How to use Excel Data Model & Relationships

Share

Facebook
Twitter
LinkedIn

Have you ever been in a VLOOKUP hell?

Its what happens when you have to write a lot of vlookup formulas before you can start analyzing your data. Every day, millions of analysts and managers enter VLOOKUP hell and suffer. They connect table 1 with table 2 so that all the data needed for making that pivot report is on one place. If you are one of those, then you are going to love Excel’s data model & relationships feature.

Table relationships & Data model feature of Excel - cartoon

In simple words, this feature helps you connect one set of data with another set of data so that you can create combined pivot reports.

Practical Example – V(X)LOOKUP hell vs. Data Model heaven

Lets say you are looking sales data for your company. You have transaction data like below.

Example data

And you want to find out how many units you are selling by product category and customer’s gender.

Unfortunately, you only have product ID & customer ID.

With VLOOKUP Hell,

  1. You first fetch all the customer and product data and place them in separate ranges.
  2. Then write a vlookup formula to fetch product category, another to fetch customer gender.
  3. Then fill down the formulas for entire list of transactions.
  4. Now make a pivot table.

Assuming you have 30,000 transactions, you have to write 60,000 VLOOKUP formulas to create this one report!!!

With Data Model heaven,

  1. Create relationships between Sales, Products & Customer tables
  2. Create a pivot table

Creating a relationship in Excel – Step by Step tutorial

  1. Relationship feature in Excel 2013 data ribbon tab
    First set up your data as tables. To create a table, select any cell in range and press CTRL+T. Specify a name for your table from design tab. Read introduction to Excel tables to understand more.
  2. Now, go to data ribbon & click on relationships button.
  3. Click New to create a new relationship.
  4. Select Source table & column name. Map it to target table & column name. It does not matter which order you use here. Excel is smart enough to adjust the relationship.
    Creating a new relationship in Excel 2013 - how to?
  5. Add more relationships as needed.

Using relationships in Pivot reports & analysis

  1. Select any table and insert a pivot table (Insert > Pivot table, more on Pivot tables).
  2. Make sure you check the “Add this data to data model” check box.
    Adding a pivot table with data model in Excel 2013
  3. In your pivot table field list, check “ALL” instead of “ACTIVE” to see all table names.
  4. Select fields from various tables to create a combined pivot report or pivot chart

Example: Category & Gender Sales Report

  1. Add category to row labels
  2. Add gender to column labels
  3. Add quantity to values
  4. and your report is ready!
Example Pivot report made with Excel data model

Things to keep in mind when you using relationships

  • Same data types in both columns: Columns that you are connecting in both tables should have same data type (ie both numbers or dates or text etc.)
  • One to one or One to many relationships only: Excel 2013 supports only one to many or one to one relationships. That means one of the tables must have no duplicate values on the column you are linking to. (for example products table should not have duplicate product IDs).
  • You can add slicers too: You can slice these pivot tables on any field you want (just like normal pivot tables). For example, you can further slice the above report on customer’s profession or product’s SKU size.

Benefits of Data Model based Pivot Tables

Once you have a data model in spreadsheet, you will enjoy several benefits (apart from multi-table pivots that is). They are,

  • Distinct counts: This simple but often tricky to calculate number is easy to get once you have data model based pivot. Just go to value field settings and change the summary type to “Distinct count”. Here is a tip explaining how to get distinct counts in Excel pivots.
  • Measures & DAX: Once you have a Data Model, you can unleash the full Power Pivot features on your workbook. You can create measures (using DAX language) and calculate things that are otherwise impossible with regular Excel. Here is an example of percentage of something calculation with DAX & Data Model, to get started.
  • Pivots from data in other files & databases: You can combine data model with the abilities of Power Query to create pivots from data in other places. For example, you can make a pivot from sales data in SAP with customer data in CRM system. Here is an overview of what is Power Query?
  • Pivots from more than 1mn rows of data: You can connect to very large datasets and make pivots from them with the help of data model. Here is a demo of how to set up data model for 1+mn rows of data.
  • Convert Pivot Tables to formulas: Once you have a data model based pivot table, you can turn it in to a set of formulas. You can access this feature from “Analyze” ribbon. This will replace your pivot with a bunch of CUBE formulas. Here is an overview of CUBE formulas.

Drawbacks of Data Model:

Of course, its not all cup cakes and coffee with Data Model. There are a few drawbacks of data model based pivot tables.

  • Compatibility: Data model & relationship feature is available only in Excel 2013 or above. This means, you cannot create or share such pivot reports with people using older versions of Excel.
  • Not able to group data: In regular Pivot Tables, you can group numeric, data or text fields. But with data model pivot tables, you can no longer group data. You must create another table with the group mapping and use it as a relationship.

Download Example File

Click here to download Excel data model demo file. It contains 3 different tables and a combined pivot report (with slicer) to show you what is possible.

Do you use relationships?

Ever since discovering PowerPivot, I kind of stopped using VLOOKUP (or XLOOKUP) for most of my own analysis. Now that relationships are part of main Excel functionality, I am using them even more.

