ABAP Select data from SAP table /ACCGO/CAK_S_PARTNER_H into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /ACCGO/CAK_S_PARTNER_H 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 /ACCGO/CAK_S_PARTNER_H. See here for more generic Select statement tips.

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.

There is also a full declaration of the /ACCGO/CAK_S_PARTNER_H 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.

DATA: IT_/ACCGO/CAK_S_PARTNER_H TYPE STANDARD TABLE OF /ACCGO/CAK_S_PARTNER_H,
      WA_/ACCGO/CAK_S_PARTNER_H TYPE /ACCGO/CAK_S_PARTNER_H,
      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: </ACCGO/CAK_S_PARTNER_H> TYPE /ACCGO/CAK_S_PARTNER_H.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/ACCGO/CAK_S_PARTNER_H.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /ACCGO/CAK_S_PARTNER_H
  INTO TABLE IT_/ACCGO/CAK_S_PARTNER_H.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /ACCGO/CAK_S_PARTNER_H
*  INTO TABLE @DATA(IT_/ACCGO/CAK_S_PARTNER_H2).
*--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_/ACCGO/CAK_S_PARTNER_H INDEX 1 INTO DATA(WA_/ACCGO/CAK_S_PARTNER_H2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/ACCGO/CAK_S_PARTNER_H ASSIGNING </ACCGO/CAK_S_PARTNER_H>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</ACCGO/CAK_S_PARTNER_H>-CONTRACT_NUMBER = 1.
</ACCGO/CAK_S_PARTNER_H>-PARVW = 1.
</ACCGO/CAK_S_PARTNER_H>-PARTNER_EXT = 1.
</ACCGO/CAK_S_PARTNER_H>-NAME1 = 1.
</ACCGO/CAK_S_PARTNER_H>-STREET = 1.

ENDLOOP.

LOOP AT IT_/ACCGO/CAK_S_PARTNER_H INTO WA_/ACCGO/CAK_S_PARTNER_H.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/ACCGO/CAK_S_PARTNER_H-CITY1, sy-vline,
  WA_/ACCGO/CAK_S_PARTNER_H-POST_CODE1, sy-vline,
  WA_/ACCGO/CAK_S_PARTNER_H-SEQUENCENUMBER, sy-vline,
  WA_/ACCGO/CAK_S_PARTNER_H-SIDE, sy-vline,
  WA_/ACCGO/CAK_S_PARTNER_H-COUNTER_PARTY, sy-vline,
  WA_/ACCGO/CAK_S_PARTNER_H-TRANSACTING_COUNTER_PARTY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/ACCGO/CAK_S_PARTNER_H 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_/ACCGO/CAK_S_PARTNER_H 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_/ACCGO/CAK_S_PARTNER_H INTO WA_/ACCGO/CAK_S_PARTNER_H.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert 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.

*Conversion exit ALPHA, internal->external for field CONTRACT_NUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ACCGO/CAK_S_PARTNER_H-CONTRACT_NUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ACCGO/CAK_S_PARTNER_H-CONTRACT_NUMBER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PARVW, internal->external for field PARVW
CALL FUNCTION 'CONVERSION_EXIT_PARVW_OUTPUT'
  EXPORTING
    input =                      WA_/ACCGO/CAK_S_PARTNER_H-PARVW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ACCGO/CAK_S_PARTNER_H-PARVW.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ACTIVE_ADD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ACCGO/CAK_S_PARTNER_H-ACTIVE_ADD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ACCGO/CAK_S_PARTNER_H-ACTIVE_ADD.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_/ACCGO/CAK_S_PARTNER_H_STR, 
CONTRACT_NUMBER TYPE STRING,
PARVW TYPE STRING,
PARTNER_EXT TYPE STRING,
NAME1 TYPE STRING,
STREET TYPE STRING,
CITY1 TYPE STRING,
POST_CODE1 TYPE STRING,
SEQUENCENUMBER TYPE STRING,
SIDE TYPE STRING,
COUNTER_PARTY TYPE STRING,
TRANSACTING_COUNTER_PARTY TYPE STRING,
CONTRACT_TYPE TYPE STRING,
PUR_ORG TYPE STRING,
SALE_ORG TYPE STRING,
DIST_CHANNEL TYPE STRING,
DIVISION TYPE STRING,
ACTIVE_ADD TYPE STRING,
PART_FUNC_DESC TYPE STRING,
ISEDITALLOWED TYPE STRING,
ISDELETEALLOWED TYPE STRING,
SALEPURCHORG TYPE STRING,
PARTFUNCENABLED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/ACCGO/CAK_S_PARTNER_H_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_/ACCGO/CAK_S_PARTNER_H_STR-CONTRACT_NUMBER sy-vline 
WA_/ACCGO/CAK_S_PARTNER_H_STR-PARVW sy-vline 
WA_/ACCGO/CAK_S_PARTNER_H_STR-PARTNER_EXT sy-vline 
WA_/ACCGO/CAK_S_PARTNER_H_STR-NAME1 sy-vline 
WA_/ACCGO/CAK_S_PARTNER_H_STR-STREET sy-vline 
WA_/ACCGO/CAK_S_PARTNER_H_STR-CITY1 sy-vline 
WA_/ACCGO/CAK_S_PARTNER_H_STR-POST_CODE1 sy-vline 
WA_/ACCGO/CAK_S_PARTNER_H_STR-SEQUENCENUMBER sy-vline 
WA_/ACCGO/CAK_S_PARTNER_H_STR-SIDE sy-vline 
WA_/ACCGO/CAK_S_PARTNER_H_STR-COUNTER_PARTY sy-vline 
WA_/ACCGO/CAK_S_PARTNER_H_STR-TRANSACTING_COUNTER_PARTY sy-vline 
WA_/ACCGO/CAK_S_PARTNER_H_STR-CONTRACT_TYPE sy-vline 
WA_/ACCGO/CAK_S_PARTNER_H_STR-PUR_ORG sy-vline 
WA_/ACCGO/CAK_S_PARTNER_H_STR-SALE_ORG sy-vline 
WA_/ACCGO/CAK_S_PARTNER_H_STR-DIST_CHANNEL sy-vline 
WA_/ACCGO/CAK_S_PARTNER_H_STR-DIVISION sy-vline 
WA_/ACCGO/CAK_S_PARTNER_H_STR-ACTIVE_ADD sy-vline 
WA_/ACCGO/CAK_S_PARTNER_H_STR-PART_FUNC_DESC sy-vline 
WA_/ACCGO/CAK_S_PARTNER_H_STR-ISEDITALLOWED sy-vline 
WA_/ACCGO/CAK_S_PARTNER_H_STR-ISDELETEALLOWED sy-vline 
WA_/ACCGO/CAK_S_PARTNER_H_STR-SALEPURCHORG sy-vline 
WA_/ACCGO/CAK_S_PARTNER_H_STR-PARTFUNCENABLED sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.