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SHOW USED RESOURCE

Description

The SHOW USED RESOURCE syntax is used to query the resources that have been added to the specified database.

Syntax

ShowUsedResource ::=
  'SHOW' 'USED' 'DATABASE' 'RESOURCES' ('FROM' databaseName)?

databaseName ::=
  identifier

Supplement

  • When databaseName is not specified, the default is the currently used DATABASE; if DATABASE is not used, it will prompt No database selected.

Return Value Description

Column Description
name Data source name
type Data source type
host Data source host
port Data source port
db Database name
attribute Data source attribute

Example

  • Query resources for the specified database
SHOW USED DATABASE RESOURCES FROM sharding_db;
+------+-------+-----------+------+------+---------------------------------+---------------------------+---------------------------+---------------+---------------+-----------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| name | type  | host      | port | db   | connection_timeout_milliseconds | idle_timeout_milliseconds | max_lifetime_milliseconds | max_pool_size | min_pool_size | read_only | other_attributes                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
+------+-------+-----------+------+------+---------------------------------+---------------------------+---------------------------+---------------+---------------+-----------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| ds_0 | MySQL | 127.0.0.1 | 3306 | db_0 | 30000                           | 60000                     | 1800000                   | 50            | 1             | false     | {"dataSourceProperties":{"cacheServerConfiguration":"true","elideSetAutoCommits":"true","useServerPrepStmts":"true","cachePrepStmts":"true","rewriteBatchedStatements":"true","cacheResultSetMetadata":"false","useLocalSessionState":"true","maintainTimeStats":"false","prepStmtCacheSize":"200000","tinyInt1isBit":"false","prepStmtCacheSqlLimit":"2048","zeroDateTimeBehavior":"round","netTimeoutForStreamingResults":"0"},"healthCheckProperties":{},"initializationFailTimeout":1,"validationTimeout":5000,"leakDetectionThreshold":0,"registerMbeans":false,"allowPoolSuspension":false,"autoCommit":true,"isolateInternalQueries":false} |
| ds_1 | MySQL | 127.0.0.1 | 3306 | db_1 | 30000                           | 60000                     | 1800000                   | 50            | 1             | false     | {"dataSourceProperties":{"cacheServerConfiguration":"true","elideSetAutoCommits":"true","useServerPrepStmts":"true","cachePrepStmts":"true","rewriteBatchedStatements":"true","cacheResultSetMetadata":"false","useLocalSessionState":"true","maintainTimeStats":"false","prepStmtCacheSize":"200000","tinyInt1isBit":"false","prepStmtCacheSqlLimit":"2048","zeroDateTimeBehavior":"round","netTimeoutForStreamingResults":"0"},"healthCheckProperties":{},"initializationFailTimeout":1,"validationTimeout":5000,"leakDetectionThreshold":0,"registerMbeans":false,"allowPoolSuspension":false,"autoCommit":true,"isolateInternalQueries":false} |
+------+-------+-----------+------+------+---------------------------------+---------------------------+---------------------------+---------------+---------------+-----------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
2 rows in set (0.26 sec)
  • Query resources for the current database
SHOW USED DATABASE RESOURCES;
+------+-------+-----------+------+------+---------------------------------+---------------------------+---------------------------+---------------+---------------+-----------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| name | type  | host      | port | db   | connection_timeout_milliseconds | idle_timeout_milliseconds | max_lifetime_milliseconds | max_pool_size | min_pool_size | read_only | other_attributes                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
+------+-------+-----------+------+------+---------------------------------+---------------------------+---------------------------+---------------+---------------+-----------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| ds_0 | MySQL | 127.0.0.1 | 3306 | db_0 | 30000                           | 60000                     | 1800000                   | 50            | 1             | false     | {"dataSourceProperties":{"cacheServerConfiguration":"true","elideSetAutoCommits":"true","useServerPrepStmts":"true","cachePrepStmts":"true","rewriteBatchedStatements":"true","cacheResultSetMetadata":"false","useLocalSessionState":"true","maintainTimeStats":"false","prepStmtCacheSize":"200000","tinyInt1isBit":"false","prepStmtCacheSqlLimit":"2048","zeroDateTimeBehavior":"round","netTimeoutForStreamingResults":"0"},"healthCheckProperties":{},"initializationFailTimeout":1,"validationTimeout":5000,"leakDetectionThreshold":0,"registerMbeans":false,"allowPoolSuspension":false,"autoCommit":true,"isolateInternalQueries":false} |
| ds_1 | MySQL | 127.0.0.1 | 3306 | db_1 | 30000                           | 60000                     | 1800000                   | 50            | 1             | false     | {"dataSourceProperties":{"cacheServerConfiguration":"true","elideSetAutoCommits":"true","useServerPrepStmts":"true","cachePrepStmts":"true","rewriteBatchedStatements":"true","cacheResultSetMetadata":"false","useLocalSessionState":"true","maintainTimeStats":"false","prepStmtCacheSize":"200000","tinyInt1isBit":"false","prepStmtCacheSqlLimit":"2048","zeroDateTimeBehavior":"round","netTimeoutForStreamingResults":"0"},"healthCheckProperties":{},"initializationFailTimeout":1,"validationTimeout":5000,"leakDetectionThreshold":0,"registerMbeans":false,"allowPoolSuspension":false,"autoCommit":true,"isolateInternalQueries":false} |
+------+-------+-----------+------+------+---------------------------------+---------------------------+---------------------------+---------------+---------------+-----------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
2 rows in set (0.26 sec)