ABAP Select data from SAP table KAEP_ETAT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP KAEP_ETAT 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_ETAT. 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_ETAT 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_ETAT TYPE STANDARD TABLE OF KAEP_ETAT,
      WA_KAEP_ETAT TYPE KAEP_ETAT,
      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_ETAT> TYPE KAEP_ETAT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KAEP_ETAT
*  INTO TABLE @DATA(IT_KAEP_ETAT2).
*--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_ETAT INDEX 1 INTO DATA(WA_KAEP_ETAT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KAEP_ETAT>-MANDT = 1.
<KAEP_ETAT>-KOKRS = 1.
<KAEP_ETAT>-BELNR = 1.
<KAEP_ETAT>-BUZEI = 1.
<KAEP_ETAT>-PERBL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KAEP_ETAT-WTP01, sy-vline,
  WA_KAEP_ETAT-WTP02, sy-vline,
  WA_KAEP_ETAT-WTP03, sy-vline,
  WA_KAEP_ETAT-WTP04, sy-vline,
  WA_KAEP_ETAT-WTP05, sy-vline,
  WA_KAEP_ETAT-WTP06, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KAEP_ETAT 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_ETAT 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_ETAT INTO WA_KAEP_ETAT.


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

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

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

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

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

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

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

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

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

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

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

*Conversion exit AC152, internal->external for field WLPSUM
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_KAEP_ETAT-WLPSUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KAEP_ETAT-WLPSUM.
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_ETAT_STR, 
MANDT TYPE STRING,
KOKRS TYPE STRING,
BELNR TYPE STRING,
BUZEI TYPE STRING,
PERBL TYPE STRING,
WTP01 TYPE STRING,
WTP02 TYPE STRING,
WTP03 TYPE STRING,
WTP04 TYPE STRING,
WTP05 TYPE STRING,
WTP06 TYPE STRING,
WTP07 TYPE STRING,
WTP08 TYPE STRING,
WTP09 TYPE STRING,
WTP10 TYPE STRING,
WTP11 TYPE STRING,
WTP12 TYPE STRING,
WTP13 TYPE STRING,
WTP14 TYPE STRING,
WTP15 TYPE STRING,
WTP16 TYPE STRING,
WLP01 TYPE STRING,
WLP02 TYPE STRING,
WLP03 TYPE STRING,
WLP04 TYPE STRING,
WLP05 TYPE STRING,
WLP06 TYPE STRING,
WLP07 TYPE STRING,
WLP08 TYPE STRING,
WLP09 TYPE STRING,
WLP10 TYPE STRING,
WLP11 TYPE STRING,
WLP12 TYPE STRING,
WLP13 TYPE STRING,
WLP14 TYPE STRING,
WLP15 TYPE STRING,
WLP16 TYPE STRING,
LEDNR TYPE STRING,
OBJNR TYPE STRING,
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,
POSIT TYPE STRING,
TRGKZ TYPE STRING,
WRTTP TYPE STRING,
