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Automatic partitioning of database applications
... ployed on the application server and the other in the database server as stored procedures. The two programs communicate with each other via remote procedure calls (RPCs) to implement the semantics of the original application. In order to generate a partition, Pyxis first analyzes application sourc ...
... ployed on the application server and the other in the database server as stored procedures. The two programs communicate with each other via remote procedure calls (RPCs) to implement the semantics of the original application. In order to generate a partition, Pyxis first analyzes application sourc ...
Resource Control for Java Database Extensions
... UDFs. The main observation was that although Java UDFs are efficient, they do not solve all the security problems that arise when a server accepts untrusted extensions. Specifically, short of creating a process per UDF, there is no suitable mechanism to prevent one UDF from allocating large amounts ...
... UDFs. The main observation was that although Java UDFs are efficient, they do not solve all the security problems that arise when a server accepts untrusted extensions. Specifically, short of creating a process per UDF, there is no suitable mechanism to prevent one UDF from allocating large amounts ...
Proceedings Template - WORD - School of Electronic Engineering
... Extend database models with probability theory in order to create a retrieval platform possessing the advantages and expressiveness of database models, and the aggregation of uncertain evidence as defined by probability theory. ...
... Extend database models with probability theory in order to create a retrieval platform possessing the advantages and expressiveness of database models, and the aggregation of uncertain evidence as defined by probability theory. ...
Chapter 15-17: Transaction Management
... increased processor and disk utilization, leading to better transaction throughput E.g. one transaction can be using the CPU while another is reading from or writing to the disk reduced average response time for transactions: short transactions need not wait behind long ones. Concurrency con ...
... increased processor and disk utilization, leading to better transaction throughput E.g. one transaction can be using the CPU while another is reading from or writing to the disk reduced average response time for transactions: short transactions need not wait behind long ones. Concurrency con ...
Backup and Recovery of SQL Anywhere, Tips and Techniques Joshua Savill
... SQL Anywhere backup tools are capable of handling database transactions during the running of a backup 3rd party backup vendors potentially do not have the proprietary understanding of how the SQL Anywhere database file works or use the correct tools when doing a backup A backup of a database ...
... SQL Anywhere backup tools are capable of handling database transactions during the running of a backup 3rd party backup vendors potentially do not have the proprietary understanding of how the SQL Anywhere database file works or use the correct tools when doing a backup A backup of a database ...
(A) R - Avi Silberschatz
... All functional dependencies in D+ that include only attributes of Ri All multivalued dependencies of the form Ri where Ri and is in D+ The decomposition is dependency-preserving with ...
... All functional dependencies in D+ that include only attributes of Ri All multivalued dependencies of the form Ri where Ri and is in D+ The decomposition is dependency-preserving with ...
Unity Connection Provisioning API
... • SQL Exception codes (and messages) are returned by API • CUC stored procedures have well defined user exception codes • SQL exceptions will come back – constraint names are consistent • csp_GetErrorText can be used to return localized error messages for some common situations. ...
... • SQL Exception codes (and messages) are returned by API • CUC stored procedures have well defined user exception codes • SQL exceptions will come back – constraint names are consistent • csp_GetErrorText can be used to return localized error messages for some common situations. ...
Automatic Partitioning of Database Applications
... ployed on the application server and the other in the database server as stored procedures. The two programs communicate with each other via remote procedure calls (RPCs) to implement the semantics of the original application. In order to generate a partition, Pyxis first analyzes application source ...
... ployed on the application server and the other in the database server as stored procedures. The two programs communicate with each other via remote procedure calls (RPCs) to implement the semantics of the original application. In order to generate a partition, Pyxis first analyzes application source ...
Altiris eXpress Helpdesk API Overview
... The classes generally represent the major functional objects of Helpdesk: work items, contacts, managed objects, bulletins, email messages, etc. However there are exceptions that will be explained below in the Using AeXADOHelpdesk Classes section. One exception we mention here are the classes that p ...
... The classes generally represent the major functional objects of Helpdesk: work items, contacts, managed objects, bulletins, email messages, etc. However there are exceptions that will be explained below in the Using AeXADOHelpdesk Classes section. One exception we mention here are the classes that p ...
Client/Server Computing
... also has the effect of reducing the load on the network that connects the workstation; instead of sending the entire database file back and forth on the wire, the network traffic is reduced to queries to and responses from the database server. Some database servers can even store and run procedures ...
... also has the effect of reducing the load on the network that connects the workstation; instead of sending the entire database file back and forth on the wire, the network traffic is reduced to queries to and responses from the database server. Some database servers can even store and run procedures ...
Chapter 6: Database Recovery Techniques.
... At commit point under WAL scheme these updates are saved on database disk. After reboot from a failure the log is used to redo all the transactions affected by this failure. No undo is required because no AFIM is flushed to the disk before a transaction commits. ...
... At commit point under WAL scheme these updates are saved on database disk. After reboot from a failure the log is used to redo all the transactions affected by this failure. No undo is required because no AFIM is flushed to the disk before a transaction commits. ...
PowerPoint Template - exercise
... RDBMS provide well-proven, robust, reliable mechanisms for managing data 1) Portability. Relational model uses SQL to access the data. SQL language is well standardized and is largely the same across different database vendors. If you know how to write SQLs for Oracle, for example, you'll be able to ...
