Support Functions > Bt

Purpose

Get an internal Btrieve data type from a VO2Btrieve type code, or vice versa

Prototype

FUNCTION Bt_CvType ( uType AS USUAL, lLong := FALSE AS LOGIC ) AS USUAL PASCAL

Argument(s)

<uType> is a data type. Codes for Btrieve data types are numeric; VO2Btrieve's are

character strings.

<lLong> is an optional logic that tells the system to return a description

of the datatype in stead of a translation. Default no descriptions are returned

Return

USUAL If the argument is an internal Btrieve data type, a VO2Btrieve type code is

returned. If it is a VO2Btrieve type code, an internal Btrieve data type is returned.

Description

This function is useful when reading BTrieve data dictionary files. It is not used in a typical application. The Btrieve data types and their associated VO2Btrieve type codes are:

Btrieve Vo2Bt Description

0 C Character

1 NI Integer

2 NF IEEE Floating Point (FLOAT)

3 D Date

4 CT Time

5 NP Packed Decimal (DECIMAL)

6 N$ Packed Decimal (MONEY)

7 L Logical

8 N Numeric

9 NB Basic Floating Point (BFLOAT)

10 CL Pascal character (LSTRING)

11 CZ AsciiZ (ZSTRING)

12 M Memo (NOTE)

13 ML Pascal Memo (LVAR)

14 NU Unsigned

15 N+ Autoincremented Integer

16 LI Bit

17 NS Numeric STS

18 NA Numeric SA

19 NC Currency

20 CD TimeStamp (DateTime)

21 MB Blob (LongVarBinary)

25 CW Wstring

26 C0 WZString

Example(s)

? BT_CVTYPE(10)

?BT_CVTYPE("CL")