ABAP Select data from SAP table W4WHT_EMP_TAX_EXMPT_CERT_CODE into internal table



Get Example source ABAP code based on a different SAP table
  

So we all know S/4Hana is the latest version and the future of SAP but what about the selecting data from hana tables like W4WHT_EMP_TAX_EXMPT_CERT_CODE is it the same and what the table looks like in an S/4 system. If you havent seen or logged into an S/4Hana system you might be surprised at how similar it looks to the previous ERP/ECC version. Infact when using the gui it is difficult to tell the difference, and selecting data from database tables the same is true. Infact even for tables that have been replaced in hana, SAP have purposfully created versions of the old/original tables for backward compatability. This means your existing ABAP code will still work while you implement changes that take advantage of the new functionality and Hana in-memory tables.

You can see what table W4WHT_EMP_TAX_EXMPT_CERT_CODE looks like in an S/4 system here and below is a number of ABAP code snippets to demonstrate how to select data from SAP W4WHT_EMP_TAX_EXMPT_CERT_CODE table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to W4WHT_EMP_TAX_EXMPT_CERT_CODE. See here for more generic Select statement tips.

DATA: IT_W4WHT_EMP_TAX_EXMPT_CERT_CODE TYPE STANDARD TABLE OF W4WHT_EMP_TAX_EXMPT_CERT_CODE,
      WA_W4WHT_EMP_TAX_EXMPT_CERT_CODE TYPE W4WHT_EMP_TAX_EXMPT_CERT_CODE,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <W4WHT_EMP_TAX_EXMPT_CERT_CODE> TYPE W4WHT_EMP_TAX_EXMPT_CERT_CODE.

*Process all fields in table header/work area as string values, full declaration of the W4WHT_EMP_TAX_EXMPT_CERT_CODE 
*table where each field has a char/string type for you to simply copy and paste. This allows 
*you to use processing that is only available to these field types such as the CONCATENATE statement.
  PERFORM process_as_string_field_values CHANGING wa_W4WHT_EMP_TAX_EXMPT_CERT_CODE.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM W4WHT_EMP_TAX_EXMPT_CERT_CODE
  INTO TABLE IT_W4WHT_EMP_TAX_EXMPT_CERT_CODE.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM W4WHT_EMP_TAX_EXMPT_CERT_CODE
*  INTO TABLE @DATA(IT_W4WHT_EMP_TAX_EXMPT_CERT_CODE2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_W4WHT_EMP_TAX_EXMPT_CERT_CODE INDEX 1 INTO DATA(WA_W4WHT_EMP_TAX_EXMPT_CERT_CODE2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_W4WHT_EMP_TAX_EXMPT_CERT_CODE ASSIGNING <W4WHT_EMP_TAX_EXMPT_CERT_CODE>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<W4WHT_EMP_TAX_EXMPT_CERT_CODE>-CONTROLLER = 1.
<W4WHT_EMP_TAX_EXMPT_CERT_CODE>-COUNTRY_CODE = 1.
<W4WHT_EMP_TAX_EXMPT_CERT_CODE>-REGION_CODE = 1.
<W4WHT_EMP_TAX_EXMPT_CERT_CODE>-CONTROLLER = 1.
<W4WHT_EMP_TAX_EXMPT_CERT_CODE>-LIST_ID = 1.
ENDLOOP.

