Chapter 21:Application Development and Administration
... under Student, Teacher To avoid a conflict between the two occurrences of department we can rename them create type Teaching Assistant under Student with (department as student_dept ), Teacher with (department as teacher_dept ) ...
... under Student, Teacher To avoid a conflict between the two occurrences of department we can rename them create type Teaching Assistant under Student with (department as student_dept ), Teacher with (department as teacher_dept ) ...
A Review on Database Migration Strategies, Techniques and Tools
... through the values of primary keys and foreign keys. A single object might be represented with several tuples in quite a lot of tables, and therefore, joining these tables is required for queries. This constant conversion leads to a semantic gap between the two different paradigms. To avoid this, de ...
... through the values of primary keys and foreign keys. A single object might be represented with several tuples in quite a lot of tables, and therefore, joining these tables is required for queries. This constant conversion leads to a semantic gap between the two different paradigms. To avoid this, de ...
Best Practices for your DB2 UDB database system by Dwaine R
... • SQL functions for snapshots allow you to easily insert the data into table(s) for analysis using SQL – Can analyze data for trends – Predict and plan for growth ...
... • SQL functions for snapshots allow you to easily insert the data into table(s) for analysis using SQL – Can analyze data for trends – Predict and plan for growth ...
Database Security
... Database level audit trail Database needs to ensure these can’t be turned off, and turned on again after doing damage Supported by most commercial database systems But required DBAs with knowledge of application to monitor at this level ...
... Database level audit trail Database needs to ensure these can’t be turned off, and turned on again after doing damage Supported by most commercial database systems But required DBAs with knowledge of application to monitor at this level ...
Chapter 11
... Transmit telephone conversations in IP packets sent over the Internet or another network, such as Ethernet, Frame Relay, or ATM carrying IP packets IP Packet ...
... Transmit telephone conversations in IP packets sent over the Internet or another network, such as Ethernet, Frame Relay, or ATM carrying IP packets IP Packet ...
Module 2 Association Rules
... Page size (P): the size of one data page in byte, which contains a batch of records When records are loaded from disk to main memory, it is not loaded record by record, but page by page R = 4 gigabytes, P = 4 kilobytes, hence R / P = 10242 number of pages Hash table size (H): maximum size of the has ...
... Page size (P): the size of one data page in byte, which contains a batch of records When records are loaded from disk to main memory, it is not loaded record by record, but page by page R = 4 gigabytes, P = 4 kilobytes, hence R / P = 10242 number of pages Hash table size (H): maximum size of the has ...
Chapter 21:Application Development and
... The object-oriented paradigm is based on encapsulating code and data related to an object into single unit. The object-oriented data model is a logical data model (like the E-R model). Adaptation of the object-oriented programming paradigm (e.g., ...
... The object-oriented paradigm is based on encapsulating code and data related to an object into single unit. The object-oriented data model is a logical data model (like the E-R model). Adaptation of the object-oriented programming paradigm (e.g., ...
dl/i calls - Mainframes Online Training
... MADE UP OF ONE OR MORE PROGRAM COMMUNICATION BLOCKS (PCBs) DB PCB - DEFINES PROGRAM’S VIEW OF A IMS DATABASE WHENEVER A DATABASE VIEW DEFINED BY THE PCB IS ACCESSED BY A CALL, THE RESULTS OF CALL ARE PASSED THROUGH THE PCB TO PROGRAM PSB IS GENERATED BY PSBGEN MACRO ...
... MADE UP OF ONE OR MORE PROGRAM COMMUNICATION BLOCKS (PCBs) DB PCB - DEFINES PROGRAM’S VIEW OF A IMS DATABASE WHENEVER A DATABASE VIEW DEFINED BY THE PCB IS ACCESSED BY A CALL, THE RESULTS OF CALL ARE PASSED THROUGH THE PCB TO PROGRAM PSB IS GENERATED BY PSBGEN MACRO ...
