ABAP Select data from SAP table EWAALYCOBB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EWAALYCOBB
*  INTO TABLE @DATA(IT_EWAALYCOBB2).
*--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_EWAALYCOBB INDEX 1 INTO DATA(WA_EWAALYCOBB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EWAALYCOBB>-MANDT = 1.
<EWAALYCOBB>-PARTNERNUMBER = 1.
<EWAALYCOBB>-ORDERCOUNT = 1.
<EWAALYCOBB>-ORDERNUMBER = 1.
<EWAALYCOBB>-ORDERITEM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EWAALYCOBB-CONTAINER, sy-vline,
  WA_EWAALYCOBB-CONTAINERTYPE, sy-vline,
  WA_EWAALYCOBB-ORDERDATE, sy-vline,
  WA_EWAALYCOBB-WASTE, sy-vline,
  WA_EWAALYCOBB-SERVICETYPE, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_EWAALYCOBB 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_EWAALYCOBB 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_EWAALYCOBB INTO WA_EWAALYCOBB.


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

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

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

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

*Conversion exit MATN1, internal->external for field WASTE
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_EWAALYCOBB-WASTE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWAALYCOBB-WASTE.
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_EWAALYCOBB_STR, 
MANDT TYPE STRING,
PARTNERNUMBER TYPE STRING,
ORDERCOUNT TYPE STRING,
ORDERNUMBER TYPE STRING,
ORDERITEM TYPE STRING,
CONTAINER TYPE STRING,
CONTAINERTYPE TYPE STRING,
ORDERDATE TYPE STRING,
WASTE TYPE STRING,
SERVICETYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EWAALYCOBB_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_EWAALYCOBB_STR-MANDT sy-vline 
WA_EWAALYCOBB_STR-PARTNERNUMBER sy-vline 
WA_EWAALYCOBB_STR-ORDERCOUNT sy-vline 
WA_EWAALYCOBB_STR-ORDERNUMBER sy-vline 
WA_EWAALYCOBB_STR-ORDERITEM sy-vline 
WA_EWAALYCOBB_STR-CONTAINER sy-vline 
WA_EWAALYCOBB_STR-CONTAINERTYPE sy-vline 
WA_EWAALYCOBB_STR-ORDERDATE sy-vline 
WA_EWAALYCOBB_STR-WASTE sy-vline 
WA_EWAALYCOBB_STR-SERVICETYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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