sys.xml_schema_types (Transact-SQL)对于作为类型(T 的symbol_space)的每个 XML 架构组件,相应地返回一行。 展开表 列名 数据类型 说明 <inherited columns> 从sys.xml_schema_components 继承列。 is_abstract bit 1 = 类型是抽象类型。此类型元素的所有实例都必须使用
The following example creates a type in theProductionschema, and then transfers the type to thePersonschema. SQL USEAdventureWorks2022; GOCREATETYPEProduction.TestTypeFROM[VARCHAR](10)NOTNULL; GO-- Check the type owner.SELECTsys.types.name, sys.types.schema_id, sys.schemas.nameFROMsys.typesJOIN...
The pattern just described applies to all types of instruments, not just mutexes. A value of Performance_schema_mutex_classes_lost greater than 0 can happen in two cases: To save a few bytes of memory, you start the server with --performance_schema_max_mutex_classes=N, where N is les...
PreScan: SQL Schema Data TypesArticle 11/18/2010 Continuing on from my previous post PreScan: SQL Database Schema Distribution this Scan looks at the datatypes used in the database you need to tune.Perhaps one of the less useful of the pre-scans it is still handy. It highlights the use ...
Return Types Remarks Show 2 more Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance Azure Synapse Analytics Analytics Platform System (PDW) SQL analytics endpoint in Microsoft Fabric Warehouse in Microsoft Fabric Returns the schema name associated with a schema ID. ...
INNODB_TRX :这个INFORMATION_SCHEMA表提供了当前在InnoDB内执行的每个事务的信息,包括事务状态(例如,它是正在运行还是正在等待锁),事务何时启动,以及事务正在执行的特定SQL语句。 data_locks :这个Performance Schema表为每个持有锁和每个等待持有锁被释放的锁请求包含一行: ...
Data Types Functions and Operators SQL Statements The InnoDB Storage Engine Alternative Storage Engines Replication Group Replication MySQL Shell Using MySQL as a Document Store InnoDB Cluster MySQL NDB Cluster 7.5 and NDB Cluster 7.6 Partitioning Stored Objects INFORMATION_SCHEMA Tables...
Use java -jar schemaSpy.jar -dbhelp for a complete list of the supported database types and the parameters that each one requires. Type Description db2 IBM DB2 with the 'App' Driver db2net IBM DB2 with the 'Net' Driver firebird Firebird hsqldb HSQLDB Server mssql ...
are not mapped to previous versions of data types. For example, if the statementALTER TABLE ADD datetime2 columnis used in SQL Server 2012 (11.x), the data type is not translated tonvarcharfor SQL Server 2005 (9.x) Subscribers. In some cases, schema changes are blocked on the Publisher...
Applies to: SQL ServerTracks schema-only articles for merge replication. This table is stored in the publication and subscription databases.Проширитабелу Column nameData typeDescription name sysname The name of the schema-only article in the merge publication. type tinyint Ind...