Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Access Database
| Term | Definition |
|---|---|
| database | a collection of data organized in a manner that allows access, retrieval and use of that data. |
| database management system | a software that allows you to use a computer to create a database, add, change and delete data in the database, 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 the db table |
| 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 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 that 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 that can contain any characters over 255 charactors |
| 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 that can be used as a hyper link 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 a caption instead of actual fields 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 t he 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. |
| design grid | the portion of the window where you specify fields and criteria for the query. |
| text data | data in a field whose data type is short text |
| wild cards | symbols that represent any character or combination of characters |
| asterisk * | represents any collection of characters |
| question mark ? | represents any individual character |
| parameter query | a query that prompts for input whenever it is used |
| comparison operator | use when you want a query to return something other than an exact match . >< >= <= and NOT |
| compound criteria | criteria using AND or OR |
| special criteria | criteria involving a range of values: AND operato, BETWEEN operator, IN operator |
| sort | order the records in a particular way |
| sort key | field or fields in which records are sorted |
| major key | primary sort key |
| minor key | secondary key |
| property sheet | a window containing the various properties o f the object. |
| top values query | allows you to restrict the number of records that appear |
| join | joining tables |
| join properties | the properties that indicate which records appear in a join |
| export | copy, tables or queries from an Access database so that another application can use the data |
| delimited files | each record is on a separate line and the fields are separated by a special character. |
| delimiter | the special character that separates the records |
| fixed-width files | the width of every field is the same on every record |
| individual record calculation | adding the values in two fields for one record |
| group calculation | finding the total of the values in a particular field on all the records (groups of records) |
| calculated field | a field that can be computed from other fields (also called a computed field) |
| aggregate function | a function that performs some mathematical function against a group of records. |
| grouping | creating groups of records that share some common characteristics |
| cross tab query | calculates a statistic for data that is grouped by two different types of information. |
| maintaining the database | modifying t he data to keep it up to date by adding new records, changing the data for existing records and deleting records. |
| restructuring the date base | includes adding new fields to a table, changing the characteristics of existing fields and removing existing fields. Also includes the creation of validation rules. |
| split form | a form that allows you to simultaneously view both simple form and datasheet views of the data. |
| filter | use to have only one record or records that satisfy criteria |
| structure | names and types to all the fields |
| lookup field | allows the user to select from a list of values when updating the contents of ht field. |
| multivalued fields | fields that contain more than one value. |
| action query | adds, deletes, or changes data in a table |
| update query | allows you to make the same changes to all records in the table. |
| delete query | allows you to delete all the records satisfying some criterion |
| append query | add the results of a query to an existing table |
| make-table query | add the query results to a new table |
| validation rules | rules that a user must follow when entering the data |
| validation text | the message that appears if a user attempts to violate the validation rule. |
| required field | a field in which the user must enter data, failing to enter data into a required field generates an error |
| range of values | restrict the range of values ex. between 0-1000 |
| default value | a value that access will display on the screen in a particular field before the user begins adding a record. |
| legal values | "allowable values" SER, NON, IND |
| format | to affect the way data appears in a field |
| format symbol | a special symbol used in to change a format |
| referential intergrity | the property that ensures that the value in a foreign key must match that of another tables primary key |
| foreign key | a field in one table whose values are required to match the primary key of another table |
| one to many relationship | one record in the first table is related to, or matches many records in the second table, but each record in the second table is related to only one in the first. |
| subdata sheet | useful when you want to review or edit data in joined or related tables. |
Created by:
lynne28
Popular Computers sets