mysql> alter table employee drop foreign key fk_emp_dept; Query OK, 0 rows affected (0.22 sec) Records: 0 Duplicates: 0 Warnings: 0 mysql> drop table department; Query OK, 0 rows affected (0.04 sec) mysql> show tables; +---+ | Tables_in_rm_tab | +---+ | employee | +---+ ...
mysql> ALTER TABLE tb_emp5 DROP FOREIGN KEY fk_emp_dept1; Query OK, 0 rows affected (0.37 sec) Records: 0 Duplicates: 0 Warnings: 0 mysql> ALTER TABLE tb_emp8 DROP FOREIGN KEY fk_emp_dept5; Query OK, 0 rows affected (0.10 sec) Records: 0 Duplicates: 0 Warnings: 0 mysql> ALTER...
400 Database.QueryError Query Db failed, please check input value and instance status. 查询数据库失败,请检查输入参数及实例状态。 400 SqlExcutionFailed Database is in transition. Try the statement later. 数据库正在变更,请稍后再试。 400 SqlExecuteFailedOrTimeout sql command execution failed or timed...
This API is used to query the information of databases in a TencentDB instance which must be a source or disaster recovery instance. A maximum of 100 requests can be initiated per second for this API. We recommend you to use API Explorer Try it API Explorer provides a range of capabilitie...
This API is used to query the information of database tables in a TencentDB instance. It only supports source or disaster recovery instances. A maximum of 40 requests can be initiated per second for this API. We recommend you to use API Explorer Try it API Explorer provides a range of ...
QueryCount:查询总数。 AvgPeakMemory:平均峰值内存,单位:KB。 MaxPeakMemory:最大峰值内存,单位:KB。 AvgCpuTime:平均计算耗时,单位:ms。 MaxCpuTime:最大计算耗时,单位:ms。 AvgStageCount:平均 Stage 个数。 MaxStageCount:最大 Stage 个数。 AvgTaskCount:平均 Task 个数。 MaxTaskCount:最大 Task 个数...
version 9.0 MySQL 9.0 Reference Manual/.../DESCRIBE Statement 15.8.1 DESCRIBE Statement TheDESCRIBEandEXPLAINstatements are synonyms, used either to obtain information about table structure or query execution plans. For more information, seeSection 15.7.7.6, “SHOW COLUMNS Statement”, andSection 15.8...
The amount in bytes by which to increase a per-transaction memory pool which needs memory. See the description of transaction_prealloc_size. ParameterName string 参数名称。 transaction_alloc_block_size ParameterValue string 参数值。 8192 Engine string 数据库类型。 MySQL EngineVersion string 数据库版...
400 InvalidBackupSet The specified database does not exist in the backup set. 备份集中没有指定的数据库。 400 OrdTCommodityQueryError Failed to query for product. 查询产品失败。 400 ProductInstanceReleased The instance has been released. Please check before placing the order. 实例已释放,请核实后下...
RDS MySQL RDS PostgreSQL RDS SQL Server 说明 仅支持 SQL Server 2008 R2 注意事项 本API 不支持查询 MySQL 实例 SQL 洞察试用版的 SQL 洞察列表。 本API 不支持查询通过控制台手动导出的 SQL 洞察日志文件,只支持查询通过 DescribeSQLLogRecords API 生成(请求参数 Form 取值为 File)的 SQL 洞察文件列表。