ABAP Select data from SAP table KAEP_COAL into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KAEP_COAL
*  INTO TABLE @DATA(IT_KAEP_COAL2).
*--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_KAEP_COAL INDEX 1 INTO DATA(WA_KAEP_COAL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KAEP_COAL>-OBJID = 1.
<KAEP_COAL>-OBJ_TXT = 1.
<KAEP_COAL>-OBART = 1.
<KAEP_COAL>-OBJART_TXT = 1.
<KAEP_COAL>-KOSTL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KAEP_COAL-AUFNR, sy-vline,
  WA_KAEP_COAL-VORNR_AUF, sy-vline,
  WA_KAEP_COAL-POSID, sy-vline,
  WA_KAEP_COAL-PSPID, sy-vline,
  WA_KAEP_COAL-LSTAR, sy-vline,
  WA_KAEP_COAL-PRZNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KAEP_COAL 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_KAEP_COAL 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_KAEP_COAL INTO WA_KAEP_COAL.


*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 OBART, internal->external for field OBART
CALL FUNCTION 'CONVERSION_EXIT_OBART_OUTPUT'
  EXPORTING
    input =                      WA_KAEP_COAL-OBART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KAEP_COAL-OBART.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit NUMCV, internal->external for field VORNR_AUF
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_KAEP_COAL-VORNR_AUF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KAEP_COAL-VORNR_AUF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field POSID
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_KAEP_COAL-POSID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KAEP_COAL-POSID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field PSPID
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_KAEP_COAL-PSPID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KAEP_COAL-PSPID.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_KAEP_COAL-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KAEP_COAL-GJAHR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit BEKNZ, internal->external for field BEKNZ
CALL FUNCTION 'CONVERSION_EXIT_BEKNZ_OUTPUT'
  EXPORTING
    input =                      WA_KAEP_COAL-BEKNZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KAEP_COAL-BEKNZ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_KAEP_COAL-MEINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KAEP_COAL-MEINH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINB
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_KAEP_COAL-MEINB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KAEP_COAL-MEINB.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WTGBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_KAEP_COAL-WTGBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KAEP_COAL-WTGBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WOGBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_KAEP_COAL-WOGBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KAEP_COAL-WOGBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKGBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_KAEP_COAL-WKGBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KAEP_COAL-WKGBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKFBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_KAEP_COAL-WKFBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KAEP_COAL-WKFBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WTGSUM
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_KAEP_COAL-WTGSUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KAEP_COAL-WTGSUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKGSUM
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_KAEP_COAL-WKGSUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KAEP_COAL-WKGSUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKFSUM
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_KAEP_COAL-WKFSUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KAEP_COAL-WKFSUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WOGSUM
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_KAEP_COAL-WOGSUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KAEP_COAL-WOGSUM.
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_KAEP_COAL_STR, 
OBJID TYPE STRING,
OBJ_TXT TYPE STRING,
OBART TYPE STRING,
OBJART_TXT TYPE STRING,
KOSTL TYPE STRING,
AUFNR TYPE STRING,
VORNR_AUF TYPE STRING,
POSID TYPE STRING,
PSPID TYPE STRING,
LSTAR TYPE STRING,
PRZNR TYPE STRING,
KSTRG TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
EEW_AUFK_PS_DUMMY TYPE STRING,
KSTAR TYPE STRING,
CEL_KTXT TYPE STRING,
CEL_LTXT TYPE STRING,
OBJNR TYPE STRING,
GJAHR TYPE STRING,
VERSN TYPE STRING,
VRGNG TYPE STRING,
WRTTP TYPE STRING,
BEKNZ TYPE STRING,
KWAER TYPE STRING,
TWAER TYPE STRING,
OWAER TYPE STRING,
MEINH TYPE STRING,
MEINB TYPE STRING,
WTGBTR TYPE STRING,
WOGBTR TYPE STRING,
WKGBTR TYPE STRING,
WKFBTR TYPE STRING,
MEGBTR TYPE STRING,
MEFBTR TYPE STRING,
MBGBTR TYPE STRING,
MBFBTR TYPE STRING,
WTGSUM TYPE STRING,
WKGSUM TYPE STRING,
WKFSUM TYPE STRING,
WOGSUM TYPE STRING,
MBGSUM TYPE STRING,
MBFSUM TYPE STRING,
MEGSUM TYPE STRING,
MEFSUM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KAEP_COAL_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_KAEP_COAL_STR-OBJID sy-vline 
WA_KAEP_COAL_STR-OBJ_TXT sy-vline 
WA_KAEP_COAL_STR-OBART sy-vline 
WA_KAEP_COAL_STR-OBJART_TXT sy-vline 
WA_KAEP_COAL_STR-KOSTL sy-vline 
WA_KAEP_COAL_STR-AUFNR sy-vline 
WA_KAEP_COAL_STR-VORNR_AUF sy-vline 
WA_KAEP_COAL_STR-POSID sy-vline 
WA_KAEP_COAL_STR-PSPID sy-vline 
WA_KAEP_COAL_STR-LSTAR sy-vline 
WA_KAEP_COAL_STR-PRZNR sy-vline 
WA_KAEP_COAL_STR-KSTRG sy-vline 
WA_KAEP_COAL_STR-VBELN sy-vline 
WA_KAEP_COAL_STR-POSNR sy-vline 
WA_KAEP_COAL_STR-EEW_AUFK_PS_DUMMY sy-vline 
WA_KAEP_COAL_STR-KSTAR sy-vline 
WA_KAEP_COAL_STR-CEL_KTXT sy-vline 
WA_KAEP_COAL_STR-CEL_LTXT sy-vline 
WA_KAEP_COAL_STR-OBJNR sy-vline 
WA_KAEP_COAL_STR-GJAHR sy-vline 
WA_KAEP_COAL_STR-VERSN sy-vline 
WA_KAEP_COAL_STR-VRGNG sy-vline 
WA_KAEP_COAL_STR-WRTTP sy-vline 
WA_KAEP_COAL_STR-BEKNZ sy-vline 
WA_KAEP_COAL_STR-KWAER sy-vline 
WA_KAEP_COAL_STR-TWAER sy-vline 
WA_KAEP_COAL_STR-OWAER sy-vline 
WA_KAEP_COAL_STR-MEINH sy-vline 
WA_KAEP_COAL_STR-MEINB sy-vline 
WA_KAEP_COAL_STR-WTGBTR sy-vline 
WA_KAEP_COAL_STR-WOGBTR sy-vline 
WA_KAEP_COAL_STR-WKGBTR sy-vline 
WA_KAEP_COAL_STR-WKFBTR sy-vline 
WA_KAEP_COAL_STR-MEGBTR sy-vline 
WA_KAEP_COAL_STR-MEFBTR sy-vline 
WA_KAEP_COAL_STR-MBGBTR sy-vline 
WA_KAEP_COAL_STR-MBFBTR sy-vline 
WA_KAEP_COAL_STR-WTGSUM sy-vline 
WA_KAEP_COAL_STR-WKGSUM sy-vline 
WA_KAEP_COAL_STR-WKFSUM sy-vline 
WA_KAEP_COAL_STR-WOGSUM sy-vline 
WA_KAEP_COAL_STR-MBGSUM sy-vline 
WA_KAEP_COAL_STR-MBFSUM sy-vline 
WA_KAEP_COAL_STR-MEGSUM sy-vline 
WA_KAEP_COAL_STR-MEFSUM sy-vline      INTO ld_text SEPARATED BY SPACE.

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