GJAHR TYPE STRING,
GEBER TYPE STRING,
VERSN TYPE STRING,
VORGA TYPE STRING,
WAERS TYPE STRING,
TWAER TYPE STRING,
PLDAT TYPE STRING,
KURST TYPE STRING,
CPUDT TYPE STRING,
USNAM TYPE STRING,
SUMBZ TYPE STRING,
BLDAT TYPE STRING,
SGTEXT TYPE STRING,
NAMTEXT TYPE STRING,
WTPSUM TYPE STRING,
WLPSUM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KAEP_ETAT_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_ETAT_STR-MANDT sy-vline 
WA_KAEP_ETAT_STR-KOKRS sy-vline 
WA_KAEP_ETAT_STR-BELNR sy-vline 
WA_KAEP_ETAT_STR-BUZEI sy-vline 
WA_KAEP_ETAT_STR-PERBL sy-vline 
WA_KAEP_ETAT_STR-WTP01 sy-vline 
WA_KAEP_ETAT_STR-WTP02 sy-vline 
WA_KAEP_ETAT_STR-WTP03 sy-vline 
WA_KAEP_ETAT_STR-WTP04 sy-vline 
WA_KAEP_ETAT_STR-WTP05 sy-vline 
WA_KAEP_ETAT_STR-WTP06 sy-vline 
WA_KAEP_ETAT_STR-WTP07 sy-vline 
WA_KAEP_ETAT_STR-WTP08 sy-vline 
WA_KAEP_ETAT_STR-WTP09 sy-vline 
WA_KAEP_ETAT_STR-WTP10 sy-vline 
WA_KAEP_ETAT_STR-WTP11 sy-vline 
WA_KAEP_ETAT_STR-WTP12 sy-vline 
WA_KAEP_ETAT_STR-WTP13 sy-vline 
WA_KAEP_ETAT_STR-WTP14 sy-vline 
WA_KAEP_ETAT_STR-WTP15 sy-vline 
WA_KAEP_ETAT_STR-WTP16 sy-vline 
WA_KAEP_ETAT_STR-WLP01 sy-vline 
WA_KAEP_ETAT_STR-WLP02 sy-vline 
WA_KAEP_ETAT_STR-WLP03 sy-vline 
WA_KAEP_ETAT_STR-WLP04 sy-vline 
WA_KAEP_ETAT_STR-WLP05 sy-vline 
WA_KAEP_ETAT_STR-WLP06 sy-vline 
WA_KAEP_ETAT_STR-WLP07 sy-vline 
WA_KAEP_ETAT_STR-WLP08 sy-vline 
WA_KAEP_ETAT_STR-WLP09 sy-vline 
WA_KAEP_ETAT_STR-WLP10 sy-vline 
WA_KAEP_ETAT_STR-WLP11 sy-vline 
WA_KAEP_ETAT_STR-WLP12 sy-vline 
WA_KAEP_ETAT_STR-WLP13 sy-vline 
WA_KAEP_ETAT_STR-WLP14 sy-vline 
WA_KAEP_ETAT_STR-WLP15 sy-vline 
WA_KAEP_ETAT_STR-WLP16 sy-vline 
WA_KAEP_ETAT_STR-LEDNR sy-vline 
WA_KAEP_ETAT_STR-OBJNR sy-vline 
WA_KAEP_ETAT_STR-OBJID sy-vline 
WA_KAEP_ETAT_STR-OBJ_TXT sy-vline 
WA_KAEP_ETAT_STR-OBART sy-vline 
WA_KAEP_ETAT_STR-OBJART_TXT sy-vline 
WA_KAEP_ETAT_STR-KOSTL sy-vline 
WA_KAEP_ETAT_STR-AUFNR sy-vline 
WA_KAEP_ETAT_STR-VORNR_AUF sy-vline 
WA_KAEP_ETAT_STR-POSID sy-vline 
WA_KAEP_ETAT_STR-PSPID sy-vline 
WA_KAEP_ETAT_STR-LSTAR sy-vline 
WA_KAEP_ETAT_STR-PRZNR sy-vline 
WA_KAEP_ETAT_STR-KSTRG sy-vline 
WA_KAEP_ETAT_STR-VBELN sy-vline 
WA_KAEP_ETAT_STR-POSNR sy-vline 
WA_KAEP_ETAT_STR-EEW_AUFK_PS_DUMMY sy-vline 
WA_KAEP_ETAT_STR-POSIT sy-vline 
WA_KAEP_ETAT_STR-TRGKZ sy-vline 
WA_KAEP_ETAT_STR-WRTTP sy-vline 
WA_KAEP_ETAT_STR-GJAHR sy-vline 
WA_KAEP_ETAT_STR-GEBER sy-vline 
WA_KAEP_ETAT_STR-VERSN sy-vline 
WA_KAEP_ETAT_STR-VORGA sy-vline 
WA_KAEP_ETAT_STR-WAERS sy-vline 
WA_KAEP_ETAT_STR-TWAER sy-vline 
WA_KAEP_ETAT_STR-PLDAT sy-vline 
WA_KAEP_ETAT_STR-KURST sy-vline 
WA_KAEP_ETAT_STR-CPUDT sy-vline 
WA_KAEP_ETAT_STR-USNAM sy-vline 
WA_KAEP_ETAT_STR-SUMBZ sy-vline 
WA_KAEP_ETAT_STR-BLDAT sy-vline 
WA_KAEP_ETAT_STR-SGTEXT sy-vline 
WA_KAEP_ETAT_STR-NAMTEXT sy-vline 
WA_KAEP_ETAT_STR-WTPSUM sy-vline 
WA_KAEP_ETAT_STR-WLPSUM sy-vline      INTO ld_text SEPARATED BY SPACE.

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