There is a requirement within JasperSoft reports where a subset of a text field is required to be reported on.
For example, Left(Description, 100) will return the 100 leftmost characters.
This is a common function in databases, spreadsheets, etc.
Service Management 17.x
All Supported Windows Operating Systems
JasperSoft has its own built-in functions to be used for Adhoc Views. Although JasperSoft does not have Left, Substring, and Right Functions specifically, you can use the Mid function instead.
The description of the Mid function is below:
Given a text string, returns the substring starting at Integer1 with length Integer2.
Mid("Phone", 1, 3) — Given an American phone number starting with a 3-digit area code, extracts the area code.
Note that "Phone" is the field name.
For Left function, an example would be:
Mid("product_name", 1, 5)
For Right function, it is more tricky as the length of the string can be a variable. However, you can make use of the Length function together with the Mid function like this:
Mid("product_name", Length("product_name") - 3, Length("product_name"))
Built-in functions for calculated fields are documented in the TIBCO JasperReports Server User Guide:
In this section, you will find information about the Mid function.
NOTE: Custom report writing is outside the scope of Broadcom Support. The information provided in this KB article is provided only as general guidance.