The database engine uses schema modification sch - m locks during a table data definition language operation , such as adding a column or dropping a table 数据库引擎在表数据定义语言( ddl )操作(例如添加列或删除表)的过程中使用架构修改( sch - m )锁。
Sql server will consider parallel execution plans for queries , index data definition language operations , and static and keyset - driven cursor population Sql server将考虑为查询、索引数据定义语言( ddl )操作、静态的和由键集驱动的游标填充实施并行执行计划。
The maxdop clause can now be specified on index data definition language statements , controlling the number of parallel operations used by that specific statement Maxdop子句现在可以在索引数据定义语言( ddl )语句上指定,以控制特定语句所使用的并行操作的数目。
Defines customized code that compensates for data definition language changes to transactional publications that contain custom user - defined stored procedures 定义自定义代码,该代码可以补偿对包含自定义用户定义存储过程的事务性发布所做的数据定义语言( ddl )更改。
Dblook is an important tool that ships with the derby database engine that is used to generate data definition language scripts against a database schema Dblook是随derby数据库引擎一起发布的一个重要工具,它用于生成一个数据库模式上的数据定义语言( data definition language , ddl )脚本。
A data definition language script is created for each entity enterprise bean when the bean is packaged into an ejb module using the application assembly tool 当使用应用程序装配工具将bean打包到ejb模块中时,已经为每个实体企业bean创建了一个数据定义语言( data definition language , ddl )脚本。
It describes the differences between the two products in database options , data definition language , data modeling , sql considerations , data conversion , and application conversion 它描述了这两种产品在数据库选项、数据定义语言( ddl ) 、数据建模、 sql考虑、数据转换和应用程序转换等方面的不同之处。
Mdx provides additional intrinsic functions , seamless integration of user - defined functions , enhanced data definition language statements , and new data manipulation language statements Mdx提供新增的内部函数、与用户定义函数的无缝集成、增强的数据定义语言( ddl )语句以及新增的数据操作语言( dml )语句。
Updating asynchronous statistics cannot take place if any data definition language statements , such as create , alter , and drop statements , occur in the same explicit user transaction 如果在同一个显式用户事务中出现某些数据定义语言( ddl )语句(例如, create 、 alter和drop语句) ,则无法更新异步统计信息。
You ll discover the differences between the two products in database options , data definition language , data modeling , sql considerations , data conversion , and application conversion 您将发现这两种产品在数据库选项、数据定义语言( ddl ) 、数据建模、 sql考虑事项、数据转换和应用程序转换方面存在的差异。
A data definition language or data description language (DDL) is a syntax similar to a computer programming language for defining data structures, especially database schemas.