No Slide Title
... complex queries, write query as a sequential program consisting of a series of assignments followed by an expression whose value is displayed as a result of the query. Assignment must always be made to a temporary relation variable. Example: Write r s as ...
... complex queries, write query as a sequential program consisting of a series of assignments followed by an expression whose value is displayed as a result of the query. Assignment must always be made to a temporary relation variable. Example: Write r s as ...
Study Guide for Midterm 2, PPT - Department of Computer Science
... It is possible for tuples to have a null value, denoted by null, for ...
... It is possible for tuples to have a null value, denoted by null, for ...
Accelerate EDB Postgres Advanced Server
... are essential to meet the needs of today’s business challenges. At the same time, enterprises are looking for cost-effective, open-architecture, industry-standard solutions that don’t include vendor lock-in or carry the high price tag attached to proprietary solutions. HPE ProLiant servers with the ...
... are essential to meet the needs of today’s business challenges. At the same time, enterprises are looking for cost-effective, open-architecture, industry-standard solutions that don’t include vendor lock-in or carry the high price tag attached to proprietary solutions. HPE ProLiant servers with the ...
Banner Enterprise Data Warehouse / Installation Guide / 8.3
... configuration file for OMBPlus is named params.tcl. This driver TCL script contains calls to other scripts that define global variables and procedures used by the various BPRA TCL scripts for installation and configuration of the BPRA OWB components. These scripts are delivered in the “owb” director ...
... configuration file for OMBPlus is named params.tcl. This driver TCL script contains calls to other scripts that define global variables and procedures used by the various BPRA TCL scripts for installation and configuration of the BPRA OWB components. These scripts are delivered in the “owb” director ...
ppt
... Heuristic Optimization Cost-based optimization is expensive, even with dynamic programming. Systems may use heuristics to reduce the number of choices that must ...
... Heuristic Optimization Cost-based optimization is expensive, even with dynamic programming. Systems may use heuristics to reduce the number of choices that must ...
Planned/Unplanned downtime & Runtime Load balancing
... » Session Draining: When the targeted instance is brought down for maintenance, ensure that all work completes. We will describe how to drain sessions without impacting in-flight work and also avoid logon storms on active instance(s) during the planned maintenance. » Unplanned Downtimes: » Outage de ...
... » Session Draining: When the targeted instance is brought down for maintenance, ensure that all work completes. We will describe how to drain sessions without impacting in-flight work and also avoid logon storms on active instance(s) during the planned maintenance. » Unplanned Downtimes: » Outage de ...
Chapter 2: Entity-Relationship Model
... Relationship R between entity sets A, B and C can be represented using a new entity set E, and three relationships RA, RB and RC between E and A, B and C respectively For each relationship in R, we create a new entity in E, and relate it to the corresponding entities in A, B and C We need to c ...
... Relationship R between entity sets A, B and C can be represented using a new entity set E, and three relationships RA, RB and RC between E and A, B and C respectively For each relationship in R, we create a new entity in E, and relate it to the corresponding entities in A, B and C We need to c ...
Understanding and Selecting a Database Encryption
... Once you have decided which method is suitable, we need to examine the basic technology variables that affect your database system and operations. Your selection controls how much of an impact it will have on applications, database performance, and so on. With any form of database encryption there a ...
... Once you have decided which method is suitable, we need to examine the basic technology variables that affect your database system and operations. Your selection controls how much of an impact it will have on applications, database performance, and so on. With any form of database encryption there a ...
Query From Examples: An Iterative, Data-Driven
... recent research efforts to help users with query construction. One approach is to provide a repository for users to share their queries and facilitate browsing for similar queries that can be reused, possibly with minor modifications [10, 13]. For example, SDSS maintains a sample of popular user que ...
... recent research efforts to help users with query construction. One approach is to provide a repository for users to share their queries and facilitate browsing for similar queries that can be reused, possibly with minor modifications [10, 13]. For example, SDSS maintains a sample of popular user que ...
Referential Integrity Is Important For Databases
... users or applications from entering inconsistent data. Most RDBMS’s have various referential integrity rules that you can apply when you create a relationship between two tables.” [6] • “[Referential integrity is] a database management safeguard that ensures every foreign key matches a primary key. ...
... users or applications from entering inconsistent data. Most RDBMS’s have various referential integrity rules that you can apply when you create a relationship between two tables.” [6] • “[Referential integrity is] a database management safeguard that ensures every foreign key matches a primary key. ...
Database Slicing on Relational Databases
... of a statement in the program source code. This latter type of slicing is called forward slicing. The program slicing of database-driven applications introduces new problems. The statements responsible for handling data in the database are often not present in the output of a slicing procedure; howe ...
... of a statement in the program source code. This latter type of slicing is called forward slicing. The program slicing of database-driven applications introduces new problems. The statements responsible for handling data in the database are often not present in the output of a slicing procedure; howe ...
13. Query Optimization
... set bestplan[S].plan and bestplan[S].cost based on the best way of accessing S /* Using selections on S and indices on S */ else for each non-empty subset S1 of S such that S1 S ...
... set bestplan[S].plan and bestplan[S].cost based on the best way of accessing S /* Using selections on S and indices on S */ else for each non-empty subset S1 of S such that S1 S ...
