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— Predefined Object Types in Predict —

Adabas Files, File Type A

The following topics are covered below:

Add/Modify a File
Modifying Adabas Attributes
Phys. distribution attr.
Adabas Security Definition
Extent Allocation - Size Specifications For More Than One Extent
Modifying ADAM Descriptor Definition
Encodings

Add/Modify a File

Adabas file attributes

Note:
Parameters common to all object types are described under Global Attributes. For parameters common to all file types, see Common File Attributes.

Parameters
Sequence field	The descriptor to be used by Natural for logical sequential reading. Determines the sequence in which records are delivered by the READ LOGICAL statement. The GENERATE DDM function will use this field as the default READ LOGICAL field in the Natural data definition module.
Vista Access DBnr, Vista Access Fnr	The L-DBnr and L-Fnr are used as database and file number for function Generate DDM if the parameter Use Vista access-nr is set to Y or T in the Generate DDM menu. Valid values are 0 to 65535 for DBnr and Fnr. No check for uniqueness is performed. Note: This parameter should not be confused with the Vista parameter Vista number, which is used to identify a file uniquely within a network. See Including the Definition in the Vista Table in the section Adabas Vista in the Predict and Other Systems documentation
Adabas SQL usage	File is accessible via Adabas SQL Server.

Modifying Adabas Attributes

This can only be defined via the "Contains FI" association of the object type Database.

When the node for such a type of association is expanded in the list of all documentation objects, you can select a field and choose Attributes of Link from the context menu.

Note:
If you do not modify the values in this window, the default values set in the Default Adabas Attributes screen are taken. See the Predict Administration documentation.

Base attributes

Parameters
Required attributes
Phys. file number	If a database is specified, the file number is taken as a physical file number automatically if this is possible.
AssociatedLOB file number	An associated LOB file can be specified for a base file containing fields of type LO. Whenever the number of an associated LOB file is entered in the Adabas attributes of a base file, an own set of Adabas attributes is stored for SAG-ADA-LOB having the specified file number.
Min ISN	ADALOD LOAD parameter MINISN.
Max ISN	ADALOD LOAD parameter MAXISN.

Device and Size Specification for Adabas Files

The device type and the size of the Upper Index (UI), Normal Index (NI) and Data Storage (DS) can be specified.

Four characters specify the type of device used to store this part of the file. This device type must already be defined in the Predict database object containing this file. When this device type is changed in the database, the same change should be made in every file object contained in the database.

DATA padding factor	ADALOD LOAD parameter DATAPFAC.
ASSO padding factor	ADALOD LOAD parameter ASSOPFAC.
Device	The device type of the Upper Index (UI), Normal Index (NI) and Data Storage (DS). The device type for Data Storage is ADALOD LOAD parameter DSDEV.
Size (Cylinders/Blocks)	ADALOD LOAD parameters UISIZE (Upper Index), NISIZE (Normal Index) and DSSIZE (Data Storage).

Note:
See also Extent Allocation.

Loading attributes
Max recl.	ADALOD LOAD parameter MAXRECL.
ISN reusage	ADALOD LOAD parameter ISNREUSE.
User ISN	ADALOD LOAD parameter USERISN.
One AC extent	ADALOD LOAD parameter NOACEXTENSION.
DS reusage	ADALOD LOAD parameter DSREUSE.
Maximum secondary allocation	ADALOD LOAD parameters MAXUI (Upper Index), MAXNI (Normal Index) and MAXDS (Data Storage).

For attributes on the Base Attibutes tab not described in this section, see Miscellaneous Attributes.

Phys. distribution attr.

This can only be defined via the "Contains FI" association of the object type Database.

When the node for such a type of association is expanded in the list of all documentation objects, you can select a field and choose Attributes of Link from the context menu.

Parameters

Phys. distribution type

Physical distribution Type		Logical distribution Type
The types for the physical file are limited by the logical distribution type, as shown below:
E	expanded	E	expanded
P	partitioned	P	partitioned
blank	simple File	any

Adabas Security Definition

This can only be defined via the "Contains FI" association of the object type Database.

When the node for such a type of association is expanded in the list of all documentation objects, you can select a field and choose Attributes of Link from the context menu.

Adabas security definition

Parameters
Access level	The Adabas access security level of the file.
Update level	The Adabas update security level of the file.

Base attributes

Parameters

Ciphered

Y	The file is a ciphered file.

Length Owner ID

Length of internal Owner ID of a multi-client file.

Refresh from program

Adabas parameter PGMREFRESH. See the Adabas DBA documentation.

Automatic allocation

Y	Adabas will automatically allocate and deallocate extents. See the Adabas Reference documentation.

PLOG

Y	Database runs with protection log. UNIX only.

ISN Size

Length of ISN.

Valid values: 0, 2, 3 and 4.

For Adabas/UNIX: 0, 2 and 4 are valid.

For mainframes: 0, 3 and 4 are valid.

Erase

Y	For Adabas/UNIX. All index and data storage blocks are overwritten with zeroes when they are returned to the free space table.

Index compression

Y	Adabas reduces space requirements for the index and for data storage by removing redundant information on an individual descriptor basis.

No BT file

Y	Exclude file from BACKOUT TRANSACTION processing.

Record spanning

Spanned	When record spanning is enabled, the size of compressed records in a file may exceed the maximum data storage block size. Default is Y.
Max secondary ISN	Defines the initial size of secondary ISNs.
Secondary start RABN	If spanned records are used, a secondary address converter is used to map the secondary ISNs to the RABNs of the Data Storage blocks where the secondary records are stored.

Max occ system fields

This parameter specifies the maximum number of values generated for a system-generated multiple-value field.

For attributes on the Base Attibutes tab not described in this section, see Modifying Adabas Attributes.

Extent Allocation - Size Specifications For More Than One Extent

This can only be defined via the "Contains FI" association of the object type Database.

When the node for such a type of association is expanded in the list of all documentation objects, you can select a field and choose Attributes of Link from the context menu.

More than one extent can be specified.

The size and first RABN (Start) of the Address Converter (AC), Upper Index (UI), Normal Index (NI) and Data Storage (DS) can be specified for up to 99 extents. The scroll bars are activated when more than one extent has been specified.

Extent allocation

Modifying ADAM Descriptor Definition

This can only be defined via the "Contains FI" association of the object type Database.

When the node for such a type of association is expanded in the list of all documentation objects, you can select a field and choose Attributes of Link from the context menu.

Adabas security definition

Parameters
ADAM descriptor	Fields to be used as ADAM descriptor. ADALOD LOAD parameter ADAMDE.
ADAM parm	ADALOD LOAD parameter ADAMPARM.
ADAM overflow	ADALOD LOAD parameter ADAMOFLOW.

Encodings

This can only be defined via the "Contains FI" association of the object type Database.

When the node for such a type of association is expanded in the list of all documentation objects, you can select a field and choose Attributes of Link from the context menu.

Universal encoding support of an Adabas file can be defined in the tab shown below.

Note:
See the Adabas Administration documentation for further information on this topic.

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