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 VARTYPE( ) Function

Returns the data type of an expression.

NoteNote

VARTYPE( ) is similar to the TYPE( ) function, but VARTYPE( ) is faster and does not require quotation marks to enclose the expression for which the data type is returned.

VARTYPE(eExpression [, lNullDataType])

Parameters

eExpression

Specifies the expression for which the data type is returned. VARTYPE( ) returns a single character indicating the data type of the expression.

The following table lists the characters that VARTYPE( ) returns for each data type.

Return value Data type

C

Character, Memo, Varchar, Varchar (Binary)

D

Date

G

General

L

Logical

N

Numeric, Float, Double, or Integer

O

Object

Q

Blob, Varbinary

T

DateTime

U

Unknown or variable does not exist

X

Null

Y

Currency

NoteNote

If eExpression is an array, the first element in the array is evaluated.

lNullDataType

Specifies whether VARTYPE( ) returns the data type when eExpression contains the null value.

The following table lists the values of lNullDataType.

lNullDataType Description

True (.T.)

Return data type for eExpression.

False (.F.) or omitted

Return 'X' to indicate eExpression contains a null value.

Expand imageReturn Value

Character. VARTYPE( ) returns a character representing the data type of the specified expression.

Expand imageSee Also