What about you? Are you using relationships & data model in Excel? What cool things are you doing with it? Share your tips with us using comments.

Want even more? Try PowerPivot

If you want even more out of your reports, then try PowerPivot. It is a new feature in Excel 2013 (available as add-in in Excel 2010) that can let you do lots of powerful analysis on massive amounts of data. Here is an introduction to PowerPivot.

Facebook
Twitter
LinkedIn

Share this tip with your colleagues

Excel and Power BI tips - Chandoo.org Newsletter

Get FREE Excel + Power BI Tips

Simple, fun and useful emails, once per week.

Learn & be awesome.

Welcome to Chandoo.org

Thank you so much for visiting. My aim is to make you awesome in Excel & Power BI. I do this by sharing videos, tips, examples and downloads on this website. There are more than 1,000 pages with all things Excel, Power BI, Dashboards & VBA here. Go ahead and spend few minutes to be AWESOME.

Read my storyFREE Excel tips book

Overall I learned a lot and I thought you did a great job of explaining how to do things. This will definitely elevate my reporting in the future.
Rebekah S
Reporting Analyst
Excel formula list - 100+ examples and howto guide for you

From simple to complex, there is a formula for every occasion. Check out the list now.

Calendars, invoices, trackers and much more. All free, fun and fantastic.

Advanced Pivot Table tricks

Power Query, Data model, DAX, Filters, Slicers, Conditional formats and beautiful charts. It's all here.

Still on fence about Power BI? In this getting started guide, learn what is Power BI, how to get it and how to create your first report from scratch.

28 Responses to “2010 Calendar – Excel Template [Downloads]”

  1. [...] Download and print the calendars today. You can add notes to individual dates or complete … [...] Uni Ego / Free 2010 Calendar – Download and Print Year 2010 Calendar today [...]

  2. William says:

    Afternoon,

    I have one similar calander that I added conditional formatting to so that I could highlight any planned factory holidays. I think i "borrowed" the formula from another calander so I won't post it here.

    I also added week numbers to it using the formula =WEEKNUM(MAX(C6:I6)) Where C6:I6 is the range of dates in that give week. It works fine on most of the months but return strange values on other months (Week 6 in October?) I can't see any logic behind why it does this.
    Any suggestions for an alternative formula to give the week numbers?

    Regards,

    William

  3. Miguel says:

    Hi Chandoo,
    I've added a new feature on your spreadsheet.
    This control can be useful for all the sheets where you need to check dates.

    Cheers

    http://cid-69a78592a23a8438.skydrive.live.com/self.aspx/.Public/2010-calendar%5E_Miguel.xls

  4. Nimesh says:

    Hi Chandoo,

    Nice calendar.
    Till now whichever calendar I saw in Excel, it contained only the outline sheet.
    Good to see monthly views and the mini view too.
    Liked the mini view much. 🙂

    -Nimesh

  5. Chandoo says:

    @William: This weeknum may be because the input dates to max are not properly formatting as excel dates.

    Good tip on the conditional formatting and holidays btw...

    @Migueal: Now that is super awesome. This is the reason why I love to blog. Readers will always one up me with such cool alternatives. Thank you for sharing this with us.

    @Nimesh: You are welcome 🙂

  6. Shish says:

    is it possible to get the Notes section on the outline page to display the notes added to the month page for a specific date?

    So if you add thing for January 2nd, and then select January 2nd those notes appear on the outline page

  7. Chandoo says:

    @Shish... You can do that using some formula magic. I would not recommend pushing excel to that as outlook / google calendar / icalc etc. do exactly that much more elegantly.

  8. Jörg says:

    Happy christmas to all of you!
    This is really awesome. The nicest calender I've seen for Excel. I also like Miguels version of the sheet.

    Just one "feature" is missing to me. As I live in Germany - where weeks start on Monday - I'd like to change this. Could someone please give me a hint how to do this?

    Thanks in advance

    Jörg

  9. Pedro says:

    Hi Chandoo, I’ve added some new features on your spreadsheet with your permission.

    Check it here:
    http://cid-6b219f16da7128e3.skydrive.live.com/self.aspx/.Public/Calendar%5E_Pedro.xlsm

    Miguel, this calendar is translated to Spanish language.

    Jörg, this new approach allows us to start weeks on Monday.

    Also it's possible to start weeks on Sunday if you enable Excel macros and push the arrows.
    Best Regards,
    Pedro.

  10. Chandoo says:

    @Pedro.. superb stuff.. thanks for sharing the file with all of us.

  11. Pedro says:

    Hi Chandoo, for dates before March 1, 1900 our calendars are wrong.
    In Microsoft Excel, DATE, EOMONTH, WEEKDAY functions return an incorrect result between Monday, January 1, 1900 and Wednesday, February 28, 1900.
    See this page: http://support.microsoft.com/kb/214326/en-us/
    Microsoft Excel incorrectly assumes that the year 1900 is a leap year in all Excel versions.
    That's the reason why our calendar versions only work from March, 1, 1900 until December, 31, 9999.
    Your comments are welcome.
    Pedro.