A GENERAL SOFTWARE ARCHITECTURE FOR INFORMATION
... development of an educational administration system (ESAS) and a financial system (ØSE) for the Danish trade schools. There are 115 such schools with a total of approximately 2000 users. The initial project effort of the ESAS project was 220 person-months, and at present, after 5 years of use, mainten ...
... development of an educational administration system (ESAS) and a financial system (ØSE) for the Danish trade schools. There are 115 such schools with a total of approximately 2000 users. The initial project effort of the ESAS project was 220 person-months, and at present, after 5 years of use, mainten ...
The Client/Server Database Environment
... Client–Workstation (PC, smartphone, tablet) that requests and uses a service Server– Powerful computer (PC/mini/mainframe) that provides a service For DBMS, server is a database server For the Internet, server is a web server ...
... Client–Workstation (PC, smartphone, tablet) that requests and uses a service Server– Powerful computer (PC/mini/mainframe) that provides a service For DBMS, server is a database server For the Internet, server is a web server ...
Data Warehousing with MySQL
... Staging Area and its benefits Relational Table structures are flattened to support extract processes in Staging Area. • First data is loaded into the temporary table and then to the main DB tables. • Reduces the required space during ETL. • Data can be distributed to any number of data marts Copyrig ...
... Staging Area and its benefits Relational Table structures are flattened to support extract processes in Staging Area. • First data is loaded into the temporary table and then to the main DB tables. • Reduces the required space during ETL. • Data can be distributed to any number of data marts Copyrig ...
History of SQL
... primary keys lets you uniquely identify an entity in a table, check constraints lets you limit the value range that can be placed in a column, and referential integrity ensures that relationships between tables remains consistent. All of these features are useful because they make sure that the valu ...
... primary keys lets you uniquely identify an entity in a table, check constraints lets you limit the value range that can be placed in a column, and referential integrity ensures that relationships between tables remains consistent. All of these features are useful because they make sure that the valu ...
R - delab-auth
... Take the attribute affinity matrix AA and reorganize the attribute orders to form clusters where the attributes in each cluster demonstrate high affinity to one another. Bond Energy Algorithm (BEA) has been used for clustering of entities. BEA finds an ordering of entities (in our case attributes) s ...
... Take the attribute affinity matrix AA and reorganize the attribute orders to form clusters where the attributes in each cluster demonstrate high affinity to one another. Bond Energy Algorithm (BEA) has been used for clustering of entities. BEA finds an ordering of entities (in our case attributes) s ...
Assessment for the CS Degree Program FY 2012-2013 Computer Science Dept.
... (CO470.4)Develop an application program to access databases with the Java programming language. Program Objective #3 (PO3): Students will develop solution-modeling skills. Assessment will be measured through testing the following course objectives: The first percentile is Fall 2009 and the second pe ...
... (CO470.4)Develop an application program to access databases with the Java programming language. Program Objective #3 (PO3): Students will develop solution-modeling skills. Assessment will be measured through testing the following course objectives: The first percentile is Fall 2009 and the second pe ...
What is NoSQL?
... across a configurable set of systems that function as storage nodes ● Data is stored as key-value pairs, which are written to particular storage node(s), based on the hashed value of the primary key. ● Storage nodes are replicated to ensure high availability, rapid failover in the event of a node fa ...
... across a configurable set of systems that function as storage nodes ● Data is stored as key-value pairs, which are written to particular storage node(s), based on the hashed value of the primary key. ● Storage nodes are replicated to ensure high availability, rapid failover in the event of a node fa ...
Profiles, password policies, privileges, and roles
... – Never store passwords for an application in plaintext – Change passwords frequently – Use passwords at least eight characters long – Pick a password that you can remember – Use roles to control and administer privileges – Report compromise or loss of a password – Report any violation of company gu ...
... – Never store passwords for an application in plaintext – Change passwords frequently – Use passwords at least eight characters long – Pick a password that you can remember – Use roles to control and administer privileges – Report compromise or loss of a password – Report any violation of company gu ...
