ABAP Select data from SAP table CRM_ISU_EEWMN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRM_ISU_EEWMN
*  INTO TABLE @DATA(IT_CRM_ISU_EEWMN2).
*--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_CRM_ISU_EEWMN INDEX 1 INTO DATA(WA_CRM_ISU_EEWMN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRM_ISU_EEWMN>-NOTIF_CODE = 1.
<CRM_ISU_EEWMN>-IWERK = 1.
<CRM_ISU_EEWMN>-OBJID = 1.
<CRM_ISU_EEWMN>-EQUNR = 1.
<CRM_ISU_EEWMN>-TPLNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRM_ISU_EEWMN-SERIALNR, sy-vline,
  WA_CRM_ISU_EEWMN-MATNR, sy-vline,
  WA_CRM_ISU_EEWMN-KUNUM, sy-vline,
  WA_CRM_ISU_EEWMN-STRMN, sy-vline,
  WA_CRM_ISU_EEWMN-STRUR, sy-vline,
  WA_CRM_ISU_EEWMN-LTRMN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRM_ISU_EEWMN 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_CRM_ISU_EEWMN 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_CRM_ISU_EEWMN INTO WA_CRM_ISU_EEWMN.


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

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

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

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

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

*Conversion exit ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_CRM_ISU_EEWMN-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRM_ISU_EEWMN-SPRAS.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit MATN1, internal->external for field MATNR_LONG
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_CRM_ISU_EEWMN-MATNR_LONG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRM_ISU_EEWMN-MATNR_LONG.
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_CRM_ISU_EEWMN_STR, 
NOTIF_CODE TYPE STRING,
IWERK TYPE STRING,
OBJID TYPE STRING,
EQUNR TYPE STRING,
TPLNR TYPE STRING,
SERIALNR TYPE STRING,
MATNR TYPE STRING,
KUNUM TYPE STRING,
STRMN TYPE STRING,
STRUR TYPE STRING,
LTRMN TYPE STRING,
LTRUR TYPE STRING,
INGRP TYPE STRING,
AUSVN TYPE STRING,
AUZTV TYPE STRING,
SPRAS TYPE STRING,
LTEXT TYPE STRING,
OBJREL TYPE STRING,
QMNUM TYPE STRING,
MATNR_LONG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRM_ISU_EEWMN_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_CRM_ISU_EEWMN_STR-NOTIF_CODE sy-vline 
WA_CRM_ISU_EEWMN_STR-IWERK sy-vline 
WA_CRM_ISU_EEWMN_STR-OBJID sy-vline 
WA_CRM_ISU_EEWMN_STR-EQUNR sy-vline 
WA_CRM_ISU_EEWMN_STR-TPLNR sy-vline 
WA_CRM_ISU_EEWMN_STR-SERIALNR sy-vline 
WA_CRM_ISU_EEWMN_STR-MATNR sy-vline 
WA_CRM_ISU_EEWMN_STR-KUNUM sy-vline 
WA_CRM_ISU_EEWMN_STR-STRMN sy-vline 
WA_CRM_ISU_EEWMN_STR-STRUR sy-vline 
WA_CRM_ISU_EEWMN_STR-LTRMN sy-vline 
WA_CRM_ISU_EEWMN_STR-LTRUR sy-vline 
WA_CRM_ISU_EEWMN_STR-INGRP sy-vline 
WA_CRM_ISU_EEWMN_STR-AUSVN sy-vline 
WA_CRM_ISU_EEWMN_STR-AUZTV sy-vline 
WA_CRM_ISU_EEWMN_STR-SPRAS sy-vline 
WA_CRM_ISU_EEWMN_STR-LTEXT sy-vline 
WA_CRM_ISU_EEWMN_STR-OBJREL sy-vline 
WA_CRM_ISU_EEWMN_STR-QMNUM sy-vline 
WA_CRM_ISU_EEWMN_STR-MATNR_LONG sy-vline      INTO ld_text SEPARATED BY SPACE.

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