Rockwell Automation FactoryTalk Historian SE ProcessBook 3.2 User Guide - Manual (Page 285)

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3. Click File > Return to ProcBook when you are finished.
Microsoft Query cannot edit query statements that contain
placeholders.
If the Design button is disabled, then:
If Microsoft Query is not installed, the Design button is disabled;
however, you can type the query in the query text box. You can also
copy and paste a query from another query building tool.
6. Add or edit the appropriate WHERE clause in the query to edit a
placeholder data set or existing placeholders (question marks represent
placeholders in the query statement).
7. Click Placeholders. This action causes the syntax of the query to be
checked.
If the syntax is valid, then the Placeholders dialog box displays with
the current placeholders. If the syntax is invalid, then an invalid query
message is displayed.
8. Click Check Syntax, to complete a syntax check of your query. The
status of the query is returned.
9. When you have finished modifying the data set, click OK.
If the data set is in use in a display, the Confirm Data Set
Modification dialog box displays.
10. If you wish to proceed, click Continue. The Data Sets dialog box
appears.
11. Select the column(s) to be used and click OK to return to the dialog
box.