FATS - Fast Access Tree System
Table of Contents
List of Commands
"R" Replace Single Key

"R" Replace Single Key


Command string:

CMND$ = "R\{KeyNo}\{RecNo}\{FileNo}\{KeyStrOld}\{KeyStrNew}"

KeyNoKey number
RecNo Record number
FileNo File number
KeyStrOldOld key value
KeyStrNewNew key value

Purpose:

Updates the specified key to the new key value.

Description:

This command changes the key value "KeyStrOld" of the record specified over the variable "RecNo" into the new key value "KeyStrNew" with the same record number.

Parameters returned:

ERRORCODE:Errorcode or 0 (no error)
RECNO:Undefined
FATSKEY:Undefined

Example:

CMND$ = "R\1\"+STR$(RECNO)+"\1\"+KeyStrOld$+"\"+KeyStrNew$

 BASIC Example

See also:

 "1" Insert Single Key; page 4-6
 "2" Delete Single Key; page 4-8


 

© 2008  GCS Software, Udo Gertz