counting records in Visual Composer

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Hi folks,

I do have question I cannot find a solution ( maybe due to christmas turkey paralysis 😊 )

I am using VC to call a RFC function in ERP system 'RFC_READ_TABLE' to access data from table.

The table I access is a customer table containing Delta- Data

Actually the system RFC function returns all records ( normally between 1 and 10 records).

On VC side I'd like to display only the number of records to inform if new data is available.

How can I count records internally in VC?

( I do not like to bring in data directly into BI because the application I write will merge BI Query data with non BI data)

I'D like to use standard RFC function to receive data, but first hand I'd like to decide by number of entries whether to use data or not.

Any help is appreciated

TIA