ABAP Select data from SAP table REEX_POSTING_CC_COVP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REEX_POSTING_CC_COVP
*  INTO TABLE @DATA(IT_REEX_POSTING_CC_COVP2).
*--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_REEX_POSTING_CC_COVP INDEX 1 INTO DATA(WA_REEX_POSTING_CC_COVP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REEX_POSTING_CC_COVP>-OBJNR = 1.
<REEX_POSTING_CC_COVP>-KOKRS = 1.
<REEX_POSTING_CC_COVP>-BELNR = 1.
<REEX_POSTING_CC_COVP>-BUZEI = 1.
<REEX_POSTING_CC_COVP>-WTGBTR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REEX_POSTING_CC_COVP-WOGBTR, sy-vline,
  WA_REEX_POSTING_CC_COVP-WKGBTR, sy-vline,
  WA_REEX_POSTING_CC_COVP-TWAER, sy-vline,
  WA_REEX_POSTING_CC_COVP-OWAER, sy-vline,
  WA_REEX_POSTING_CC_COVP-MBGBTR, sy-vline,
  WA_REEX_POSTING_CC_COVP-MEINB, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REEX_POSTING_CC_COVP 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_REEX_POSTING_CC_COVP 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_REEX_POSTING_CC_COVP INTO WA_REEX_POSTING_CC_COVP.


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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field LOGSYSTEM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REEX_POSTING_CC_COVP-LOGSYSTEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REEX_POSTING_CC_COVP-LOGSYSTEM.
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_REEX_POSTING_CC_COVP_STR, 
OBJNR TYPE STRING,
KOKRS TYPE STRING,
BELNR TYPE STRING,
BUZEI TYPE STRING,
WTGBTR TYPE STRING,
WOGBTR TYPE STRING,
WKGBTR TYPE STRING,
TWAER TYPE STRING,
OWAER TYPE STRING,
MBGBTR TYPE STRING,
MEINB TYPE STRING,
KSTAR TYPE STRING,
BEKNZ TYPE STRING,
GKONT TYPE STRING,
GKOAR TYPE STRING,
DABRZ TYPE STRING,
BLDAT TYPE STRING,
BUDAT TYPE STRING,
STFLG TYPE STRING,
STOKZ TYPE STRING,
PAROB1 TYPE STRING,
POBART TYPE STRING,
POBID TYPE STRING,
REFBK TYPE STRING,
REFBT TYPE STRING,
REFBN TYPE STRING,
REFGJ TYPE STRING,
REFBZ_FI TYPE STRING,
BLART TYPE STRING,
BLTXT TYPE STRING,
SGTXT TYPE STRING,
USNAM TYPE STRING,
AWORG TYPE STRING,
AWTYP TYPE STRING,
AWKEY TYPE STRING,
REFBZ TYPE STRING,
LOGSYSTEM TYPE STRING,
VRGNG TYPE STRING,
ORGVG TYPE STRING,
VARNR TYPE STRING,
RO_IDENT TYPE STRING,
CN_IDENT TYPE STRING,
CEL_KTXT TYPE STRING,
GKONT_KTXT TYPE STRING,
KWAER TYPE STRING,
EXTERN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REEX_POSTING_CC_COVP_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_REEX_POSTING_CC_COVP_STR-OBJNR sy-vline 
WA_REEX_POSTING_CC_COVP_STR-KOKRS sy-vline 
WA_REEX_POSTING_CC_COVP_STR-BELNR sy-vline 
WA_REEX_POSTING_CC_COVP_STR-BUZEI sy-vline 
WA_REEX_POSTING_CC_COVP_STR-WTGBTR sy-vline 
WA_REEX_POSTING_CC_COVP_STR-WOGBTR sy-vline 
WA_REEX_POSTING_CC_COVP_STR-WKGBTR sy-vline 
WA_REEX_POSTING_CC_COVP_STR-TWAER sy-vline 
WA_REEX_POSTING_CC_COVP_STR-OWAER sy-vline 
WA_REEX_POSTING_CC_COVP_STR-MBGBTR sy-vline 
WA_REEX_POSTING_CC_COVP_STR-MEINB sy-vline 
WA_REEX_POSTING_CC_COVP_STR-KSTAR sy-vline 
WA_REEX_POSTING_CC_COVP_STR-BEKNZ sy-vline 
WA_REEX_POSTING_CC_COVP_STR-GKONT sy-vline 
WA_REEX_POSTING_CC_COVP_STR-GKOAR sy-vline 
WA_REEX_POSTING_CC_COVP_STR-DABRZ sy-vline 
WA_REEX_POSTING_CC_COVP_STR-BLDAT sy-vline 
WA_REEX_POSTING_CC_COVP_STR-BUDAT sy-vline 
WA_REEX_POSTING_CC_COVP_STR-STFLG sy-vline 
WA_REEX_POSTING_CC_COVP_STR-STOKZ sy-vline 
WA_REEX_POSTING_CC_COVP_STR-PAROB1 sy-vline 
WA_REEX_POSTING_CC_COVP_STR-POBART sy-vline 
WA_REEX_POSTING_CC_COVP_STR-POBID sy-vline 
WA_REEX_POSTING_CC_COVP_STR-REFBK sy-vline 
WA_REEX_POSTING_CC_COVP_STR-REFBT sy-vline 
WA_REEX_POSTING_CC_COVP_STR-REFBN sy-vline 
WA_REEX_POSTING_CC_COVP_STR-REFGJ sy-vline 
WA_REEX_POSTING_CC_COVP_STR-REFBZ_FI sy-vline 
WA_REEX_POSTING_CC_COVP_STR-BLART sy-vline 
WA_REEX_POSTING_CC_COVP_STR-BLTXT sy-vline 
WA_REEX_POSTING_CC_COVP_STR-SGTXT sy-vline 
WA_REEX_POSTING_CC_COVP_STR-USNAM sy-vline 
WA_REEX_POSTING_CC_COVP_STR-AWORG sy-vline 
WA_REEX_POSTING_CC_COVP_STR-AWTYP sy-vline 
WA_REEX_POSTING_CC_COVP_STR-AWKEY sy-vline 
WA_REEX_POSTING_CC_COVP_STR-REFBZ sy-vline 
WA_REEX_POSTING_CC_COVP_STR-LOGSYSTEM sy-vline 
WA_REEX_POSTING_CC_COVP_STR-VRGNG sy-vline 
WA_REEX_POSTING_CC_COVP_STR-ORGVG sy-vline 
WA_REEX_POSTING_CC_COVP_STR-VARNR sy-vline 
WA_REEX_POSTING_CC_COVP_STR-RO_IDENT sy-vline 
WA_REEX_POSTING_CC_COVP_STR-CN_IDENT sy-vline 
WA_REEX_POSTING_CC_COVP_STR-CEL_KTXT sy-vline 
WA_REEX_POSTING_CC_COVP_STR-GKONT_KTXT sy-vline 
WA_REEX_POSTING_CC_COVP_STR-KWAER sy-vline 
WA_REEX_POSTING_CC_COVP_STR-EXTERN sy-vline      INTO ld_text SEPARATED BY SPACE.

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