integrity constraints

view denotation and generative algorithm of integrity constraints in deductive databases

演绎数据库中完整性约束视图表示和生成算法

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the database uses static semantic integrity constraints to ensure data quality.

数据库使用静态语义完整性约束来确保数据质量。

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Data integrity constraints are important issues in design of database and its application systems.

数据完整性约束是数据库及应用系统设计中的一个重要问题。

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minimization of path expression under structural integrity constraints for xml

XML结构完整性约束下的路径表达式的最小化

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This paper takes XML as a public model and studies the conversion technology among heterogeneous relational database systems by means of reversible conversion between relational and XML, and this process keep on entity integrity constraints of source database.

所以本文研究以XML为公共模型，通过关系数据库与XML的可逆双向转换，建立异构关系数据源的统一转换工具。转换过程保留关系数据库的完整性约束。

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Referential integrity constraints enforce the relational structure of the database.

参照完整性约束可以加强数据库的关系结构。

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Integrity constraints of distributed database in massive data collection

分布式数据库中海量数据采集完整性约束

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The data volumes in data warehouse databases make traditional referential integrity constraints too costly.

数据仓库中的数据量使得传统引用完整性约束的成本太高。

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based on the study of integrity constraints depicted by xml schemas , the concept of exclusive inclusion constraint is proposed.

在对XML模式反映的完整性约束研究的基础上，本文提出了排他性包含约束的概念；

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Implementation Method of Data Integrity Constraints by Using Visual Foxpro

VISUAL FOXPRO实现数据完整性约束的方法

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this report proposes the theory of integrity constraints for the rsm.

本文提出了关于资源空间模型的完整性约束的理论。

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Technology Based on Client/ Server Database Integrity Constraints

基于Client/Server数据库完整性约束的实现技术

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Replication to non-DB2 target tables with referential integrity constraints is supported only if you manually define the constraints on the corresponding nicknames.

只有在相应别名上手工定义约束，才支持到带有参照完整性约束的非DB2目标表的复制。

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STEP E: Define appropriate referential integrity constraints between the fact table and the three dimension tables.

第5步：在事实表和3个维度表之间建立正确的引用完整性约束。

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This table uses referential integrity constraints to ensure data validity.

这个表使用引用完整性约束确保数据的有效性。

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For tables that use cascading referential integrity constraints, such as the on delete cascade clause and the on update cascade clause, replication now supports merge operations on precomputed partitions.

现在，对于使用级联引用完整性约束（例如，ondeletecascade子句和onupdatecascade子句）的表，复制支持预计算分区上的合并操作。

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During such operations, the database also maintains referential integrity constraints.

重用表中的空闲空间，新旧数据交叉存放，维持完整性约束。

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a query optimizing strategy of path expression based on integrity constraints

一种基于完整性约束的路径表达式的查询优化策略

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Recommendation: Use the "no load" option for nicknames with referential integrity constraints and load the target table outside of the replication administration tools.

推荐：为带有参照完整性约束的别名使用“no load”选项，并在复制管理工具外部装入目标表。

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Study of Structural Integrity Constraints for XML

XML结构完整性约束的研究

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Deleting the row violated the integrity constraints for the column or table.

删除该行违反了该列或表的完整性约束.

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The constraints security layer consists of integrity constraints, classification and inference constraints, access constraints, and application semantics constraints. The adaptive detection layer consists of active database lev-el, relation schema level, transaction level and application semantics level.

将约束安全层分为完整性约束、分级和推理约束、访问约束和应用语义约束四个子层，将适应性检测层分为数据库活动级、关系模式级、事务级和应用语义级四个子层。

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building integrity constraints right into the database is the surest way to make sure your data stays in good shape.

在数据库中构建完整性约束是确保数据完整有效的最可靠的方法。

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In previous deductive database systems, generally, integrity constraints and IDB rules are denoted and memo-rized respectively.

在演绎数据库系统中，一般将完整性约束条件和IDB规则分别表示和存储。

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Also, the Q Apply program does not drop referential integrity constraints on nicknames during the loading process and then restore them.

同样，在执行装入操作期间，Q Apply程序也不删除别名上的参照完整性约束，并在这之后恢复它们。

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Copy tables, data, stored procedures, referential integrity constraints, security, and indexes. Specify the object ( s) to copy.

复制表、数据、存储过程、引用完整性约束、安全性和索引。请指定要复制的对象。

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view denotation and generative algorithm of integrity constraints in deductive databases

演绎数据库中完整性约束视图表示和生成算法

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Do not include any clauses defining declarative referential integrity constraints.

不要包括可定义声明引用完整性约束的子句。

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Integrity Constraints for Data Integration and Exchange Based on XML

基于XML数据集成与交换中的完整性约束研究

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Referential integrity constraints are not replicated, indexes are optionally replicated.

不会复制引用完整性约束，可以选择复制索引。

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