HOW TO
When using string functions such as title or replace in the Calculate Fields tool to replace an upper case letter with a lower case in a string field, only specific letters are replaced. To convert all upper case letters in a string field to lower case, use the .lower() function instead.
In this example, all the upper case letters under the CITY field of the attribute table are converted to lower case.
Complete the steps below to convert all the upper case letters in a string field to lower case using the Calculate Fields tool.
Note: Set the filter to Text helper type to make the search for the .lower() function easier.
The expression reads as follows:
!<layer name>!.lower()
In this example, the expression reads:
!CITY!.lower()
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