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GIS and Maps - Tabular Data

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  1. Sometimes the data tables I’m using work just fine when I join to shape files and other times some or all of my columns just have <null> in them. What is causing this and how can I fix it?

  2. Can I make changes to the data in the table?

  3. I need to connect to a Query that I created in Access. When I open the MDB file using Add Data, I can only see the tables in Access, but not the Queries. How can I connect to the Queries?

  4. I need to get a frequency (count) of how many times a value appears in my table. Can I do this in ArcMap?

  5. I need to generate statistics from the numeric values in my table. Can I do this in ArcMap?

  6. I have a table of latitude and longitude coordinates that I’d like to add to my map. When I try to display them using Display XY, nothing shows up on my map. What am I doing wrong?

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