RFC_READ_TABLE Restrictions #
Especially with older SAP releases you may encounter a few restrictions when using the SAP standard function module (RFC_READ_TABLE) for table extraction:
- The overall width of all columns to be extracted must not exceed 512 bytes.
- Depending on the SAP version there may be other restrictions. It is not possible to extract data from tables that contain one or more columns of the data type f (FLTP, floating point), DEC (decimal, e.g. for percentage) or x (RAW, LRAW).
- Poor extraction performance with larger tables.
When facing restrictions, install the Theobald Software custom function module /THEO/READ_TABLE on your SAP system.
Warning! Error while converting value ‘*.0’ of row 1530, column 3
The SAP standard module RFC_READ_TABLE for table extraction can only extract the ABAP data type DEC to a limited extent. This leads to the mentioned example error during extraction. Use the function module from Theobald Software /THEO/READ_TABLE.
Installation of /THEO/READ_TABLE #
An SAP transport request for the installation of the function module is provided in the installation directory:
Transport requests are imported into SAP by your SAP Basis team.
Note: Take a look at the README.pdf in the installation directory (e.g.,
C:\Program Files\XtractProduct\ABAP\README.pdf) before installing any custom function modules.
There are two custom function modules available for Table extractions:
We recommend installing the latest custom function module THEO/READ_TABLE:
THEO_READ_TABLE_740SP05.zip- compatible with ABAP version 7.40 SP05 and higher
THEO_READ_TABLE_710.zip- compatible with ABAP version 7.10 and higher
THEO_READ_TABLE_640.zip- compatible with ABAP versions from 6.40 until 7.03
THEO_READ_TABLE_46C.zip- compatible with ABAP versions from 4.6C until 6.40
When importing the transport requests on older SAP releases a syntax error may occur. Contact Theobald Support and send the dedicated error message text.
Testing the module in SAP
Warning! Generating Short Dumps
The function modules /THEO/READ_TABLE and Z_THEO_READ_TABLE can only be called by Theobald products due to the callback function of the module. Testing the function modules on an SAP system is therefore not possible.