Referential Integrity
Reader's Clinic - Related Windows
QTIPS - Improving the LH_VERIFY Window
Vroom
RTP Series - RTP32
Utility Diskette # 3 - Part I
Referential Integrity
Referential Integrity
Redefining Keys
Referential Integrity
@ATTACK - @Edit.Keys
@ATTACK - @Environ.Keys
@ATTACK - @Int.Const
@ATTACK - @Move.Keys
@ATTACK - @Priority.Int
@ATTACK - @Macro.Keys
@ATTACK - @Macro.Mode
Playing with Scan Codes
Uncommon Knowledge - WC_Unkeys%
Uncommon Knowledge - WC_Except_Keys%
Uncommon Knowledge - WC_Soft_Keys%
QTIPS - DOS File Names
DOS Interfacing (Part II)
VERBatim - V116
@ATTACK - @Pri.File
@ATTACK - @Rollout.File
File Variables
How Indexes Are Updated
Index Record Layouts
QTIPS - File Variable of File In SELECT Statement
QTIPS - Amending non-Attached Files
LINEAR HASH FILE STRUCTURES - Part 1
Index Flush
QTIPS - File Handle Structure
RTP Series - RTP50
@ATTACK - @Messages
Advanced Revelation Initialisation Sequence (Overview) by Mike Pope
Caching in on the Frames Array - Mike Pope
VERBatim - V17
VERBatim - V6
VERBatim - V125
Utility Diskette # 3 - Part I
Version 3 Technical Highlights - Copying Rows Programmatically
Version 3 TCL Subroutines - Copying Rows
How Indexes Are Updated
QTIPS - Unexpected/Unwanted Modification Of Record On Write
Reader's Clinic - Page Marks in Windows

RevMedia FKB

DocumentV4I10A8
TitleQTIPS - Unexpected/Unwanted Modification Of Record On Write
KeywordsWRITE
SI.MFS
TextIt is well known that when writing a record containing relationally indexed
keys (related FROM rather than related to) to disk any programmatic
modifications made to the field containing the key list will be ignored
This ensures referential integrity What is less obvious is that the record
being written to disk is actually changed by SI MFS if the keys on file do
not correspond to the keys in the memory copy Thus a write can actually
change the contents of the record being written! This can lead to unexpected
consequences so bear it in mind


(Volume 4 Issue 10 Page 8)
[revmedia/copyrigh.htm]

Page last modified: 31/01/03