In this paper, we describe the current techniques used in testing sqlserver Analysis Services, the challenges we face, and techniques we are currently looking into to improve the testing of sqlserver Analysis Servic...
详细信息
ISBN:
(纸本)9781605582337
In this paper, we describe the current techniques used in testing sqlserver Analysis Services, the challenges we face, and techniques we are currently looking into to improve the testing of sqlserver Analysis Services both in functionality as well as performance. Copyright 2008 ACM.
microsoft sql server spatial libraries contain several components that handle geometrical and geographical data types. With advances in geo-sensing technologies, there has been an increasing demand for geospatial stre...
详细信息
microsoft sql server spatial libraries contain several components that handle geometrical and geographical data types. With advances in geo-sensing technologies, there has been an increasing demand for geospatial streaming applications. microsoft sql server StreamInsight (StreamInsight, for brevity) is a platform for developing and deploying streaming applications that run continuous queries over high-rate streaming events. With its extensibility infrastructure, StreamInsight enables developers to integrate their domain expertise within the query pipeline in the form of user defined modules. This demo utilizes the extensibility infrastructure in microsoft StreamInsight to leverage its continuous query processing capabilities in two directions. The first direction integrates sql spatial libraries into the continuous query pipeline of StreamInsight. StreamInsight provides a well-defined temporal model over incoming events while sql spatial libraries cover the spatial properties of events to deliver a solution for spatiotemporal stream query processing. The second direction extends the system with an analytical refinement and prediction layer. This layer analyzes historical data that has been accumulated and summarized over the years to refine, smooth and adjust the current query output as well as predict the output in the near future. The demo scenario is based on transportation data in Los Angeles County.
sqlserver 7.0 offers three different styles of replication that we call Transactional Replication, Snapshot Replication, and Merge Replication. Merge Replication means that data changes can be performed at any replic...
详细信息
ISBN:
(纸本)1581130848
sqlserver 7.0 offers three different styles of replication that we call Transactional Replication, Snapshot Replication, and Merge Replication. Merge Replication means that data changes can be performed at any replica, and that the changes performed at multiple replicas are later merged together. Because Merge Replication allows updates to disconnected replicas, it is particularly well suited to applications that require a lot of autonomy. A special process called the Merge Agent propagates changes between replicas, filters data as appropriate, and detects and handles conflicts according to user-specified rules.
Testing a query language is a complex and challenging task. A tester must determine the representative subset of queries which must be tested from an infinite set of valid queries. Once the representative set of queri...
详细信息
ISBN:
(纸本)9781605582337
Testing a query language is a complex and challenging task. A tester must determine the representative subset of queries which must be tested from an infinite set of valid queries. Once the representative set of queries is determined, they then face the task of verifying the results returned when the queries are executed. In this paper, we describe the following four verification approaches we have used to test Entity sql (esql) queries: QueryBuilder, Query Mutations, Reverse Query Processing, and a Baseline Framework. We provide a general overview of each of the verification techniques, and where relevant we provide a description of the specific implementation details used to test esql. We also provide our observations about each of the verification techniques. Copyright 2008 ACM.
With enterprise-class database systems like microsoft sql server, changing mission-critical components such as the relational database engine pose significant challenges to the engineering teams involved. This is beca...
详细信息
ISBN:
(纸本)9781605582337
With enterprise-class database systems like microsoft sql server, changing mission-critical components such as the relational database engine pose significant challenges to the engineering teams involved. This is because customers carefully configure, tune, and test applications and the underlying database system for their specific scenario to ensure they achieve desirable performance. This situation poses particular challenges for developing and extending existing database components of high complexity such as relational query processing where a change to a policy or heuristics may adversely affect performance of a customer workload [1]. Mitigating risk of regressions through a variety of testing and validation techniques during development is essential for the database system engineering team. In this paper, we present a case study to demonstrate the challenges of testing an extension to the query processor in microsoft sql server 2008 targeted at improved query performance for star join queries [2], We discuss the unique range of problem spaces which must be addressed, and present an overview of the variety of techniques that are used to provide a high level of quality. Our main contribution is an iterative process of interleaved development and performance test phases using customer workloads to quantify performance improvement and to limit regressions. We present our experiences with this approach and explore some future opportunities with the hope that they will encourage discussion and additional research in the area of query processor architecture and testing. Copyright 2008 ACM.
