ABAP Select data from SAP table COBRA4 into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP COBRA4 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 COBRA4. 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 COBRA4 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_COBRA4 TYPE STANDARD TABLE OF COBRA4,
      WA_COBRA4 TYPE COBRA4,
      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: <COBRA4> TYPE COBRA4.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_COBRA4.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM COBRA4
  INTO TABLE IT_COBRA4.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM COBRA4
*  INTO TABLE @DATA(IT_COBRA42).
*--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_COBRA4 INDEX 1 INTO DATA(WA_COBRA42).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_COBRA4 ASSIGNING <COBRA4>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<COBRA4>-MANDT = 1.
<COBRA4>-OBJNR = 1.
<COBRA4>-ERNAM = 1.
<COBRA4>-ERDAT = 1.
<COBRA4>-AENAM = 1.

ENDLOOP.

LOOP AT IT_COBRA4 INTO WA_COBRA4.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_COBRA4-AEDAT, sy-vline,
  WA_COBRA4-KTEXT, sy-vline,
  WA_COBRA4-ABSCH, sy-vline,
  WA_COBRA4-KSTAR, sy-vline,
  WA_COBRA4-URSCH, sy-vline,
  WA_COBRA4-GMENG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_COBRA4 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_COBRA4 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_COBRA4 INTO WA_COBRA4.


*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 KSTAR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_COBRA4-KSTAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COBRA4-KSTAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field URSCH
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_COBRA4-URSCH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COBRA4-URSCH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field GEINH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_COBRA4-GEINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COBRA4-GEINH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field APROF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_COBRA4-APROF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COBRA4-APROF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ERSCH
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_COBRA4-ERSCH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COBRA4-ERSCH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field LETJA
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_COBRA4-LETJA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COBRA4-LETJA.
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_COBRA4_STR, 
MANDT TYPE STRING,
OBJNR TYPE STRING,
ERNAM TYPE STRING,
ERDAT TYPE STRING,
AENAM TYPE STRING,
AEDAT TYPE STRING,
KTEXT TYPE STRING,
ABSCH TYPE STRING,
KSTAR TYPE STRING,
URSCH TYPE STRING,
GMENG TYPE STRING,
GEINH TYPE STRING,
ANALG TYPE STRING,
ERSAV TYPE STRING,
APROF TYPE STRING,
ABRNR TYPE STRING,
BZDAT TYPE STRING,
ERSCH TYPE STRING,
LETJA TYPE STRING,
LETPE TYPE STRING,
HIENR TYPE STRING,
SORT TYPE STRING,
TIMESTMP TYPE STRING,
LYOPR TYPE STRING,
SRSLIST TYPE STRING,
ADDCURR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_COBRA4_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_COBRA4_STR-MANDT sy-vline 
WA_COBRA4_STR-OBJNR sy-vline 
WA_COBRA4_STR-ERNAM sy-vline 
WA_COBRA4_STR-ERDAT sy-vline 
WA_COBRA4_STR-AENAM sy-vline 
WA_COBRA4_STR-AEDAT sy-vline 
WA_COBRA4_STR-KTEXT sy-vline 
WA_COBRA4_STR-ABSCH sy-vline 
WA_COBRA4_STR-KSTAR sy-vline 
WA_COBRA4_STR-URSCH sy-vline 
WA_COBRA4_STR-GMENG sy-vline 
WA_COBRA4_STR-GEINH sy-vline 
WA_COBRA4_STR-ANALG sy-vline 
WA_COBRA4_STR-ERSAV sy-vline 
WA_COBRA4_STR-APROF sy-vline 
WA_COBRA4_STR-ABRNR sy-vline 
WA_COBRA4_STR-BZDAT sy-vline 
WA_COBRA4_STR-ERSCH sy-vline 
WA_COBRA4_STR-LETJA sy-vline 
WA_COBRA4_STR-LETPE sy-vline 
WA_COBRA4_STR-HIENR sy-vline 
WA_COBRA4_STR-SORT sy-vline 
WA_COBRA4_STR-TIMESTMP sy-vline 
WA_COBRA4_STR-LYOPR sy-vline 
WA_COBRA4_STR-SRSLIST sy-vline 
WA_COBRA4_STR-ADDCURR sy-vline      INTO ld_text SEPARATED BY SPACE.

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