| Database |
| Database is a collection of information or you can say it is hub of information For reteriving information we fall back on databases. With the help of database you can easily get information in structural form and You can easily search & update your information and easily change/modified your data in database. |
| Importing Exporting Importing |
| Importing objects from another database will create a complete copy of a table, query, or any other database object that you select. Import a database object by following these steps: |
| 1. Open the destination database. |
| 2. Select File|Get External|Import from the menu bar. |
| 3. Choose the database the object is located in a click the Import button. |
| 4. From the Import Objects window, click on |
| Introduction to Visual Basic |
| History of Visual Basic |
| VISUAL BASIC is evolved from the earlier DOS version called BASIC. BASIC means "Beginners Allpurpose Symbolic Instruction Code". It has been around for more than 35 years. BASIC was further developed as Visual Basic to make it compatible with today's environment. Microsoft created the enhanced version of BASIC, called visual basic. |
| The bottom line of the enhancement is that VISUAL BASIC can create Windows programs whereas BASIC could only create DOS programs. It means that BASIC programming is done in a text-only environment and VISUAL BASIC programming is done in a graphical environment. |
| Arrays |
| Introduction of Array |
| An array is the collection of similar data types.The individual elements
of an array is identified by using an index. |
| Each index number in an array is allocated individual memory space.
Hence users declare arrays of larger size than required. |
| Array helps in creating smaller and simpler code in many situation.You
can setup loops that deal efficiently with any number of cases by using the index number. |
| A loop is used to execute a group of statements repeatedly, based on a
condition. |
| Functions |
| Visual Basic Functions |
| A function is a preprogrammed calculation .It can be carried out on request from any point in a Visual Basic program. |
| A function takes one or more arguments and returns a single value and it can be included in an expression. |
| Argument: |
| It is a value on which a function or procedure operates. |
| For example, in the Visual Basic statement Str(10), |
| number 10 is the argument. |
| Visual Basic includes built-in functions like Sqr, Cos or Chr etc.We are discussing some of them here: |
| Creating Simple Application in Visual Basic |
| Structure Of A Visual Basic Application |
| A VISUAL BASIC Application (Project) will be of .VBP extension and related forms are saved with .frm extension. A Simple VISUAL BASIC Project (.VBP). |
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