SHOW SHARDING TABLE NODES

语法

• 未指定 databaseName 时，默认是当前使用的 DATABASE。 如果也未使用 DATABASE 则会提示 No database selected。

返回值说明

• 查询指定逻辑库中指定分片表的节点分布

SHOW SHARDING TABLE NODES t_order_item FROM sharding_db;

mysql> SHOW SHARDING TABLE NODES t_order_item FROM sharding_db;
| name         | nodes                                                                                                      |
+--------------+------------------------------------------------------------------------------------------------------------+
| t_order_item | resource_0.t_order_item_0, resource_0.t_order_item_1, resource_1.t_order_item_0, resource_1.t_order_item_1 |
1 row in set (0.00 sec)

• 查询当前逻辑库中指定分片表的节点分布

mysql> SHOW SHARDING TABLE NODES t_order_item;
+--------------+------------------------------------------------------------------------------------------------------------+
| name         | nodes                                                                                                      |
+--------------+------------------------------------------------------------------------------------------------------------+
| t_order_item | resource_0.t_order_item_0, resource_0.t_order_item_1, resource_1.t_order_item_0, resource_1.t_order_item_1 |
1 row in set (0.00 sec)

• 查询指定逻辑库中所有分片表的节点分布

SHOW SHARDING TABLE NODES FROM sharding_db;

• 查询当前逻辑库中所有分片表的节点分布

SHOW SHARDING TABLE NODES;

+--------------+------------------------------------------------------------------------------------------------------------+
| name         | nodes                                                                                                      |
+--------------+------------------------------------------------------------------------------------------------------------+
| t_order_item | resource_0.t_order_item_0, resource_0.t_order_item_1, resource_1.t_order_item_0, resource_1.t_order_item_1 |
+--------------+------------------------------------------------------------------------------------------------------------+

保留字