ABAP Select data from SAP table EWAALYCSWO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EWAALYCSWO
*  INTO TABLE @DATA(IT_EWAALYCSWO2).
*--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_EWAALYCSWO INDEX 1 INTO DATA(WA_EWAALYCSWO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EWAALYCSWO>-MANDT = 1.
<EWAALYCSWO>-ORDERDATE = 1.
<EWAALYCSWO>-CREATED = 1.
<EWAALYCSWO>-PLANNED = 1.
<EWAALYCSWO>-CONFIRMED = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EWAALYCSWO-PARTNERNUMBER, sy-vline,
  WA_EWAALYCSWO-ORDERNUMBER, sy-vline,
  WA_EWAALYCSWO-ORDERITEMNUMBER, sy-vline,
  WA_EWAALYCSWO-BUISNESSPARTNERNAME, sy-vline,
  WA_EWAALYCSWO-SERVICETYPE, sy-vline,
  WA_EWAALYCSWO-SERVICETEXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EWAALYCSWO 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_EWAALYCSWO 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_EWAALYCSWO INTO WA_EWAALYCSWO.


*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_EWAALYCSWO-PARTNERNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWAALYCSWO-PARTNERNUMBER.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit MATN1, internal->external for field WASTETYPE
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_EWAALYCSWO-WASTETYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWAALYCSWO-WASTETYPE.
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_EWAALYCSWO_STR, 
MANDT TYPE STRING,
ORDERDATE TYPE STRING,
CREATED TYPE STRING,
PLANNED TYPE STRING,
CONFIRMED TYPE STRING,
PARTNERNUMBER TYPE STRING,
ORDERNUMBER TYPE STRING,
ORDERITEMNUMBER TYPE STRING,
BUISNESSPARTNERNAME TYPE STRING,
SERVICETYPE TYPE STRING,
SERVICETEXT TYPE STRING,
SDCONTRACT TYPE STRING,
CONTAINERTYPE TYPE STRING,
WASTETYPE TYPE STRING,
WASTETEXT TYPE STRING,
CREATEDPERITEM TYPE STRING,
PLANNEDPERITEM TYPE STRING,
CONFIRMEDPERITEM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EWAALYCSWO_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_EWAALYCSWO_STR-MANDT sy-vline 
WA_EWAALYCSWO_STR-ORDERDATE sy-vline 
WA_EWAALYCSWO_STR-CREATED sy-vline 
WA_EWAALYCSWO_STR-PLANNED sy-vline 
WA_EWAALYCSWO_STR-CONFIRMED sy-vline 
WA_EWAALYCSWO_STR-PARTNERNUMBER sy-vline 
WA_EWAALYCSWO_STR-ORDERNUMBER sy-vline 
WA_EWAALYCSWO_STR-ORDERITEMNUMBER sy-vline 
WA_EWAALYCSWO_STR-BUISNESSPARTNERNAME sy-vline 
WA_EWAALYCSWO_STR-SERVICETYPE sy-vline 
WA_EWAALYCSWO_STR-SERVICETEXT sy-vline 
WA_EWAALYCSWO_STR-SDCONTRACT sy-vline 
WA_EWAALYCSWO_STR-CONTAINERTYPE sy-vline 
WA_EWAALYCSWO_STR-WASTETYPE sy-vline 
WA_EWAALYCSWO_STR-WASTETEXT sy-vline 
WA_EWAALYCSWO_STR-CREATEDPERITEM sy-vline 
WA_EWAALYCSWO_STR-PLANNEDPERITEM sy-vline 
WA_EWAALYCSWO_STR-CONFIRMEDPERITEM sy-vline      INTO ld_text SEPARATED BY SPACE.

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