cs447 chap4
... • is used with SELECT statements that return multiple records • ExecuteReader returns a SqlDataReader object, which contains the results of the query. • A SqlDataReader object reads and returns the results one by one, in a forward-only and read-only manner. The good news about the SqlDataReader is t ...
... • is used with SELECT statements that return multiple records • ExecuteReader returns a SqlDataReader object, which contains the results of the query. • A SqlDataReader object reads and returns the results one by one, in a forward-only and read-only manner. The good news about the SqlDataReader is t ...
CV - ICS Solutions Ltd
... The application imports portfolio holding data from multiple investment houses into a SQL Server 2005 relational database and enables the user to classify each asset according to asset type, sector, market and currency. Different users of the system have access to one or more portfolios, this securi ...
... The application imports portfolio holding data from multiple investment houses into a SQL Server 2005 relational database and enables the user to classify each asset according to asset type, sector, market and currency. Different users of the system have access to one or more portfolios, this securi ...
Slide 1
... Red-Gate software allow for database compression and encryption. Results in smaller backups Could also result in faster backups, if drive speed is the bottleneck ...
... Red-Gate software allow for database compression and encryption. Results in smaller backups Could also result in faster backups, if drive speed is the bottleneck ...
Distributed and Non-Relational Databases
... “For a distributed system to be continuously available, every request received by a non-failing node in the system must result in a response” [7]. Availability is one of the hardest things to test and plan for because it tends to desert you when you need it most. It is only inevitable that services ...
... “For a distributed system to be continuously available, every request received by a non-failing node in the system must result in a response” [7]. Availability is one of the hardest things to test and plan for because it tends to desert you when you need it most. It is only inevitable that services ...
Chap-10
... stores data in tables that consist of rows and columns and a developer refers to a file as a relation, a record as a tuple, and a field as an attribute. A relational database user refers to a file as a table, a record as a row, and a field as a column. A relationship is a connection within the data ...
... stores data in tables that consist of rows and columns and a developer refers to a file as a relation, a record as a tuple, and a field as an attribute. A relational database user refers to a file as a table, a record as a row, and a field as a column. A relationship is a connection within the data ...
File - Malak AL
... Indexes • Orderly arrangement to logically access rows in a table • Is composed of an index key & set of pointers • Index key – Index’s reference point – Points to data location identified by the key • Unique index – Index in which the index key can have only one pointer value (row) associated with ...
... Indexes • Orderly arrangement to logically access rows in a table • Is composed of an index key & set of pointers • Index key – Index’s reference point – Points to data location identified by the key • Unique index – Index in which the index key can have only one pointer value (row) associated with ...
Database Trending
... yesterday compared to today.... And since they're views, I can ”subtract” yesterday from today and display the total (difference) and email it out. ...
... yesterday compared to today.... And since they're views, I can ”subtract” yesterday from today and display the total (difference) and email it out. ...
Extra Information
... Data Monitoring of Database Availability and Backups Work closely with Colleagues to ensure the availability and performance of corporate Databases Ensure that the supply of data to 3rd party suppliers has been fully assessed, as suitable to provide, and satisfies the requirements of our corpo ...
... Data Monitoring of Database Availability and Backups Work closely with Colleagues to ensure the availability and performance of corporate Databases Ensure that the supply of data to 3rd party suppliers has been fully assessed, as suitable to provide, and satisfies the requirements of our corpo ...
Reverse Query Processing Carsten Binnig, Donald Kossmann and
... Testing database applications requires generating test databases Test Database is required for a) carrying out functional tests on the new application ...
... Testing database applications requires generating test databases Test Database is required for a) carrying out functional tests on the new application ...
lesson28
... • This operation should improve the performance of table scans and range queries (which typically perform ...
... • This operation should improve the performance of table scans and range queries (which typically perform ...
PHP and MySQL - Jacksonville University
... Database server processes the query. Database sends back results to PHP server. PHP formats data that it received from database server nicely for HTML. PHP engine finishes running script. PHP returns HTML to the web server. Web server passes HTML back to the browser. ...
... Database server processes the query. Database sends back results to PHP server. PHP formats data that it received from database server nicely for HTML. PHP engine finishes running script. PHP returns HTML to the web server. Web server passes HTML back to the browser. ...