The sqlserver development team is planning to release a latest Java Database Connectivity (JDBC) driver for both sqlserver 2000 and sqlserver 2005: the microsoft sql server 2005 JDBC Driver. Based on the uptake, fe...
详细信息
The sqlserver development team is planning to release a latest Java Database Connectivity (JDBC) driver for both sqlserver 2000 and sqlserver 2005: the microsoft sql server 2005 JDBC Driver. Based on the uptake, feedback and usage of the sqlserver 2000 JDBC driver, the team is providing enterprise-class JDBC connectivity and support for sqlserver, along with a map to ensure that the latest JDBC spec implementations are available to sqlserver customers as the specification evolves. A major update to the driver is the ISV-friendly licensing structure that enables the driver to be freely redistributable for all registered patterns. It includes several improvements in performance, transactions, and deep support for the latest sqlserver 2005 types.
When people hear "Visual Basic", they remember Quick-from the DOS days. As a result, their knee-jerk reaction often that Visual Basic is not really a serious language, they do not pay it the attention it act...
详细信息
ISBN:
(纸本)9781595938657
When people hear "Visual Basic", they remember Quick-from the DOS days. As a result, their knee-jerk reaction often that Visual Basic is not really a serious language, they do not pay it the attention it actually deserves. In Visual Basic is a full-fledged modern object-oriented with many unique features, such as static typing possible but dynamic typing where necessary, declarative handling, deep XML integration with optional XSD types, highly expressive query comprehension, type inference, etc. etc. This makes Visual Basic actually interesting to researchers and practitioners than "popular" static languages such as Java, C] and dynamic such as Ruby or JavaScript.
Language Integrated Query (LINQ) is a framework that is rooted in the theoretical ideas of monads and monad comprehensions to allow seamless querying over objects, XML, and relational data. Instead of blindly gazing a...
详细信息
ISBN:
(纸本)159593491X
Language Integrated Query (LINQ) is a framework that is rooted in the theoretical ideas of monads and monad comprehensions to allow seamless querying over objects, XML, and relational data. Instead of blindly gazing at the perceived impedance mismatch between the structure of these various data models, LINQ leverages the commonalities between the operations on these data models to achieve deep semantic integration.
Programming distributed data-intensive web and mobile applications is gratuitously hard. As the world is moving more and more toward the software as services model, we have to come up with practical solutions to build...
详细信息
ISBN:
(纸本)9781595938657
Programming distributed data-intensive web and mobile applications is gratuitously hard. As the world is moving more and more toward the software as services model, we have to come up with practical solutions to build distributed systems that are approachable for normal programmers. Just like Visual Basic democratized programming Windows by removing much of the boilerplate, such as message pumps and window handles, that contributed more to the problem than to the solution, we propose a toolkit of language extensions, APIs, and tools that do the same for web programming. As a result, ordinary programmers can concentrate on the essential aspects of building distributed and mobile applications such as partitioning and flowing code and data across tiers, deployment, security, etc. without getting bogged down in low level details.
When considering the past or the future, dear apprentice, be mindful of the present. If, while considering the past, you become caught in the past, lost in the past, or enslaved by the past, then you have forgotten yo...
详细信息
ISBN:
(纸本)9781595937865
When considering the past or the future, dear apprentice, be mindful of the present. If, while considering the past, you become caught in the past, lost in the past, or enslaved by the past, then you have forgotten yourself in the present. If, while considering the future, you become caught in the future, lost in the future, or enslaved by the future, then you have forgotten yourself in the present. Conversely, when considering the past, if you do not become caught, lost, or enslaved by the past, then you have remained mindful of the present. And if, when considering the future, you do not become caught, lost, or enslaved in the future, then you have remained mindful of the present.
暂无评论