Chapter 1 - School of Computing & Software Engineering
... include code for the metadata of each file Each application program must have its own processing routines for reading, inserting, updating, and deleting data Lack of coordination and central control Non-standard file formats ...
... include code for the metadata of each file Each application program must have its own processing routines for reading, inserting, updating, and deleting data Lack of coordination and central control Non-standard file formats ...
Persistent Programming Languages
... • The term message does not necessarily imply physical message passing. Messages can be implemented as procedure invocations. • Methods are programs written in a general-purpose language with the following features – only variables in the object itself may be referenced directly – data in other obje ...
... • The term message does not necessarily imply physical message passing. Messages can be implemented as procedure invocations. • Methods are programs written in a general-purpose language with the following features – only variables in the object itself may be referenced directly – data in other obje ...
Database systems in 21 minutes database: a structured collection of data
... count • extract desired info by queries • query processing figures out what info comes from what tables, extracts it efficiently ...
... count • extract desired info by queries • query processing figures out what info comes from what tables, extracts it efficiently ...
SCHEME OF INSTRUCTION & EXAMINATION
... To acquire an understanding of the issues in distributed systems To study architectures and working of distributed file systems To expose the students to distributed transaction management, security issues and replication Course Outcomes: Students would be able to describe the problems and challenge ...
... To acquire an understanding of the issues in distributed systems To study architectures and working of distributed file systems To expose the students to distributed transaction management, security issues and replication Course Outcomes: Students would be able to describe the problems and challenge ...
DBMS
... Understand a DBMS and define its components. Understand the architecture of a DBMS and its levels. Distinguish between different database models. Understand the concept of relational database operations on a relation. Use Structured Query Language (SQL) to define simple relations. ©Brooks/Cole, 2003 ...
... Understand a DBMS and define its components. Understand the architecture of a DBMS and its levels. Distinguish between different database models. Understand the concept of relational database operations on a relation. Use Structured Query Language (SQL) to define simple relations. ©Brooks/Cole, 2003 ...
Summarisation for Mobile Databases
... traditional LAN (Imielinski and Badrinath, 1994). Like the LAN, they may provide medium coverage from ten to a few hundred metres and relatively high data rates. Common examples for WLAN are the IEEE 802.11b and 802.11g standards that provide data rates up to 11 Mbps and 54 Mbps, respectively. As a ...
... traditional LAN (Imielinski and Badrinath, 1994). Like the LAN, they may provide medium coverage from ten to a few hundred metres and relatively high data rates. Common examples for WLAN are the IEEE 802.11b and 802.11g standards that provide data rates up to 11 Mbps and 54 Mbps, respectively. As a ...
Since - SLAC Conference Services
... relational model has succeeded for decades as a reasonable compromise between, on one hand, flexibility and representational power and, on the other, limiting the set of operators to permit an optimizer to work well. Object databases and MapReduce systems move further to one side of the spectrum, pe ...
... relational model has succeeded for decades as a reasonable compromise between, on one hand, flexibility and representational power and, on the other, limiting the set of operators to permit an optimizer to work well. Object databases and MapReduce systems move further to one side of the spectrum, pe ...
Relationship Sets
... Relationship sets may involve more than two entity sets. E.g. Suppose employees of a bank may have jobs (responsibilities) at multiple branches, with different jobs at different branches. Then there is a ternary relationship set between entity sets employee, job and branch ...
... Relationship sets may involve more than two entity sets. E.g. Suppose employees of a bank may have jobs (responsibilities) at multiple branches, with different jobs at different branches. Then there is a ternary relationship set between entity sets employee, job and branch ...
Slide 1
... What are the types of validity checks? Check Digit number(s) or character(s) appended to or inserted into a primary key value to confirm accuracy of primary key value ...
... What are the types of validity checks? Check Digit number(s) or character(s) appended to or inserted into a primary key value to confirm accuracy of primary key value ...