... RDBMS provide well-proven, robust, reliable mechanisms for managing data 1) Portability. Relational model uses SQL to access the data. SQL language is well standardized and is largely the same across different database vendors. If you know how to write SQLs for Oracle, for example, you'll be able to ...
CODESOFT 2014 - Tutorial
... In this chapter we are going to link a label (the container) with a database (the content). To do this, we will use ODBC (Open DataBase Connectivity) or OLE DB connections. Databases allow you to store data. All data is organized into two-dimensional tables in what is called a relationship. Each row ...
... In this chapter we are going to link a label (the container) with a database (the content). To do this, we will use ODBC (Open DataBase Connectivity) or OLE DB connections. Databases allow you to store data. All data is organized into two-dimensional tables in what is called a relationship. Each row ...
Document
... • “Snapshot too old” error occurs if: – The inserted transaction list in the block being queried has been reused, and the SCN in the block is newer than the SCN at the start of the query – The transaction slot in the rollback segment header has been reused – The undo data in the rollback segment has ...
... • “Snapshot too old” error occurs if: – The inserted transaction list in the block being queried has been reused, and the SCN in the block is newer than the SCN at the start of the query – The transaction slot in the rollback segment header has been reused – The undo data in the rollback segment has ...
Skew-aware automatic database partitioning in shared - H
... receive the two-phase commit messages. These results also show that the performance repercussions of distributed transactions increases relative to the number of partitions because the system must wait for messages from more nodes. Therefore, a design that minimizes both the number of distributed tr ...
... receive the two-phase commit messages. These results also show that the performance repercussions of distributed transactions increases relative to the number of partitions because the system must wait for messages from more nodes. Therefore, a design that minimizes both the number of distributed tr ...
An Integrated Approach to Recovery and High Availability in an Updatable, Distributed Data Warehouse
... and do not deal with Byzantine failures. We do not deal with network partitions, corrupted data, or incompletely written disk pages. We also assume reliable network transfers via a protocol such as TCP. ...
... and do not deal with Byzantine failures. We do not deal with network partitions, corrupted data, or incompletely written disk pages. We also assume reliable network transfers via a protocol such as TCP. ...
Tips and Tricks - AppDynamics Documentation
... the time, and which have high CXPACKET wait. Once these have been identified, drill-down to establish which individual SQL's the wait is on. Once isolated, use a tool such as the SQL Server Index Tuning Wizard to check for missing indexes, or out of date statistics. Fix if possible. This was the pro ...
... the time, and which have high CXPACKET wait. Once these have been identified, drill-down to establish which individual SQL's the wait is on. Once isolated, use a tool such as the SQL Server Index Tuning Wizard to check for missing indexes, or out of date statistics. Fix if possible. This was the pro ...
Design and Evaluation of Architectures for Commercial Applications
... Significant I/O requirements Extensive/complex interactions with the operating system Require robustness and resiliency to failures ...
... Significant I/O requirements Extensive/complex interactions with the operating system Require robustness and resiliency to failures ...
Why and Where: A Characterization of Data Provenance*
... number is incorrect in the view.) It is also important for carrying annotations through database queries. Therefore as a basis for describing where-provenance, we use the data model proposed in [6] in which there is an explicit notion of location. The model has the advantage that it allows us to stu ...
... number is incorrect in the view.) It is also important for carrying annotations through database queries. Therefore as a basis for describing where-provenance, we use the data model proposed in [6] in which there is an explicit notion of location. The model has the advantage that it allows us to stu ...
Chapter 7: Relational Database Design
... order between them. If li and lj are consecutive in a schedule and they do not conflict, their results would remain the same even if they had been interchanged in the schedule. ...
... order between them. If li and lj are consecutive in a schedule and they do not conflict, their results would remain the same even if they had been interchanged in the schedule. ...
Dynamic Test Input Generation for Database
... obtained may be low. Second, database applications are multi-lingual: usually, an imperative program implements the application logic, and makes declarative SQL queries to the database. Therefore, the test input generation algorithm must faithfully model the semantics of both languages and analyze t ...
... obtained may be low. Second, database applications are multi-lingual: usually, an imperative program implements the application logic, and makes declarative SQL queries to the database. Therefore, the test input generation algorithm must faithfully model the semantics of both languages and analyze t ...
Versant Object Database
![](https://commons.wikimedia.org/wiki/Special:FilePath/Versant_logo_2007.png?width=300)
Versant Object Database (VOD) is an object database software product developed by Versant Corporation.The Versant Object Database enables developers using object oriented languages to transactionally store their information by allowing the respective language to act as the Data Definition Language (DDL) for the database. In other words, the memory model is the database schema model.In general, persistence in VOD in implemented by declaring a list of classes, then providing a transaction demarcation application programming interface to use cases. Respective language integrations adhere to the constructs of that language, including syntactic and directive sugars.Additional APIs exist, beyond simple transaction demarcation, providing for the more advanced capabilities necessary to address practical issues found when dealing with performance optimization and scalability for systems with large amounts of data, many concurrent users, network latency, disk bottlenecks, etc.