VI-Attached Database Storage - Purdue University :: Computer
... In this paper, we study the feasibility of leveraging VI–based communication to improve I/O performance and scalability for storage–centric applications and in particular database applications executing real–world online transaction processing loads. An important issue in database systems is the ov ...
... In this paper, we study the feasibility of leveraging VI–based communication to improve I/O performance and scalability for storage–centric applications and in particular database applications executing real–world online transaction processing loads. An important issue in database systems is the ov ...
SQL - MIT5314
... ??? How Much of a RAM/Storage Savings is there ??? We only work with single tables The largest table is Class: ...
... ??? How Much of a RAM/Storage Savings is there ??? We only work with single tables The largest table is Class: ...
SQL: Queries, Programming, Triggers
... Sometimes a relational database schema is developed directly without going through the ...
... Sometimes a relational database schema is developed directly without going through the ...
Elmasri/Navathe, Fundamentals of Database Systems, Fourth Edition
... Copyright © 2004 Ramez Elmasri and Shamkant Navathe ...
... Copyright © 2004 Ramez Elmasri and Shamkant Navathe ...
SQL Presentation (Lloyd, Zukowski
... • SQL Must be embedded in a programming language, or used with a 4GL like VB ...
... • SQL Must be embedded in a programming language, or used with a 4GL like VB ...
Elmasri/Navathe, Fundamentals of Database Systems, Fourth Edition
... Copyright © 2004 Ramez Elmasri and Shamkant Navathe ...
... Copyright © 2004 Ramez Elmasri and Shamkant Navathe ...
Best Practices for Data Definitions - Cont`d
... Used to develop and test new features and functionality – Contains DB objects that are not yet available in production – As a consequence, dev environments are NOT CLEAN (!) and contain objects that should NOT make it to production Copyright © 2005-2006 SQL Farms, Inc. All Rights Reserved. ...
... Used to develop and test new features and functionality – Contains DB objects that are not yet available in production – As a consequence, dev environments are NOT CLEAN (!) and contain objects that should NOT make it to production Copyright © 2005-2006 SQL Farms, Inc. All Rights Reserved. ...
Planning a Windows Azure virtual machine configuration for optimal
... volumes are not persistent. In other words, any data on them may be lost if your virtual machine is restarted. Temporary disk volumes are shared across all other VMs running on the same host. Important note: Proper configuration of your Windows Azure disks (operating system and data) is one of the m ...
... volumes are not persistent. In other words, any data on them may be lost if your virtual machine is restarted. Temporary disk volumes are shared across all other VMs running on the same host. Important note: Proper configuration of your Windows Azure disks (operating system and data) is one of the m ...
Proceedings
... makes it especially attractive for companies that want to adopt SPL technology for their products. In the FAME-DBMS project, we chose this approach to compare downsized versions with the original application which makes it useful as a research benchmark. In a non-trivial case study we refactored the ...
... makes it especially attractive for companies that want to adopt SPL technology for their products. In the FAME-DBMS project, we chose this approach to compare downsized versions with the original application which makes it useful as a research benchmark. In a non-trivial case study we refactored the ...
Elmasri/Navathe, Fundamentals of Database Systems, Fourth
... Copyright © 2004 Ramez Elmasri and Shamkant Navathe ...
... Copyright © 2004 Ramez Elmasri and Shamkant Navathe ...
ASP.NET Programming with C# and SQL Server First Edition
... • Use the State property of the SqlConnection class to determine the current status of the database connection • Use the SqlException class to handle errors • Use the SqlCommand class to execute commands against SQL Server • Use the ExecuteReader() method with a DataReader object to retrieve data fr ...
... • Use the State property of the SqlConnection class to determine the current status of the database connection • Use the SqlException class to handle errors • Use the SqlCommand class to execute commands against SQL Server • Use the ExecuteReader() method with a DataReader object to retrieve data fr ...
Introduction to Relational Databases and SQL
... give you a data dump. SQL gives you sophisticated tools to summarize, consolidate, and calculate from the data. Using table relationships, data can be combined from multiple tables in a number of ways. With a properly designed database, SQL can answer practically any question about the data. Second, ...
... give you a data dump. SQL gives you sophisticated tools to summarize, consolidate, and calculate from the data. Using table relationships, data can be combined from multiple tables in a number of ways. With a properly designed database, SQL can answer practically any question about the data. Second, ...
Document
... columns are nonetheless included in the result table • as opposed to inner join, in which rows must have matching values in order to appear in the result table • Customer record created but the customer has yet to place an order ...
... columns are nonetheless included in the result table • as opposed to inner join, in which rows must have matching values in order to appear in the result table • Customer record created but the customer has yet to place an order ...
Chapter 21:Application Development and Administration
... set buffer size to avoid paging of buffer ...
... set buffer size to avoid paging of buffer ...
SQL Server DB Design Guidelines
... - Reliability and longevity are comparable/at least as good as HDDs. 8-10 year life (at data rate of 2 TB/day an industry ~standard for 80 GB drives). Specifically, P(undetected bad data) = EE-20, P(lost data) = EE-30. Also, since the thing monitors itself, it will wear out gradually, and show you/s ...
... - Reliability and longevity are comparable/at least as good as HDDs. 8-10 year life (at data rate of 2 TB/day an industry ~standard for 80 GB drives). Specifically, P(undetected bad data) = EE-20, P(lost data) = EE-30. Also, since the thing monitors itself, it will wear out gradually, and show you/s ...
