SHOW SHARDING TABLE NODES 语法用于查询指定逻辑库中的分片表的节点分布。
ShowShardingTableNode::=
'SHOW' 'SHARDING' 'TABLE' 'NODE' ('FROM' databaseName)?
databaseName ::=
identifier
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。| 列 | 说明 |
|---|---|
| name | 分片规则名称 |
| nodes | 分片节点 |
SHOW SHARDING TABLE NODES FROM sharding_db;
mysql> SHOW SHARDING TABLE NODES 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)
SHOW SHARDING TABLE NODES;
mysql> 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 |
+--------------+------------------------------------------------------------------------------------------------------------+
1 row in set (0.00 sec)
SHOW、SHARDING、TABLE、NODE、FROM