Upgrade from Oracle9i to Oracle Database 11g
... SQL Tuning Advisor and Automatic SQL Tuning..............................................34 Test run 6 – SQL Tuning Advisor and Automatic SQL Tuning .............................................37 ...
... SQL Tuning Advisor and Automatic SQL Tuning..............................................34 Test run 6 – SQL Tuning Advisor and Automatic SQL Tuning .............................................37 ...
Unle ashing the Full Potenti alof the ORA CL E DBMS byLever
... Benefit: Direct access to X$ fixed tables makes it possible to get microsecond resolution for wait events without the need to enable SQL trace. Furthermore, an enhanced version of V$SESSION_WAIT, which combines information from V$SESSION, V$SESSION_WAIT and V$PROCESS and is easier to interpret, may ...
... Benefit: Direct access to X$ fixed tables makes it possible to get microsecond resolution for wait events without the need to enable SQL trace. Furthermore, an enhanced version of V$SESSION_WAIT, which combines information from V$SESSION, V$SESSION_WAIT and V$PROCESS and is easier to interpret, may ...
A Workflow to Support Forensic Database Analysis
... Governments and private organisations are increasingly aware that vital information stored in their databases is no longer safe behind perimeter firewalls, intrusion prevention systems and other edge protections. Databases store a broad range of private and important information, making them a prime ...
... Governments and private organisations are increasingly aware that vital information stored in their databases is no longer safe behind perimeter firewalls, intrusion prevention systems and other edge protections. Databases store a broad range of private and important information, making them a prime ...
SQL - La Salle University
... A trigger is always invoked before or after a data row is selected, inserted, or updated. ...
... A trigger is always invoked before or after a data row is selected, inserted, or updated. ...
DBA Guide to Databases on VMware
... a heavy load on the hypervisor. Even for this difficult workload, a single virtual machine in VMware vSphere running Oracle 11g and Linux achieved 85 percent of native performance with near-linear scalability from one virtual CPU to eight virtual CPUs. The virtual machine supported 8,900 transaction ...
... a heavy load on the hypervisor. Even for this difficult workload, a single virtual machine in VMware vSphere running Oracle 11g and Linux achieved 85 percent of native performance with near-linear scalability from one virtual CPU to eight virtual CPUs. The virtual machine supported 8,900 transaction ...
Final Thesis - Computer Science
... and scalability tests, which of the two Database Management Systems (Oracle 9i or SQL Server 2000) performs and scales better than the other under certain specified conditions. For this project the author only considered performance and scalability of the DBMS, other aspects like database security, ...
... and scalability tests, which of the two Database Management Systems (Oracle 9i or SQL Server 2000) performs and scales better than the other under certain specified conditions. For this project the author only considered performance and scalability of the DBMS, other aspects like database security, ...
mod-5
... add the resulting functional dependencies to F + for each pair of functional dependencies f1and f2 in F + if f1 and f2 can be combined using transitivity then add the resulting functional dependency to F + until F + does not change any further NOTE: We shall see an alternative procedure for this tas ...
... add the resulting functional dependencies to F + for each pair of functional dependencies f1and f2 in F + if f1 and f2 can be combined using transitivity then add the resulting functional dependency to F + until F + does not change any further NOTE: We shall see an alternative procedure for this tas ...
SQL_Server_AlwaysOn_-_Full
... Allows databases isolation Remove dependecies from instance objects It’s a databases level property Only partial support in SQL Server 2012 DMV/Extended Event to find non contained entities ...
... Allows databases isolation Remove dependecies from instance objects It’s a databases level property Only partial support in SQL Server 2012 DMV/Extended Event to find non contained entities ...
accessing databases with jdbc - Core Servlets and JavaServer Pages
... can use a Statement object to create parameterized queries by which values are supplied to a precompiled fixed-format query. See Section 17.4 (Using Prepared Statements) for details. ...
... can use a Statement object to create parameterized queries by which values are supplied to a precompiled fixed-format query. See Section 17.4 (Using Prepared Statements) for details. ...
Evaluating and Comparing Oracle Database Appliance X6
... The Oracle Database Appliance saves time and money by simplifying deployment, maintenance, and support of database solutions for organizations of every size. Optimized for the world’s most popular database—Oracle Database—it integrates software, compute, storage, and network resources to deliver dat ...
... The Oracle Database Appliance saves time and money by simplifying deployment, maintenance, and support of database solutions for organizations of every size. Optimized for the world’s most popular database—Oracle Database—it integrates software, compute, storage, and network resources to deliver dat ...
Transaction Management
... The objective of concurrency control is to maximise transaction throughput while preventing interference among multiple users. Transaction throughput is the number of transactions processed per unit of time, is a measure of the amount of work performed by the DBMS. More than one million transactions ...
... The objective of concurrency control is to maximise transaction throughput while preventing interference among multiple users. Transaction throughput is the number of transactions processed per unit of time, is a measure of the amount of work performed by the DBMS. More than one million transactions ...
SQL Server 2005 Security Overview for
... Further, the most secure installation will be on one or more NTFS partitions. Once the environment is secure, it is critical to install SQL Server 2005 securely. The installation program does all the usual installation tasks, and has a nice new System Configuration Checker that notifies you of any d ...
... Further, the most secure installation will be on one or more NTFS partitions. Once the environment is secure, it is critical to install SQL Server 2005 securely. The installation program does all the usual installation tasks, and has a nice new System Configuration Checker that notifies you of any d ...