Chapter 21
... • begin_transaction: Start of transaction execution. • read or write: Read or write operations on the database items that are executed as part of a transaction. • end_transaction: Specifies end of read and write transaction operations have ended. System may still have to check whether the changes (w ...
... • begin_transaction: Start of transaction execution. • read or write: Read or write operations on the database items that are executed as part of a transaction. • end_transaction: Specifies end of read and write transaction operations have ended. System may still have to check whether the changes (w ...
DSwithDBMS
... of the common database applications available. Your system should have the driver for the database you will be using. For example your Windows system should have the MS Access Driver. There are a number of JDBC drivers available. On the IDE you are using you will install the appropriate ...
... of the common database applications available. Your system should have the driver for the database you will be using. For example your Windows system should have the MS Access Driver. There are a number of JDBC drivers available. On the IDE you are using you will install the appropriate ...
Best-Effort Multimedia Networking Outline
... the end If it does not make sense to do this split your procedures further ...
... the end If it does not make sense to do this split your procedures further ...
Disk and I/O Tuning on SQL Server 2005
... • Backup up to the same physical drive as the databases. • Failing to check for corruption before backup. • Failing to check for successful backup (both the SQL Server Agent job and disk write). • Failing to verify the backup (RESTORE VERIFYONLY). • Failing to test the full restore process. ...
... • Backup up to the same physical drive as the databases. • Failing to check for corruption before backup. • Failing to check for successful backup (both the SQL Server Agent job and disk write). • Failing to verify the backup (RESTORE VERIFYONLY). • Failing to test the full restore process. ...
here
... Problems with Data Redundancy Waste of space to have duplicate data Causes more maintenance headaches The biggest problem: ...
... Problems with Data Redundancy Waste of space to have duplicate data Causes more maintenance headaches The biggest problem: ...
An Interface Between the SAS System and the INFORMIX Database
... column names, and truncate the remaining text at eight characters. If this name had already been used, then a number was substituted for the last character to make the name unique. For example, if there were two variable names in one table that were called tl_temperature_before and tCtemperature_aft ...
... column names, and truncate the remaining text at eight characters. If this name had already been used, then a number was substituted for the last character to make the name unique. For example, if there were two variable names in one table that were called tl_temperature_before and tCtemperature_aft ...
5 Foundations of Business Intelligence: Databases and Information
... • Problem: Detached view of customer base, inadequate sales data. • Solutions: Implement retail information system and database and deploy POS workstations to analyze customer preferences and analyze sales trends. • HP servers and Retail Information System leads to reduced inventory and increased sa ...
... • Problem: Detached view of customer base, inadequate sales data. • Solutions: Implement retail information system and database and deploy POS workstations to analyze customer preferences and analyze sales trends. • HP servers and Retail Information System leads to reduced inventory and increased sa ...
Simple and practical techniques to manage small databases,
... strings (numbers), not character strings (text), there is a 255-character limitation in the number of characters authorized in the cells (if this number is exceeded, some characters can be lost when copied and pasted from one cell to another). Consequently, we have been looking for alternative porta ...
... strings (numbers), not character strings (text), there is a 255-character limitation in the number of characters authorized in the cells (if this number is exceeded, some characters can be lost when copied and pasted from one cell to another). Consequently, we have been looking for alternative porta ...
Introduction to MS Access
... • A collection of related tables is called a database or relational database. • Sometimes you may want the information about Customers and orders they placed. To obtain this information you must have a way to connect records in the customer table to records in the order table. • You connect the reco ...
... • A collection of related tables is called a database or relational database. • Sometimes you may want the information about Customers and orders they placed. To obtain this information you must have a way to connect records in the customer table to records in the order table. • You connect the reco ...
I/O processing
... – API that provides a common language for application programs to access and process SQL databases independent of the particular RDBMS that is accessed – Java Database Connectivity (JDBC) is similar to ODBC – built specifically for Java applications ...
... – API that provides a common language for application programs to access and process SQL databases independent of the particular RDBMS that is accessed – Java Database Connectivity (JDBC) is similar to ODBC – built specifically for Java applications ...