Examples Of Microsoft Access Databases
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Examples Of Microsoft Access Data
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With the data access page open in Design view, select items from the Field List. If you cannot see the Field List, click Field List on the View menu. In the Field List, expand the Contacts table. Drag the FirstName and LastName fields onto the data access page, under the last line of text. 5 Examples of Microsoft Access Date Functions - select the contributor at the end of the page. (you can use Microsoft's Northwind sample database to practice, if. Access Database Examples. Snapshots of forms from our templates database examples are listed below. You will see that a majority of the screen captures show a consistent look and feel from database to database. How can the answer be improved? Access Database Examples. Or, choose from the Access examples listed below: Equipment Inventory Tracking Example Tracking the who, what, when, and where of expensive corporate assets is the design goal of this Access database system. The design includes tracing of assets moved into and out of storage locations and inventory calculations.

Applies to: Access 2013, Office 2013

Creates a new index on an existing table.

Note

For non-Microsoft Access database engine databases, the Microsoft Access database engine does not support the use of CREATE INDEX (except to create a pseudo index on an ODBC linked table) or any of the data definition language (DDL) statements. Use the DAO Create methods instead. For more information, see the Remarks section.

Syntax

CREATE [ UNIQUE ] INDEX index ON table (field [ASC|DESC][, field [ASC|DESC], xE2x80因) [WITH { PRIMARY | DISALLOW NULL | IGNORE NULL }]

The CREATE INDEX statement has these parts:

Part	Description
index	The name of the index to be created.
table	The name of the existing table that will contain the index.
field	The name of the field or fields to be indexed. To create a single-field index, list the field name in parentheses following the table name. To create a multiple-field index, list the name of each field to be included in the index. To create descending indexes, use the DESC reserved word; otherwise, indexes are assumed to be ascending.

Remarks

To prohibit duplicate values in the indexed field or fields of different records, use the UNIQUE reserved word.

In the optional WITH clause, you can enforce data validation rules. You can:

Prohibit Null entries in the indexed field or fields of new records by using the DISALLOW NULL option.
Prevent records with Null values in the indexed field or fields from being included in the index by using the IGNORE NULL option.
Designate the indexed field or fields as the primary key by using the PRIMARY reserved word. This implies that the key is unique, so you can omit the UNIQUE reserved word.
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You can use CREATE INDEX to create a pseudo index on a linked table in an ODBC data source, such as Microsoft SQL Server, that does not already have an index. You do not need permission or access to the remote server to create a pseudo index, and the remote database is unaware of and unaffected by the pseudo index. You use the same syntax for both linked and native tables. Creating a pseudo-index on a table that would ordinarily be read-only can be especially useful.

You can also use the ALTER TABLE statement to add a single- or multiple-field index to a table, and you can use the ALTER TABLE statement or the DROP statement to remove an index created with ALTER TABLE or CREATE INDEX.

Note

Do not use the PRIMARY reserved word when you create a new index on a table that already has a primary key; if you do, an error occurs.

Example

This example creates an index consisting of the fields Home Phone and Extension in the Employees table.

Examples Of Microsoft Access Databases

This example creates an index on the Customers table using the CustomerID field. No two records can have the same data in the CustomerID field, and no Null values are allowed.

Becoming familiar with the tables, forms, queries, and other objects in an Access database can make it easier to perform a wide variety of tasks, such as entering data into a form, adding or removing tables, finding and replacing data, and running queries.

This article provides a basic overview of the structure of an Access database. Access provides several tools that you can use to familiarize yourself with the structure of a particular database. This article also explains how, when, and why you use each tool.

Note: This article is about traditional Access databases that consist of a file or set of files that contains all the data and application features, such as data entry forms. Some of it does not apply to Access web databases and Access web apps.

Overview

A database is a collection of information that is related to a particular subject or purpose, such as tracking customer orders or maintaining a music collection. If your database isn't stored on a computer, or only parts of it are, you may be tracking information from a variety of sources that you must coordinate and organize.

For example, suppose the phone numbers of your suppliers are stored in various locations: in a card file containing supplier phone numbers, in product information files in a file cabinet, and in a spreadsheet containing order information. If a supplier's phone number changes, you might have to update that information in all three places. In a well-designed Access database, the phone number is stored just once, so you only have to update that information in one place. As a result, when you update a supplier's phone number, it is automatically updated wherever you use it in the database.

Access database files

You can use Access to manage all of your information in one file. Within an Access database file, you can use:

Tables to store your data.
Queries to find and retrieve just the data that you want.
Forms to view, add, and update data in tables.
Reports to analyze or print data in a specific layout.

1. Store data once in one table, but view it from multiple locations. When you update the data, it's automatically updated everywhere it appears.