ABAP Select data from SAP table ESH_L_HOUSE_INK2 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ESH_L_HOUSE_INK2 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 ESH_L_HOUSE_INK2. 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 ESH_L_HOUSE_INK2 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_ESH_L_HOUSE_INK2 TYPE STANDARD TABLE OF ESH_L_HOUSE_INK2,
      WA_ESH_L_HOUSE_INK2 TYPE ESH_L_HOUSE_INK2,
      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: <ESH_L_HOUSE_INK2> TYPE ESH_L_HOUSE_INK2.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ESH_L_HOUSE_INK2.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ESH_L_HOUSE_INK2
  INTO TABLE IT_ESH_L_HOUSE_INK2.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ESH_L_HOUSE_INK2
*  INTO TABLE @DATA(IT_ESH_L_HOUSE_INK22).
*--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_ESH_L_HOUSE_INK2 INDEX 1 INTO DATA(WA_ESH_L_HOUSE_INK22).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ESH_L_HOUSE_INK2 ASSIGNING <ESH_L_HOUSE_INK2>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ESH_L_HOUSE_INK2>-MANDT = 1.
<ESH_L_HOUSE_INK2>-ACC_ID = 1.
<ESH_L_HOUSE_INK2>-GUID = 1.
<ESH_L_HOUSE_INK2>-REVISION = 1.
<ESH_L_HOUSE_INK2>-HERKU = 1.

ENDLOOP.

LOOP AT IT_ESH_L_HOUSE_INK2 INTO WA_ESH_L_HOUSE_INK2.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ESH_L_HOUSE_INK2-BUKRS, sy-vline,
  WA_ESH_L_HOUSE_INK2-HBKID, sy-vline,
  WA_ESH_L_HOUSE_INK2-HKTID, sy-vline,
  WA_ESH_L_HOUSE_INK2-BANKN, sy-vline,
  WA_ESH_L_HOUSE_INK2-REFZL, sy-vline,
  WA_ESH_L_HOUSE_INK2-DTAAI, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ESH_L_HOUSE_INK2 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_ESH_L_HOUSE_INK2 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_ESH_L_HOUSE_INK2 INTO WA_ESH_L_HOUSE_INK2.


*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 HERKU
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ESH_L_HOUSE_INK2-HERKU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESH_L_HOUSE_INK2-HERKU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FDGRP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ESH_L_HOUSE_INK2-FDGRP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESH_L_HOUSE_INK2-FDGRP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field HKONT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ESH_L_HOUSE_INK2-HKONT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESH_L_HOUSE_INK2-HKONT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field WEKON
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ESH_L_HOUSE_INK2-WEKON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESH_L_HOUSE_INK2-WEKON.
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_ESH_L_HOUSE_INK2_STR, 
MANDT TYPE STRING,
ACC_ID TYPE STRING,
GUID TYPE STRING,
REVISION TYPE STRING,
HERKU TYPE STRING,
BUKRS TYPE STRING,
HBKID TYPE STRING,
HKTID TYPE STRING,
BANKN TYPE STRING,
REFZL TYPE STRING,
DTAAI TYPE STRING,
BNKN2 TYPE STRING,
FDGRP TYPE STRING,
ABWAE TYPE STRING,
HKONT TYPE STRING,
WEKON TYPE STRING,
MINDT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ESH_L_HOUSE_INK2_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_ESH_L_HOUSE_INK2_STR-MANDT sy-vline 
WA_ESH_L_HOUSE_INK2_STR-ACC_ID sy-vline 
WA_ESH_L_HOUSE_INK2_STR-GUID sy-vline 
WA_ESH_L_HOUSE_INK2_STR-REVISION sy-vline 
WA_ESH_L_HOUSE_INK2_STR-HERKU sy-vline 
WA_ESH_L_HOUSE_INK2_STR-BUKRS sy-vline 
WA_ESH_L_HOUSE_INK2_STR-HBKID sy-vline 
WA_ESH_L_HOUSE_INK2_STR-HKTID sy-vline 
WA_ESH_L_HOUSE_INK2_STR-BANKN sy-vline 
WA_ESH_L_HOUSE_INK2_STR-REFZL sy-vline 
WA_ESH_L_HOUSE_INK2_STR-DTAAI sy-vline 
WA_ESH_L_HOUSE_INK2_STR-BNKN2 sy-vline 
WA_ESH_L_HOUSE_INK2_STR-FDGRP sy-vline 
WA_ESH_L_HOUSE_INK2_STR-ABWAE sy-vline 
WA_ESH_L_HOUSE_INK2_STR-HKONT sy-vline 
WA_ESH_L_HOUSE_INK2_STR-WEKON sy-vline 
WA_ESH_L_HOUSE_INK2_STR-MINDT sy-vline      INTO ld_text SEPARATED BY SPACE.

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