Data Types

As the name suggests, data-type specifies the type of the data present in the variable. Variables must be declared with a data-type.

| Data type | Description | Range | Memory Size|
|----|----|----|----|----|
|byte| used to store unsigned integer| 0 to 255| 1 byte|
|sbyte| used to store signed integer| -128 to 127| 1 byte|
|ushort| used to store unsigned integers| 0 to 65,535 | 2 bytes|
| integer| used to store signed integers|-2,147,483,648 to 2,147,483,647|4 bytes|
|long | used to store signed integers|-9,223,372,036,854,775,808 to 9,223,372,036,854,775,807| 8 bytes|
|double| used to store fractional numbers|15 decimal digits| 8 bytes|
|char|used to store a single character enclosed in single quote|one character|2 bytes|
|boolean| Boolean data type|Stores either true or false | 1 bit|
|date| Used to store date values|0:00:00 January 1, 0001 to 23:59:59 December 31, 9999|8 bytes|
|decimal|used to store decimal values| 0 to +/-7.9228162514264337593543950335 with 28 places to the right of the decimal|16 bytes|
|String| Stores a sequence of characters enclosed in double quotes| Sequence of Characters|2 bytes per character|
|object | Object can be represented as base type of all other types.||4 bytes on 32-bit platform and 8 bytes on 64-bit platform|

Examples

   Dim byteVar As Byte
   Dim intVar As Integer
   Dim doubleVar As Double
   Dim dateVar As Date
   Dim charVar As Char
   Dim strVar As String
   Dim boolVar As Boolean

Type Conversions

Function	Description
CChar(exp)	to convert the expression to a Char data type.
CStr(exp)	to convert the expression to a String data type.
CBool (exp)	to convert the expression to a Boolean data type.
CDate(exp)	to convert the expression to a Date data type.
CInt(exp)	to convert the expression to an Integer data type.
CLng(exp)	to convert the expression to a Long data type.
CDec(exp)	to convert the expression to a Decimal data type.
CDbl(exp)	to convert the expression to a Double data type.
CByte (exp)	to convert the expression to a byte data type.
CSByte(exp)	to convert the expression to a Byte data type.
CShort(exp)	to convert the expression to a Short data type.
CObj(exp)	to convert the expression to an Object data type.