Selecting File Maintenance (option "F") from the Adabas Online System main menu invokes File Maintenance menu:
08:02:59 ***** A D A B A S BASIC SERVICES ***** 2006-07-20
- File Maintenance - PFL0002
Code Service
---- ------------------------------
C Define/modify FDT
D Release descriptor
E Delete existing file
F Define new file
M Modify file parameters
O Reorder file online
R Refresh file to empty status
S Allocate/deallocate file space
X Maintain expanded files
? Help
. Exit
---- ------------------------------
Code ......... _
File No ...... 0 Descriptor Name .. __
Database ID .. 105 (RD-105)
Command ==>
PF1----- PF2------ PF3------ PF4------ PF6----- PF7----- PF8----- PF12-----
Help Exit Menu |
Options "C" (Define/modify FDT) and "X" (Maintain expanded files) on this menu display additional menus. The other file maintenance options require you to enter a valid file number and database ID. Option "D" (Release descriptor) also requires that you specify the name of the descriptor to be released.
The Adabas Online System File Maintenance documentation is organized in the following topics:
| Code | Function | |
|---|---|---|
 |
C | Define / Modify FDT allows you to change the length of a field; add a field to a file; create a new field definition table (FDT); or create a special descriptor table (SDT). |
|
D | Release Descriptor allows you to release a field from descriptor status by freeing the specified field's inverted list in the Associator. |
|
E | Delete Adabas File allows you to free extents used by an existing Adabas file. |
|
F | Define a New File allows you to define a new database file for which an FDT has already been created. |
|
M | Modify File Parameters allows you to modify the padding factor, the maximum compressed record length, file number, file name, extent allocation for NI/UI/AC/DS, ISN reusage, and DS reusage. |
|
O | Reorder File Online allows you to start a process to reorder the Associator, Data Storage, or the entire file. |
|
R | Refresh File to Empty Status allows you to delete all file records and assign a single extent to each file component. |
|
S | Allocate or Deallocate File allows you to create or remove extents for the address converter, normal and upper index, and Data Storage of a file. |
|
X | Maintain Expanded Files allows you to insert or remove a component file into/from an expanded file chain. |
