CM14 BI Publisher - modifying an existing Data Model, the Graphic View in Query Builder does not display

I am trying to edit the default forms/reports that come with CM14, trying to edit the data model, data set, (to get to the old Infomaker style graphic view) , the Query model does not display (error the list of tables is too long..) Oracle tell me the limit is 60, there are not 60 tables referenced in any CM report.
Does this Query builder view work at all on any report?
(bigger question, we are moving from CM12, should we move to CM13 which works with infomaker?)
Thanks,
Paul L

Kurt, thanks for your replies.
A couple of notes/clarifications.
1. You are correct that BI works better in Firefox--I have observed issues with the BI display when using IE. I would recommend using Firefox too.
2. You are correct about the way to get to the Query Builder to see a graphical view of data tables. There are basically two issues with this that I mentioned, but will re-iterate:
a. If you have an EXISTING query in the data set, then click the "Query Builder" button, this will remove the existing query that's there, it will NOT display the existing query in the query builder. Query Builder works only to create a NEW query from scratch.
b. Query builder is limited to selecting 60 fields max in your query. If you are creating a large report with many tables, you may find that 60 fields is not enough. For that you will have to work in the SQL edit screen rather than using the query builder.
I would impress on anyone developing CM14 reports that they become familiar with the database schema and relationships to avoid problems when developing your BI reports. You should be able to find the tables and joins documentation in the knowledgebase.

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I want to thank you, Tracy, for the all the help. I checked
out the examples you have at www.cflex.net and they are very
helpful. I bookmarked the site and will be using it as a resource
from now on.

CM14 BI Publisher - modifying an existing Data Model, the Graphic View in Query Builder does not display

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