CSC 443 – Database Management Systems Databases
... • New database state satisfies specifications of transaction ...
... • New database state satisfies specifications of transaction ...
Data connection and manipulation of archaeological database
... views include whether to use the current connection for new views, the maximum number or rows to be returned to a view, how many rows to return in a single fetch, whether to fetch memo fields with their records or wait until display of the memo data is requested, whether to compare key fields or key ...
... views include whether to use the current connection for new views, the maximum number or rows to be returned to a view, how many rows to return in a single fetch, whether to fetch memo fields with their records or wait until display of the memo data is requested, whether to compare key fields or key ...
CRSP SuRvivoR-biaS-fRee uS mutual fund databaSe OctOber 2012 quarterly update
... The data are installed with a new InstallAnywhere wizard. To install the data insert the DVD and click on the appropriate setup icon. General notes: The table with the largest number of rows is the Daily Returns table, containing 77,632,941 rows. A blank field means either that data was not ap ...
... The data are installed with a new InstallAnywhere wizard. To install the data insert the DVD and click on the appropriate setup icon. General notes: The table with the largest number of rows is the Daily Returns table, containing 77,632,941 rows. A blank field means either that data was not ap ...
152194Ch09
... Made up of one or more extents. Highest level at which a lock can be placed. Can be made up of multiple files (but a file cannot hold multiple databases) Default files of every database: o Primary physical database file - *.mdf o Log file - *.ldf; contains a serial record of what happened to ...
... Made up of one or more extents. Highest level at which a lock can be placed. Can be made up of multiple files (but a file cannot hold multiple databases) Default files of every database: o Primary physical database file - *.mdf o Log file - *.ldf; contains a serial record of what happened to ...
Slides
... A file is the typical way we organize data on our computers One way to classify files is the following categories: ...
... A file is the typical way we organize data on our computers One way to classify files is the following categories: ...
Database Access Controls and Security Measures
... over field values, records or over entire database. Use when deleting, retrieving or updating ...
... over field values, records or over entire database. Use when deleting, retrieving or updating ...
Backup of Chap4ReviewQuestions.wbk
... d. The underlying set of records can be changed within the Recordset. e. All of the above. ...
... d. The underlying set of records can be changed within the Recordset. e. All of the above. ...
P1L7 Database Security
... Defenses Against Inference Attacks These kinds of defenses are hard to implement. Do not allow aggregate query results when the set of tuples selected is either too small or too large. An extreme case would be where there is one tuple returned. Deidentification: Transform data by removin ...
... Defenses Against Inference Attacks These kinds of defenses are hard to implement. Do not allow aggregate query results when the set of tuples selected is either too small or too large. An extreme case would be where there is one tuple returned. Deidentification: Transform data by removin ...
Overview of Databases and DBMS
... • Query processor: receive queries, create query plans, send to execution engine E primitive commands (index, file, record requests), which will be satisfied by the corresponding manager M • Transaction manager: maintains the consistency of the database (control read from/write to a database, concur ...
... • Query processor: receive queries, create query plans, send to execution engine E primitive commands (index, file, record requests), which will be satisfied by the corresponding manager M • Transaction manager: maintains the consistency of the database (control read from/write to a database, concur ...
MS Access Tutorial - Welcome
... her in setting up a simple MS Access database that will track the appropriate ...
... her in setting up a simple MS Access database that will track the appropriate ...
Microsoft Access is a program to create and manage your databases
... Primary keys are one or more fields (columns) whose value or values uniquely identify each record in a table. A primary key does not allow Null values and must always have a unique value. After you've set up multiple tables in your Microsoft Access database, you need a way of telling Access how to b ...
... Primary keys are one or more fields (columns) whose value or values uniquely identify each record in a table. A primary key does not allow Null values and must always have a unique value. After you've set up multiple tables in your Microsoft Access database, you need a way of telling Access how to b ...
Project: DatabasePP
... • The hierarchical model database is a tree like structure that branches into other folders, each child data has only one parent data, the way most computer operating system display folders to users. Each link is nested to keep data organized on the same level. • The defining feature of a network mo ...
... • The hierarchical model database is a tree like structure that branches into other folders, each child data has only one parent data, the way most computer operating system display folders to users. Each link is nested to keep data organized on the same level. • The defining feature of a network mo ...
Progress Database and Hardware Internals
... different tables in the same block Progress can store from 1 to 256 records per block per storage area All areas for a database must have the same block size (1 – 8kb) Total records per area is fixed More records per block equals lower total blocks ...
... different tables in the same block Progress can store from 1 to 256 records per block per storage area All areas for a database must have the same block size (1 – 8kb) Total records per area is fixed More records per block equals lower total blocks ...
No Slide Title
... – Two-dimensional list (array) – Rows = objects – Columns = object states (properties, attributes) ...
... – Two-dimensional list (array) – Rows = objects – Columns = object states (properties, attributes) ...
Session 8 Slideshow
... (a) describe a database as a persistent organised store of data (b) explain the use of data handling software to create, maintain and interrogate a database. (c) separation of data from applications and why this is desirable (d) describe the principal features of a DBMS and how they can be used to c ...
... (a) describe a database as a persistent organised store of data (b) explain the use of data handling software to create, maintain and interrogate a database. (c) separation of data from applications and why this is desirable (d) describe the principal features of a DBMS and how they can be used to c ...
Data Definition Language and Data Manipulation Language
... With the use of the CREATE VIEW statement, users may create a special view on one or more tables (or views) in the database in form of a new “virtual” table. The data view is created with the use of an associated SELECT statement. Most SQL statements that apply to a database table can also be applie ...
... With the use of the CREATE VIEW statement, users may create a special view on one or more tables (or views) in the database in form of a new “virtual” table. The data view is created with the use of an associated SELECT statement. Most SQL statements that apply to a database table can also be applie ...
Document - Oman College of Management & Technology
... Relational: data relationships are maintained using shared data values called key fields ...
... Relational: data relationships are maintained using shared data values called key fields ...
Database Design
... is important that you understand its structure. Database design is about how to organize large amounts of information so that it is understandable by humans and can be stored in a computer in such a way that it is easy and fast to find desired information. The course covers the fundamentals of the d ...
... is important that you understand its structure. Database design is about how to organize large amounts of information so that it is understandable by humans and can be stored in a computer in such a way that it is easy and fast to find desired information. The course covers the fundamentals of the d ...
Access.T01
... • A collection of related tables is called a database, or a relational database • You connect the records in the separate tables through a common field • A primary key is a field, or a collection of fields, whose values uniquely identify each record in a table • When you include the primary key from ...
... • A collection of related tables is called a database, or a relational database • You connect the records in the separate tables through a common field • A primary key is a field, or a collection of fields, whose values uniquely identify each record in a table • When you include the primary key from ...