Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Data vault modeling wikipedia , lookup
Serializability wikipedia , lookup
Entity–attribute–value model wikipedia , lookup
Oracle Database wikipedia , lookup
Microsoft Access wikipedia , lookup
Concurrency control wikipedia , lookup
Relational model wikipedia , lookup
Microsoft Jet Database Engine wikipedia , lookup
Versant Object Database wikipedia , lookup
Introducing Access Lesson 1 Objectives • Start Access and explore the Database window • Explore database objects • Enter, edit, and delete records in a datasheet • Print database objects • Enter, edit, and delete records in a form • Create a database Start Access and Explore the Database Window • What is a database – It is a collection of information on a specific subject kept together in a file • What is Access – a relational database that allows the storage of information in separate tables and joining them through relationships Start Access and Explore the Database • Database window – The dialog box that appears when Access is opened – the left of the database window is known as the Objects bar and has the database objects that are grouped by type • Database objects are Tables, queries, forms, and reports – Database objects help in the manipulation and storage of information Explore Database Objects Exercise 2 • Database Objects – Table: Contains the data • When open in datasheet view Access shows the table datasheet toolbar – Query: has no data instead displays only information that has been requested from the table or tables – Form: a window used to enter, edit, and view individual data records in one or more table – Report: a professional summary printout of database information Explore Database Objects • Access has 4 views and each has its own toolbars – Datasheet view: a row and column format used to add, modify, or delete data from a table or query – Form view: displays fields one record at a time – Print Preview: how data will look when printed – Design view: the structure and layout but not actual data is shown– this view is used to change structure, formatting, and/or arrangement of database objects Navigate Records in a Datasheet • Datasheet – Row and column format that resembles an Excel worksheet • Record: a row that contains all the data for a specific item • Field: a column that has a specific item for a record – Example: a student database has a record for every student (all information), and each student has a field for first name, last name Navigate Records in a Datasheet • Tables can contain lots of records to navigate through a table use the navigational toolbar at the bottom of object windows Button Name Purpose First Record Moves to the first record (or page) Previous Record Moves to the previous record Specific Record Moves to the record specified in the box Next Record Moves to the next record in an object Last Record Moves to the last record in an object New Record Moves to a new record in an object Enter, Edit, and Delete Records in a Datasheet • Record selector: a small, gray box to the left of each record – To delete are record click on the record selector and press the delete key. Symbol Meaning Indicates that this is the current record and the record has been saved Indicates that the record is being edited and the changes have not been saved Indicates that this a new record into which you can enter information Print Database Objects • Any on the database objects can be printed, but Reports can be designed to look attractive and professional • A print range can be either a range of pages or of records • The Setup button on the Print dialog box provides access to Page Setup where the margins can be specified Enter, Edit, and Delete Records in a Form • In a Form only one record is seen at a time • The navigation toolbar is used to move from one record to another • To delete a record from a Form click the record selector and press delete Create a Database • To Create an Access Database – Use a Database Wizard that uses a predefined database from a template or – Create a new database from scratch • Database Wizards – The Wizard creates the database “behind the scenes” by using VBA (Visual Basic for Applications) programming code making it difficult to customize • Creating from a Blank Database – Can be customized