Selecting option F from the Main Menu invokes the File Maintenance menu:
14:42:25 ***** A D A B A S BASIC SERVICES ***** 2002-05-29 - File Maintenance - PFL0002 Code Service ---- ------------------------------ C Define/modify FDT * Release descriptor * Delete existing file * Define new file * Modify file parameters * Reorder file online * Refresh file to empty status * Allocate/deallocate file space * Maintain expanded files ? Help . Exit ---- ------------------------------ Code ......... _ File No ...... 0 Descriptor Name .. __ Database ID .. 1955 (WIS1955) Command ==> PF1----- PF2------ PF3------ PF4------ PF6----- PF7----- PF8----- PF12----- Help Exit Menu |
From the File Maintenance menu, option C displays the FDT/SDT Definition / Modification menu:
15:34:30 ***** A D A B A S BASIC SERVICES ***** 1998-07-30 - FDT/SDT Definition / Modification - PFLC002 Code Service ---- ------------------- * Add new field(s) * Change field length D Define new FDT * Online invert * Define/add SDT ? Help . Exit ---- ------------------- Code ......... _ File No. ..... 50 Field Name ... __ Database ID .. 105 (RD-MPM105) Command ==> PF1----- PF2------ PF3------ PF4------ PF6----- PF7----- PF8----- PF12----- Help Def. File Exit Menu |
From the FDT/SDT Definition / Modification menu, option D displays the Define FDT screen, which can be used to define a new FDT for a new file:
5:13:34 ***** A D A B A S BASIC SERVICES ***** 1997-02-12 DBID 105 - Define FDT - PFLCD02 File Number ... 200 New FDT ... Y Enter Field Description(s) : I Level I Name I Length I Format I Options I I------------------------------------------------------- I __ I __ I ___ I _ I __ __ __ __ __ I I __ I __ I ___ I _ I __ __ __ __ __ I I __ I __ I ___ I _ I __ __ __ __ __ I I __ I __ I ___ I _ I __ __ __ __ __ I I __ I __ I ___ I _ I __ __ __ __ __ I I __ I __ I ___ I _ I __ __ __ __ __ I I __ I __ I ___ I _ I __ __ __ __ __ I I __ I __ I ___ I _ I __ __ __ __ __ I I __ I __ I ___ I _ I __ __ __ __ __ I I __ I __ I ___ I _ I __ __ __ __ __ I PF1----- PF2------ PF3------ PF4------ PF6----- PF7----- PF8----- PF12----- Help Exit Menu |
FDTs for existing files cannot be redefined with this option.
This function corresponds to the Adabas utility function ADACMP COMPRESS.