How sap extract data if no data exists for logged in language

Hello Guys,

I need a concrete answer if anybody knows it; I am trying to implement the way sap extract data from text tables. how SAP behaves when there is no data for any text table in the logged in language? here is a scenario i want to put on

SAP logon language: JA (Japanese)

Supplementary language: KO (Korean)

System language: English

Secondary language: German

in text table i have data in only say English.

What i know the sequence should be:

SAP logon language: JA (Japanese) >> Supplementary language: KO (Korean) >> System language: English >> Secondary language: German

is this the right sequence? any suggestion.

Thanks

Mani