Database Administration
... Data Administration Data and information are valuable assets. Data is used at many business levels Operations and transactions. Tactical management. Strategic management. ...
... Data Administration Data and information are valuable assets. Data is used at many business levels Operations and transactions. Tactical management. Strategic management. ...
Visual Basic Database Access
... • Command Object: The command object allows us to execute a SQL statement or a stored procedure. • DataReader: It is a read-only and forward-only pointer into a table to retrieve records. • DataSet Object: A DataSet object can hold several tables and relationships between tables. • DataAdapter: This ...
... • Command Object: The command object allows us to execute a SQL statement or a stored procedure. • DataReader: It is a read-only and forward-only pointer into a table to retrieve records. • DataSet Object: A DataSet object can hold several tables and relationships between tables. • DataAdapter: This ...
SQL server Network utility
... Acts as interface DLL to SQL Server. Included in window: Lists libraries and set limited options on preferences Information on the libraries. Able to change between ANSI characters to OEM. Set to get date/time from system, or from hardcoded parameters. Need to keep aware of DB-Library ...
... Acts as interface DLL to SQL Server. Included in window: Lists libraries and set limited options on preferences Information on the libraries. Able to change between ANSI characters to OEM. Set to get date/time from system, or from hardcoded parameters. Need to keep aware of DB-Library ...
Chapter 5 Concept Description Characterization
... controlled by the users. Although the control in most OLAP systems is quite user-friendly, users do require a good understanding of the role of each dimension. Furthermore, in order to find a satisfactory description of the data, users may need to specify a long sequence of OLAP operations. ...
... controlled by the users. Although the control in most OLAP systems is quite user-friendly, users do require a good understanding of the role of each dimension. Furthermore, in order to find a satisfactory description of the data, users may need to specify a long sequence of OLAP operations. ...
Project Group Assignment System
... to create teams Three passes are convergent and one pass is divergent ...
... to create teams Three passes are convergent and one pass is divergent ...
Presenter
... Database Window Database Window – Main database design/management window – Displayed when creating or opening an Access database – You can use the Objects toolbar to access the different objects that make up a database ...
... Database Window Database Window – Main database design/management window – Displayed when creating or opening an Access database – You can use the Objects toolbar to access the different objects that make up a database ...
Project Report
... The benchmark simulates a typical bank application by a single type of transaction that models cash withdrawal and deposit at a bank teller The transaction updates several relations such as the bank balance and the customer’s balance The benchmark also incorporates communication with terminals ...
... The benchmark simulates a typical bank application by a single type of transaction that models cash withdrawal and deposit at a bank teller The transaction updates several relations such as the bank balance and the customer’s balance The benchmark also incorporates communication with terminals ...
Chapter 1 Introduction to DBMS Implementation
... Ullman and Widom's A First Course in Database Systems, Prentice-Hall, 1997. The following terms should thus be familiar: ...
... Ullman and Widom's A First Course in Database Systems, Prentice-Hall, 1997. The following terms should thus be familiar: ...
Database Integrity, Security and Recovery
... Backup failure – makes a copies of the database Journalizing facilities – used to store the audit trails of transactions and database changes Checkpoint facilities – will refuse to accept any new transaction Recovery manager – restore the database correctly after a failure has occured ...
... Backup failure – makes a copies of the database Journalizing facilities – used to store the audit trails of transactions and database changes Checkpoint facilities – will refuse to accept any new transaction Recovery manager – restore the database correctly after a failure has occured ...
Relational model
The relational model for database management is an approach to managing data using a structure and language consistent with first-order predicate logic, first described in 1969 by Edgar F. Codd. In the relational model of a database, all data is represented in terms of tuples, grouped into relations. A database organized in terms of the relational model is a relational database.The purpose of the relational model is to provide a declarative method for specifying data and queries: users directly state what information the database contains and what information they want from it, and let the database management system software take care of describing data structures for storing the data and retrieval procedures for answering queries.Most relational databases use the SQL data definition and query language; these systems implement what can be regarded as an engineering approximation to the relational model. A table in an SQL database schema corresponds to a predicate variable; the contents of a table to a relation; key constraints, other constraints, and SQL queries correspond to predicates. However, SQL databases deviate from the relational model in many details, and Codd fiercely argued against deviations that compromise the original principles.