ABAP Select data from SAP table EWAALYCCOC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EWAALYCCOC
*  INTO TABLE @DATA(IT_EWAALYCCOC2).
*--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_EWAALYCCOC INDEX 1 INTO DATA(WA_EWAALYCCOC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EWAALYCCOC>-MANDT = 1.
<EWAALYCCOC>-ORDERNUMBER = 1.
<EWAALYCCOC>-ORDERPOSITIONNUMBER = 1.
<EWAALYCCOC>-CONTAINER = 1.
<EWAALYCCOC>-CONTAINERTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EWAALYCCOC-ORDERDATE, sy-vline,
  WA_EWAALYCCOC-WASTETYPE, sy-vline,
  WA_EWAALYCCOC-SERVICETYPE, sy-vline,
  WA_EWAALYCCOC-PARTNERNUMBER, sy-vline,
  WA_EWAALYCCOC-BUSINESSPARTNER, sy-vline,
  WA_EWAALYCCOC-ORDERCOUNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EWAALYCCOC 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_EWAALYCCOC 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_EWAALYCCOC INTO WA_EWAALYCCOC.


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

*Conversion exit GERNR, internal->external for field CONTAINER
CALL FUNCTION 'CONVERSION_EXIT_GERNR_OUTPUT'
  EXPORTING
    input =                      WA_EWAALYCCOC-CONTAINER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWAALYCCOC-CONTAINER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field CONTAINERTYPE
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_EWAALYCCOC-CONTAINERTYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWAALYCCOC-CONTAINERTYPE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field WASTETYPE
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_EWAALYCCOC-WASTETYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWAALYCCOC-WASTETYPE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PARTNERNUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EWAALYCCOC-PARTNERNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWAALYCCOC-PARTNERNUMBER.
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_EWAALYCCOC_STR, 
MANDT TYPE STRING,
ORDERNUMBER TYPE STRING,
ORDERPOSITIONNUMBER TYPE STRING,
CONTAINER TYPE STRING,
CONTAINERTYPE TYPE STRING,
ORDERDATE TYPE STRING,
WASTETYPE TYPE STRING,
SERVICETYPE TYPE STRING,
PARTNERNUMBER TYPE STRING,
BUSINESSPARTNER TYPE STRING,
ORDERCOUNT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EWAALYCCOC_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_EWAALYCCOC_STR-MANDT sy-vline 
WA_EWAALYCCOC_STR-ORDERNUMBER sy-vline 
WA_EWAALYCCOC_STR-ORDERPOSITIONNUMBER sy-vline 
WA_EWAALYCCOC_STR-CONTAINER sy-vline 
WA_EWAALYCCOC_STR-CONTAINERTYPE sy-vline 
WA_EWAALYCCOC_STR-ORDERDATE sy-vline 
WA_EWAALYCCOC_STR-WASTETYPE sy-vline 
WA_EWAALYCCOC_STR-SERVICETYPE sy-vline 
WA_EWAALYCCOC_STR-PARTNERNUMBER sy-vline 
WA_EWAALYCCOC_STR-BUSINESSPARTNER sy-vline 
WA_EWAALYCCOC_STR-ORDERCOUNT sy-vline      INTO ld_text SEPARATED BY SPACE.

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