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Oracle® Database Gateway for Adabas User's Guide
11g Release 1 (11.1)

B31055-01
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A Data Type Conversion

This appendix contains the following section:

A.1 Conversion of Predict Metadata

The gateway converts Predict metadata data types in the advanced data dictionary (ADD) to Oracle data types as described in Table A-1.

Table A-1 Predict Metadata

ADD Data Type Oracle Data Type Details

A

VARCHAR2

A null-terminated string of alphanumeric characters; maximum length must be specified. An extra byte is required for the null flag.

B1

Number(3)

Unsigned byte integer.

Size: 1 byte

Range: 0 to +254

B2

Number(5)

Unsigned word integer.

Size: 2 bytes

Range: 0 to +65535

B4

Number(10)

Unsigned long integer.

Size: 4 bytes

Range: 0 to +4,294,967,294

F1

Number(3)

Signed byte integer.

Size: 1 byte

Signed range: -128 to +127

F2

Number(5)

Signed word integer.

Size: 2 bytes

Signed Range: -32768 to +32767

F4

Number(10)

Signed long integer.

Size: 4 bytes

Range: -2147483648 to 2147483647

F8

Number(19)

Signed long integer.

Size: 8 bytes

Range: -9223372036854775808 to +9223372036854775807

G4

FLOAT(23)

Single floating-point number (F_FLOAT).

Size: 4 bytes

Range: 0.29E-38 to 1.7E38

Precision: 6 digits

G8

FLOAT(49)

Double floating-point number (D_FLOAT)

Size: 8 bytes

Range: 029E-38 to 1.7E38

Precision: 16 digits

L

NUMBER(3)

Unsigned byte integer.

Size: 1 byte

Values: 1 for true, 0 for false

D

DATE

ODBC date format.

T

DATE

ODBC time format.

P

NUMBER

Packed decimal

Maximum number of digits: 31

Maximum fractions: 11

Length = int (number of digits/2) + 1 byte

N, U

NUMBER

Signed numeric string. A right overpunched sign is implemented.

Maximum number of digits: 31

Maximum fractions: 11


A.2 Conversion of Metadata from DDM Files

When you import metadata from a DDM file, the gateway maps the metadata data types as described in Table A-2.

Table A-2 Metadata from DDM Files

DDM/Natural Data Type ADD-Adabas Data Type Oracle Data Type Details

A

string

VARCHAR2

A null-terminated string of alphanumeric characters; maximum length must be specified. An extra byte is required for the null flag.

B1

Uint1

Number(3)

Unsigned byte integer.

Size: 1 byte

Range: 0 to +254

B2

Uint2

Number(5)

Unsigned word integer.

Size: 2 bytes

Range: 0 to +65535

B4

Uint4

Number(10)

Unsigned long integer.

Size: 4 bytes

Range: 0 to +4,294,967,294

I1

Int1

Number(3)

Signed byte integer.

Size: 1 byte

Signed range: -128 to +127

I2

Int2

Number(5)

Signed word integer.

Size: 2 bytes

Signed range: -32768 to +32767

I4

Int4

Number(10)

Signed long integer.

Size: 4 bytes

Range: -2147483648 to 2147483647

I8

Int8

Number(19)

Signed long integer.

Size: 8 bytes

Range: -9223372036854775808 to +9223372036854775807

F4

single

FLOAT(23)

Single floating-point number (F_FLOAT).

Size: 4 bytes

Range: 0.29E-38 to 1.7E38

Precision: 6 digits

F8

dfloat

Number(5)

Double floating-point number (D_FLOAT)

Size: 8 bytes

Range: 0.29E-38 to 1.7E38

Precision: 16 digits

L

Unit1

Number(3)

Unsigned byte integer.

Size: 1 byte

Values: 1 for true, 0 for false

D

ada_d_time

DATE

ODBC date format.

T

ada_time

DATE

ODBC time format.

P

decimal

NUMBER

Packed decimal

Maximum number of digits: 31

Maximum fraction: 11

Length = int (number of digits/2) + 1 byte

N, U

ada_numstr_s

NUMBER

Signed numeric string

Maximum number of digits: 31

Maximum fractions: 11