Chapter 15-17: Transaction Management
... Advantages are: 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. ...
... Advantages are: 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. ...
In-memory Computing—Evolution, Opportunity and Risk
... for quite some time. Today, the big data trend is compelling enterprises to mine their large internal hoard of data. The additional insight provided by mining this information can be invaluable for creating an enhanced user experience. The use cases, which require fast processing turnaround times, c ...
... for quite some time. Today, the big data trend is compelling enterprises to mine their large internal hoard of data. The additional insight provided by mining this information can be invaluable for creating an enhanced user experience. The use cases, which require fast processing turnaround times, c ...
The Anatomy of a Data Modification
... locked we will wait until ALL locks have been acquired before we can proceed. In the case of this update (because it’s highly selective and because indexes exist to make this possible) SQL Server will use row level locking. The rows are locked but there are also “intent” locks at higher levels to ma ...
... locked we will wait until ALL locks have been acquired before we can proceed. In the case of this update (because it’s highly selective and because indexes exist to make this possible) SQL Server will use row level locking. The rows are locked but there are also “intent” locks at higher levels to ma ...
DWMS: Data Warehouse Management System
... originally stored in Database(s). For optimally utilizing the concept, however; fundamental data warehousing differences between Database and Data Warehouse such as current vs. historical data, large volume vs. very large volume data, mission critical vs. decision support application, etc. must be r ...
... originally stored in Database(s). For optimally utilizing the concept, however; fundamental data warehousing differences between Database and Data Warehouse such as current vs. historical data, large volume vs. very large volume data, mission critical vs. decision support application, etc. must be r ...
Client/Server Databases And The Oracle9i Relational Database
... – You create relationships that link related data using key fields • A database system consists of – DBMS: manages the physical data storage – Database applications: provide the user interface to the database • Many database systems use a client/server architecture – DBMS runs as a server process – ...
... – You create relationships that link related data using key fields • A database system consists of – DBMS: manages the physical data storage – Database applications: provide the user interface to the database • Many database systems use a client/server architecture – DBMS runs as a server process – ...
Advanced Querying
... select title, author, pub_name, pub_branch, set(keyword) as keyword-list from flat-books groupby title, author, pub_name, pub_branch ...
... select title, author, pub_name, pub_branch, set(keyword) as keyword-list from flat-books groupby title, author, pub_name, pub_branch ...
Introduction to Database Design
... Data is now shared, if a failure occurs, many users are impacted ...
... Data is now shared, if a failure occurs, many users are impacted ...
ORM - Webcourse
... • Persistence is the ability of an object to survive the lifecycle of the process, in which it resides. it is a desired feature in most nontrivial applications. Persistence implies that data lives longer than objects. When the program is stopped/restarted, the data from last execution is readi ...
... • Persistence is the ability of an object to survive the lifecycle of the process, in which it resides. it is a desired feature in most nontrivial applications. Persistence implies that data lives longer than objects. When the program is stopped/restarted, the data from last execution is readi ...
Basic Database Concepts - University of Manitoba
... system (security, access, etc.). DBMS Product (a specific DBMS software; same as “DBMS Brand”). Database System (DBMS Application, Application)*: An implementation of a DBMS product including one or more databases, logic (business rules), some code, and user interface. Supporting various inf ...
... system (security, access, etc.). DBMS Product (a specific DBMS software; same as “DBMS Brand”). Database System (DBMS Application, Application)*: An implementation of a DBMS product including one or more databases, logic (business rules), some code, and user interface. Supporting various inf ...
IR in P2P, relational data, OpenURL, and full
... • “The Open Directory Project is the largest, most comprehensive human-edited directory of the Web. It is constructed and maintained by a vast, global community of volunteer editors.” • Claim that there is a historic precedence in the ...
... • “The Open Directory Project is the largest, most comprehensive human-edited directory of the Web. It is constructed and maintained by a vast, global community of volunteer editors.” • Claim that there is a historic precedence in the ...
18: Database System Architectures
... Implementation Issues for Distributed Databases Atomicity needed even for transactions that update data at multiple ...
... Implementation Issues for Distributed Databases Atomicity needed even for transactions that update data at multiple ...
Chapter 1
... An entity-relationship (E-R) diagram represents a database pictorially Database management system (DBMS) - a program, or a collection of programs, through which users interact with a database ...
... An entity-relationship (E-R) diagram represents a database pictorially Database management system (DBMS) - a program, or a collection of programs, through which users interact with a database ...
Slides
... Search similarities between query sequences and sequence database Predict structures and functions of new sequences ...
... Search similarities between query sequences and sequence database Predict structures and functions of new sequences ...
ppt
... • Transactions that have written their commit entry in the log must also have recorded all their write operations in the log; otherwise they would not be committed, so their effect on the database can be redone from the log entries. (Notice that the log file must be kept on disk. • At the time of a ...
... • Transactions that have written their commit entry in the log must also have recorded all their write operations in the log; otherwise they would not be committed, so their effect on the database can be redone from the log entries. (Notice that the log file must be kept on disk. • At the time of a ...
Developing a Database
... Databases • Long-term perspective – without databases, most data do not outlive project that collected them – goal: data that is accessible and interpretable 20-years in the future • technological - need persistent media that does not become technologically obsolete • contextual - need to capture co ...
... Databases • Long-term perspective – without databases, most data do not outlive project that collected them – goal: data that is accessible and interpretable 20-years in the future • technological - need persistent media that does not become technologically obsolete • contextual - need to capture co ...
Chapter 43 – Relational databases
... Suggest foreign keys that could be used to create the relationships. Client ID and Engineer ID Identify four other attributes that the company may store. Client’s details such as company name, address, contact details, make of copier. Engineer details such as name and address. Job details, such as t ...
... Suggest foreign keys that could be used to create the relationships. Client ID and Engineer ID Identify four other attributes that the company may store. Client’s details such as company name, address, contact details, make of copier. Engineer details such as name and address. Job details, such as t ...
chap07
... Understand the need for programming languages Understand database management systems (DBMSs) Install and test DBMSs Understand the Web-based programming environment Program with databases ...
... Understand the need for programming languages Understand database management systems (DBMSs) Install and test DBMSs Understand the Web-based programming environment Program with databases ...