanBase(admin@test)>alter database test2 DEFAULT CHARACTER SET UTF8MB4;
Query OK, 0 rows affected (0.03 sec)

OceanBase(admin@test)>alter database test2 DEFAULT COLLATE UTF8MB4_BIN;
Query OK, 0 rows affected (0.03 sec)

OceanBase(admin@test)>alter database test2 READ WRITE;
Query OK, 0 rows affected (0.02 sec)