Best Practices for protecting Microsoft SQL Server
... database backup before performing a differential or Transaction log backup. Transaction Logs Transaction logs are not backed up during full or differential database backups. You must back them up by running separate Transaction log backups or using the Backup Transaction Log After Database option. T ...
... database backup before performing a differential or Transaction log backup. Transaction Logs Transaction logs are not backed up during full or differential database backups. You must back them up by running separate Transaction log backups or using the Backup Transaction Log After Database option. T ...
Visual Studio Development Lifecycle
... • Detects performance issues in an application’s use of the database under load • Use it when you have a running app with a load • Requirements – SYSDBA – Oracle Database license for Oracle Diagnostic Pack ...
... • Detects performance issues in an application’s use of the database under load • Use it when you have a running app with a load • Requirements – SYSDBA – Oracle Database license for Oracle Diagnostic Pack ...
PL/SQL
... Declared in the SQL “Host Environment” Remain active for the length of the SQL Session Can be displayed with the SQL Print Command Can only be accessed in the program when prefaced with a colon (:) ...
... Declared in the SQL “Host Environment” Remain active for the length of the SQL Session Can be displayed with the SQL Print Command Can only be accessed in the program when prefaced with a colon (:) ...
Oracle Database: Develop PL/SQL Program Units
... Apply declaring identifiers and trapping exceptions. Create PL/SQL blocks of application code that can be shared by multiple forms, reports and data management applications. ...
... Apply declaring identifiers and trapping exceptions. Create PL/SQL blocks of application code that can be shared by multiple forms, reports and data management applications. ...
Fujitsu White Paper Picture
... These are the very strengths that set BS2000 database systems and the openUTM transaction processing platform apart. To fit the increasing requirements from customers the BS2000 database systems and openUTM are enhanced continuously. 4.1 Overview Database systems or DBMS (Database Management Systems ...
... These are the very strengths that set BS2000 database systems and the openUTM transaction processing platform apart. To fit the increasing requirements from customers the BS2000 database systems and openUTM are enhanced continuously. 4.1 Overview Database systems or DBMS (Database Management Systems ...
SQL Server 2000 OLTP best practices
... Zero costs plans can fill up cache quickly with high volume dynamic transactions SQL 2005 plan cache changes resulting in Out of Memory errors Worse performance on 64-bit vs. 32-bit platform Worse performance on SQL 2005 vs. SQL 2000 ...
... Zero costs plans can fill up cache quickly with high volume dynamic transactions SQL 2005 plan cache changes resulting in Out of Memory errors Worse performance on 64-bit vs. 32-bit platform Worse performance on SQL 2005 vs. SQL 2000 ...
SEAS VLDB - Microsoft
... Manage large files from several external customers / day Load millions of rows from multiple files and run batch reporting at the same time How do I manage different SLAs from different customers with same system. ...
... Manage large files from several external customers / day Load millions of rows from multiple files and run batch reporting at the same time How do I manage different SLAs from different customers with same system. ...
Java Database Connectivity (JDBC)
... • Programs developed with Java/JDBC are platform and vendor independent. • “write once, compile once, run anywhere” • Write apps in java to access any DB, using standard SQL statements – while still following Java conventions. • JDBC driver manager and JDBC drivers provide the bridge between the dat ...
... • Programs developed with Java/JDBC are platform and vendor independent. • “write once, compile once, run anywhere” • Write apps in java to access any DB, using standard SQL statements – while still following Java conventions. • JDBC driver manager and JDBC drivers provide the bridge between the dat ...
SAS® PASSTHRU to Microsoft SQL Server using ODBC
... SAS/ACCESS Interface to ODBC is popular because it is cost-effective to license this one product instead of one for each of your multiple DBMS sources. You can even use ODBC to access Excel spreadsheets if you do not have a license for SAS/ACCESS Interface to PC File Formats or operate outside of Wi ...
... SAS/ACCESS Interface to ODBC is popular because it is cost-effective to license this one product instead of one for each of your multiple DBMS sources. You can even use ODBC to access Excel spreadsheets if you do not have a license for SAS/ACCESS Interface to PC File Formats or operate outside of Wi ...
Tandem Computers
Tandem Computers, Inc. was the dominant manufacturer of fault-tolerant computer systems for ATM networks, banks, stock exchanges, telephone switching centers, and other similar commercial transaction processing applications requiring maximum uptime and zero data loss. The company was founded in 1974 and remained independent until 1997. It is now a server division within Hewlett Packard.Tandem's NonStop systems use a number of independent identical processors and redundant storage devices and controllers to provide automatic high-speed ""failover"" in the case of a hardware or software failure. To contain the scope of failures and of corrupted data, these multi-computer systems have no shared central components, not even main memory. Conventional multi-computer systems all use shared memories and work directly on shared data objects. Instead, NonStop processors cooperate by exchanging messages across a reliable fabric, and software takes periodic snapshots for possible rollback of program memory state.Besides handling failures well, this ""shared-nothing"" messaging system design also scales extremely well to the largest commercial workloads. Each doubling of the total number of processors would double system throughput, up to the maximum configuration of 4000 processors. In contrast, the performance of conventional multiprocessor systems is limited by the speed of some shared memory, bus, or switch. Adding more than 4–8 processors that way gives no further system speedup. NonStop systems have more often been bought to meet scaling requirements than for extreme fault tolerance. They compete well against IBM's largest mainframes, despite being built from simpler minicomputer technology.