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Visual Basic Functions Visual Basic Functions
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Description  Syntax  Return Datatype  Example  Migration

CDbl Function - Visual Basic 6.0 (VB 6.0)

Returns an expression that has been converted to a Variant of subtype Double.
Syntax:
CDbl(expression)
Parameter Description
expression Required. The expression argument is any valid expression.

Return Data type:
Double
Example:
Statement Result Remark
CDbl(1) 1  
CDbl(2.5 / 3) 0.833333333333333  
CDbl(0) 0  
CDbl(-1) -1  
CDbl(unknown) 0 uninitialized Variable
CDbl(Null) Error Invalid use of Null
CDbl("abcd") Error Type mismatch
CDbl(True) -1 True - Non Zero
CDbl(False) 0 False - Zero
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Migration from Visual Basic 6.0 (VB 6.0) to
  CDbl Function in VB Script (VBS)
  CDbl Function in JScript (JS)
  CDbl Function in ASP (Active Server Page)
  CDbl Function in PHP Script
  CDbl Function in MS-Access
  CDbl Function in MS SQL Server
  CDbl Function in Oracle
  CDbl Function in C Language
  CDbl Function in C++ Language
  CDbl Function in Foxpro
  CDbl Function in Fortran
  CDbl Function in MS Excel Sheet
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