T - VUB STARLab
... Alternative models carry out transactions by sending messages Code to handle messages must be carefully designed to ensure atomicity and durability properties for updates Isolation cannot be guaranteed, in that intermediate stages are visible, but code must ensure no inconsistent states result ...
... Alternative models carry out transactions by sending messages Code to handle messages must be carefully designed to ensure atomicity and durability properties for updates Isolation cannot be guaranteed, in that intermediate stages are visible, but code must ensure no inconsistent states result ...
Exercises: Data Definition and Data Types
... You now know how to create database using the GUI of the SSMS. Now it’s time to create it using SQL queries. In that task (and the several following it) you will be required to create the database from the previous exercise using only SQL queries. Firstly, just create new database named Minions. ...
... You now know how to create database using the GUI of the SSMS. Now it’s time to create it using SQL queries. In that task (and the several following it) you will be required to create the database from the previous exercise using only SQL queries. Firstly, just create new database named Minions. ...
Chapter 22: Advanced Querying and Information Retrieval
... Each page gets a hub prestige based on prestige of authorities that it points to Each page gets an authority prestige based on prestige of hubs that point to it Again, prestige definitions are cyclic, and can be got by ...
... Each page gets a hub prestige based on prestige of authorities that it points to Each page gets an authority prestige based on prestige of hubs that point to it Again, prestige definitions are cyclic, and can be got by ...
Chapter 1
... for every database vendor - Can also use a three-tier configuration - The application runs on the client side, the middle machine runs JDBC, and the third system runs the database system - JDBC and MySQL - Connecting the application to the driver - The getConnection method of DriverManager, which se ...
... for every database vendor - Can also use a three-tier configuration - The application runs on the client side, the middle machine runs JDBC, and the third system runs the database system - JDBC and MySQL - Connecting the application to the driver - The getConnection method of DriverManager, which se ...
RelationalCalculus
... Semantic interpretation of the calculus is given in a set, so either all type domains of the relational schema (domain calculus), or the set of all relations in the database (tuple calculus) can serve a model for it All meaningful sentences in the model are true or false, so the relation tuples can ...
... Semantic interpretation of the calculus is given in a set, so either all type domains of the relational schema (domain calculus), or the set of all relations in the database (tuple calculus) can serve a model for it All meaningful sentences in the model are true or false, so the relation tuples can ...
Document
... Database Design • To design a database, you need to have a conceptual view of the entire database. • The conceptual view illustrates the different files and relationships between the files. • The data dictionary is a “blueprint” of the structure of the database and includes data elements, field typ ...
... Database Design • To design a database, you need to have a conceptual view of the entire database. • The conceptual view illustrates the different files and relationships between the files. • The data dictionary is a “blueprint” of the structure of the database and includes data elements, field typ ...
DB-05: Database Storage Considerations
... The data blocks are clustered together and in turn these clusters are chained together Scan type operations need only find the first block and the rest of the blocks will follow Example: When you do an index rebuild, the first step is to delete all of the index blocks. In a type 1 area all of the ...
... The data blocks are clustered together and in turn these clusters are chained together Scan type operations need only find the first block and the rest of the blocks will follow Example: When you do an index rebuild, the first step is to delete all of the index blocks. In a type 1 area all of the ...
Chapter 1
... an overarching multitenant container database. A multitenant container database (CDB) is defined as a database capable of housing one or more pluggable databases. A container is defined as a collection of data files and metadata that exist within a CDB. A pluggable database is a special type of cont ...
... an overarching multitenant container database. A multitenant container database (CDB) is defined as a database capable of housing one or more pluggable databases. A container is defined as a collection of data files and metadata that exist within a CDB. A pluggable database is a special type of cont ...
de5.2.2
... application programs. It should also be pointed out that the data model is not intended to act as a general purpose model of protein crystallographic data. Another practical issue is that of moving from the abstract representation of the data model to a concrete implementation. This will involve not ...
... application programs. It should also be pointed out that the data model is not intended to act as a general purpose model of protein crystallographic data. Another practical issue is that of moving from the abstract representation of the data model to a concrete implementation. This will involve not ...