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CIT201 DB Terms Ch 1

CIT201 DB Module 1 Terms

TermDefinition
database Collection of data organized in a manner that allows for access, retrieval, and use of that data.
database management system Software that allows you to use a computer to create a database; add, change, and delete data in the db; ask and answer questions; and create forms and reports using the data.
relational database Database containing a collection of tables, each of which contains information on a specific subject, but are related.
records Rows in db table. Contain information on a given person, product, or event.
fields The columns in the table. Contains a specific piece of information within a record.
unique identifier Way of uniquely identifying each record in the db. Also called a primary key.
autonumber field Primary key created automatically by Access. Starts with 1, next 2, and so on.
data type Type of data that can be stored in the field. Examples: Short text, Number, etc.
short text Data type that can contain any characters up to 255 characters.
number Data type that can contain any positive or negative number and can be used in arithmetic calculations.
currency Data type can only contain monetary data and will appear with currency symbols. Can be used in arithmetic calculations.
date and time Data type can contain dates and/or times.
long text Data type can contain any characters over 255 characters.
autonumber Data type can store unique sequential number that Access assigns to record. Increments by 1.
yes/no Data type can store 1 of 2 values. Yes/No, On/Off, True/False
OLE object Data type can store OLE object which is object link to or embedded in the table.
Hyperlink Data type can store text that can be used as Hyperlink address.
Attachment Data type can contain an attached file.
Calculated Data type specifying a calculation based on other fields. Value is not actually stored.
caption Allows you to display caption instead of actual field name when creating a db table.
Portrait orientation printout will be across the width of the page
Landscape orientation printout will be across the height of the page
import Make a copy of the data as a table in the Access db.
queries Questions that can be answered using the data stored in a db.
database properties Details about a db that helps you organize and identify the db. Also known as metadata. Include such information as the author, title, or subject.
Keywords Words or phrases that further describe the db such as a class name or db topic
Standard Properties Associated with all Microsoft documents and include author, title, and subject.
Automatically Updated Properties Include file system properties and include the date you create or modify a file, the file size, etc.
Recover Process of returning a damaged db to a correct state.
Backup Copy Important to backup the db so you may recover if damaged. Makes a copy of the db.
Live db Database currently working on.
Database Design Process of determining the tables and fields that make up the db.
Redundancy Storing the same fact in more than one place. Try to avoid this while creating db tables.
Created by: Leisac