Sybase InfoMaker 11.5, CD, Win, ENG Specifications Page 560

  • Download
  • Add to my manuals
  • Print
  • Page
    / 828
  • Table of contents
  • BOOKMARKS
  • Rated. / 5. Based on customer reviews
Page view 559
Specifying update when key is modified
538 InfoMaker
How to choose a
setting
Consider the following when choosing the Key Modification setting:
If multiple rows are changed,
DELETE and INSERT always work. In some
DBMSs,
UPDATE fails if the user modifies two keys and sets the value in
one row to the original value of the other row.
You might choose the setting here based on your DBMS triggers. For
example, if there is an Insert trigger, select Use Delete then Insert.
If only one row can be modified by the user before the database is updated,
use
UPDATE because it is faster.
Page view 559
1 2 ... 555 556 557 558 559 560 561 562 563 564 565 ... 827 828

Comments to this Manuals

No comments