  12. Chandoo says:

    @Pedro.. Thanks for pointing that out. wow... This reminds me of the Joel Spolsky's first BillG review - http://www.joelonsoftware.com/items/2006/06/16.html (read it, I am sure you would love it.) when Bill out of blue asks about date time implementations for VBA (which Joel is the program manager for...)

    Thanks for sharing the URL too... Here is a specially made, chocolate sprinkled, extra fluffy donut for you 🙂

  13. Pedro says:

    Hi Chandoo, thanks a lot for the donut but I prefer it without chocolate!

    Always it's good to know a little history of Excel.
    The Joel Spolsky’s last BillG Excel review was about the "Hall of Tortured Souls"
    (See this Excel 95 Easter Egg here: http://www.eeggs.com/items/719.html)

    Do not miss the humor!

  14. Pedro says:

    @Chandoo.. I just return with a new calendar version.
    http://cid-6b219f16da7128e3.skydrive.live.com/self.aspx/.Public/calendar-pedrowave.xltx

    It helped me to practice conditional formatting, formulas to show check boxes, data validation drop down list, find out Thanksgiving Day's date for any year, how to find dates of public holidays using Excel, all reading your wonderful posts!

  15. Pedro says:

    Perpetual Calendar Spanish version starting weeks on Monday:
    http://cid-6b219f16da7128e3.skydrive.live.com/self.aspx/.Public/calendario-pedrowave.xltx
    Main characteristics:
    - Not macros.
    - Select a year from 1900 to 9999 with a dropdown listbox.
    - All date fields with the real date format.
    - Easy language change of day of the week and month names because are also dates.
    - Hide Saturdays and/or Sundays.
    - Week starting on Sunday or Monday.
    - Week and month numbers.
    - Hyperlink between sheets.
    - Consistent colors to Holidays, Diary and Events dates.
    - Easy change of Holidays by country.
    - Include 80 World Days and you can add more.
    - A diary with my birthday and 50 more programable appointments.
    - Check box to hide individual dates or all.
    - Holidays, diary and events text are showed on each month's sheet.
    - Ranges defined with Name Manager variables.
    I'll appreciate if you make me some suggestions to improve this calendar.
    Pedro.

  16. Joco1114 says:

    Please, I need help!
    I like all calendar from Pedro, thank you for them. Let me show my problem:

    I have 2 excel cells (for example AE12 and AE13) which mean the starting and the ending date of my duty. I need a macro to insert sheets with label YEAR. MONTH (for example 2010. August or similar) with the proper datas between the two dates. Is it possible?

    Thank you for reading me and sorry about my terribel english! 🙂

  17. Peter says:

    Hello Pedro,

    Thanks so much for the modified calendar template. I love the extra functionality you added. Is there any way you could upload an unlocked version? I wanted to change some of the comments and data validation so I could use it for one of my applications.

    As for feedback on potential improvements, with all the additions you made the file runs pretty slow. I'm sure this has to do with all the interconnectivity between the various tabs, but if there is a way to use less memory via more efficient formulas or something else I think this would make it easier to use. I have a brand new computer and with it running alone the response was pretty slow. One of the changes I'm making is changing the order of the months to match my company's fiscal year, so maybe something to automate a change like that could be useful.

    Cheers,

    Peter

  18. Pedro Wave says:

    Peter, my calendars are unlocked but you need Excel 2007 and 2010 versions to open them.

    Now I return with a new Programmable Task Calendar:
    http://cid-6b219f16da7128e3.office.live.com/view.aspx/.Public/Calendario%20de%20Tareas.xlsx

    Wath an introductory video here:
    http://pedrowave.blogspot.com/2010/10/programmable-task-calendar.html

    This new calendar allows to select the start month to match the school and fiscal year.

  19. ASA says:

    This is great stuff Chandoo and company

    Wanted to know if someone had built something similar

    I need to store one Excel Sheet on this calendar that has all the holidays

    US Holidays appear in RED
    UK Holidays appear in Blue
    Meetings appear in Green
    Submissions appear in Orange

    Is there a way I can store the list in a separate worksheet and all the calendars get updated with this?

    Thanks

  20. divya says:

    please tell me "how to convert Rs.10000/- in to words through excel formula

  21. [...] is all! http://chandoo.org/wp/2009/12/11/2010-calendar-excel-template-downloads/ See more Templates at http://www.vertex42.com/ Share this:Like this:LikeBe the first to like this [...]

  22. Kerisa says:

    Greetings,

    Thanks for this wonderful excel vacation tracker. I notice that the tracker only has three months November, December and January 2015, however, I would like to add the other ten months for 2014. Can you please instruct me on how I can add the other months?
    Thanking you in advance.

  23. kanu bhatia says:

    Hi Chandoo,
    Calendar: can this be printed as single sheet 8.5x11 inch per month
    kanu

  24. Rahul says:

    WOW! I just searching some of like this, that help me.
    Thank you for sharing.

Leave a Reply