How to add Custom Color Palette in Tableau?

Tableau offers three types of color palettes: categorical, sequential, and diverging. You can create your own custom color palette by modifying the Preferences.tps file that comes with Tableau Desktop. The Preferences.tps file is located in the My Tableau Repository. The preferences file is a basic XML file that you can open in a text editor to modify. In tableau 9.0 version there is a color picker option.

TDE Limitations

1) TDE file size limitations is 2 GB to 200 GB.

2) Very tough algorithms are used to compress the data size in Tableau TDE .

3) TDE converts the data size into 0.1-2% of original data size.
it means 4 GB of Data in Oracle convert into 500 MB. 

Limitations of TDE (Extracts)

1) TDE file limitaion is 

How to add Custom Color to Tableau?

Adding a Custom Color refers to a power tool in Tableau. Restart you Tableau desktop once you save .tps file. From the Measures pane, drag the one you want to add color to Color. From the color legend menu arrow, select Edit Colors. When a dialog box opens, select the palette drop-down list and customize as per requirement.

How to remove All options from a Tableau auto-filter?

we can easily remove the "All" option from Filter, how that is right click on Filter, click on ‘Customize’ in the drop down and then deselect the ‘Show “All” Value’ attribute. It can be activated by checking the field again.

How many maximum tables can you join in Tableau?

The limitations while connecting from Tableau to Database is : The maximum number of 32 tables can be joined in Tableau. A table size must also be limited to 255 columns (fields).

How to do Performance Testing in Tableau?

Performance testing is again an important part of implementing tableau. This can be done by loading Testing Tableau Server with TabJolt, which is a “Point and Run” load generator created to perform QA. While TabJolt is not supported by tableau directly, it has to be installed using other open source products.