Getting Startedwith pureQuery

Chapter 4 – pureQuery tooling views 85
Figure 4.11 - pureQueryXML editor
If you notice a statement that is not very efficient, you may want to replace it with a more
optimal one. However, you may not have the source code to change this statement or the
change may be considered too risky.
For example, you may want to change a statement to take advantage of a newly added
index, to limit the number of rows returned or simply to add an ORDER BY clause. With the
pureQueryXML editor, you can edit the statement by providing an alterative one that is
equivalent but better in performance. This alternative statement will now be executed and
included in your database package when you execute the bind operation, as shown in
Figure 4.12. For further details refer to the ODS build-in documentation or refer to the
article at https://www.ibm.com/developerworks/data/library/techarticle/dm-0812surange/
Figure 4.12 - pureQueryXML editor—providing a more optimal statement