LOOP AT IT_W4WHT_EMP_TAX_EXMPT_CERT_CODE INTO WA_W4WHT_EMP_TAX_EXMPT_CERT_CODE.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_W4WHT_EMP_TAX_EXMPT_CERT_CODE-LIST_VERSION_ID, sy-vline,
WA_W4WHT_EMP_TAX_EXMPT_CERT_CODE-LIST_AGENCY_ID, sy-vline,
WA_W4WHT_EMP_TAX_EXMPT_CERT_CODE-LIST_AGENCY_SCHEME_ID, sy-vline,
WA_W4WHT_EMP_TAX_EXMPT_CERT_CODE-LIST_AGENCY_SCHEME_AGENCY_ID, sy-vline,
WA_W4WHT_EMP_TAX_EXMPT_CERT_CODE-CONTENT, sy-vline,
WA_W4WHT_EMP_TAX_EXMPT_CERT_CODE-TAX_AUTHORITY_ID, sy-vline.
ENDLOOP. *Add any further fields from structure WA_W4WHT_EMP_TAX_EXMPT_CERT_CODE you want to display... WRITE:/ sy-uline. * Aternatively use generic code to Write field values (and NAME) to screen report DO. ASSIGN COMPONENT sy-index OF STRUCTURE wa_W4WHT_EMP_TAX_EXMPT_CERT_CODE TO <field>. IF sy-subrc <> 0. EXIT. ENDIF. WRITE:/ 'Field Value', <field>, sy-vline. gd_str = <field> . lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ). lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ). WRITE:/ 'Field Name', lv_fieldname. ENDDO. *Redo loop but convert all fields from internal to out value LOOP AT IT_W4WHT_EMP_TAX_EXMPT_CERT_CODE INTO WA_W4WHT_EMP_TAX_EXMPT_CERT_CODE. *Write horizonal line to screen report. WRITE:/ sy-uline. *Sometimes data within SAP is stored within the database table in a different format to *what it is displayed to the user. These input/output conversation FM routines are what *translates the data between the two formats. This form converts all fields to display/output *versions using conversion routines PERFORM convert_all_field_values CHANGING wa_EKKO. ENDLOOP. *&---------------------------------------------------------------------* *& Form convert_all_field_values *&---------------------------------------------------------------------* FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO. DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.
ENDFORM. *&---------------------------------------------------------------------* *& Form process_as_string_field_values *&---------------------------------------------------------------------* FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO. TYPES: BEGIN OF T_W4WHT_EMP_TAX_EXMPT_CERT_CODE_STR,
CONTROLLER TYPE STRING,
COUNTRY_CODE TYPE STRING,
REGION_CODE TYPE STRING,
CONTROLLER TYPE STRING,
LIST_ID TYPE STRING,
LIST_VERSION_ID TYPE STRING,
LIST_AGENCY_ID TYPE STRING,
LIST_AGENCY_SCHEME_ID TYPE STRING,
LIST_AGENCY_SCHEME_AGENCY_ID TYPE STRING,
CONTENT TYPE STRING,
TAX_AUTHORITY_ID TYPE STRING,END OF T_EKKO_STR. DATA: WA_W4WHT_EMP_TAX_EXMPT_CERT_CODE_STR type T_EKKO_STR. DATA: ld_text TYPE string. LOOP AT IT_EKKO INTO WA_EKKO. MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR. CONCATENATE: sy-vline
WA_W4WHT_EMP_TAX_EXMPT_CERT_CODE_STR-CONTROLLER sy-vline
WA_W4WHT_EMP_TAX_EXMPT_CERT_CODE_STR-COUNTRY_CODE sy-vline
WA_W4WHT_EMP_TAX_EXMPT_CERT_CODE_STR-REGION_CODE sy-vline
WA_W4WHT_EMP_TAX_EXMPT_CERT_CODE_STR-CONTROLLER sy-vline
WA_W4WHT_EMP_TAX_EXMPT_CERT_CODE_STR-LIST_ID sy-vline
WA_W4WHT_EMP_TAX_EXMPT_CERT_CODE_STR-LIST_VERSION_ID sy-vline
WA_W4WHT_EMP_TAX_EXMPT_CERT_CODE_STR-LIST_AGENCY_ID sy-vline
WA_W4WHT_EMP_TAX_EXMPT_CERT_CODE_STR-LIST_AGENCY_SCHEME_ID sy-vline
WA_W4WHT_EMP_TAX_EXMPT_CERT_CODE_STR-LIST_AGENCY_SCHEME_AGENCY_ID sy-vline
WA_W4WHT_EMP_TAX_EXMPT_CERT_CODE_STR-CONTENT sy-vline
WA_W4WHT_EMP_TAX_EXMPT_CERT_CODE_STR-TAX_AUTHORITY_ID sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.