ABAP Select data from SAP table ECAMIOPRMR_D into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ECAMIOPRMR_D
*  INTO TABLE @DATA(IT_ECAMIOPRMR_D2).
*--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_ECAMIOPRMR_D INDEX 1 INTO DATA(WA_ECAMIOPRMR_D2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ECAMIOPRMR_D>-EQUNR = 1.
<ECAMIOPRMR_D>-ZWNUMMER = 1.
<ECAMIOPRMR_D>-GERNR = 1.
<ECAMIOPRMR_D>-ZWSTAND = 1.
<ECAMIOPRMR_D>-ABLHINW = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ECAMIOPRMR_D-ISTABLART, sy-vline,
  WA_ECAMIOPRMR_D-ABLESER, sy-vline,
  WA_ECAMIOPRMR_D-PERVERBRD, sy-vline,
  WA_ECAMIOPRMR_D-ANZDAYSOFPERIOD, sy-vline,
  WA_ECAMIOPRMR_D-MASSBTECH, sy-vline,
  WA_ECAMIOPRMR_D-ISTABART_TXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ECAMIOPRMR_D 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_ECAMIOPRMR_D 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_ECAMIOPRMR_D INTO WA_ECAMIOPRMR_D.


*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_ECAMIOPRMR_D-EQUNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ECAMIOPRMR_D-EQUNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit LUNIT, internal->external for field MASSBTECH
CALL FUNCTION 'CONVERSION_EXIT_LUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ECAMIOPRMR_D-MASSBTECH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ECAMIOPRMR_D-MASSBTECH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit HH_MM, internal->external for field PRMR_ATIM
CALL FUNCTION 'CONVERSION_EXIT_HH_MM_OUTPUT'
  EXPORTING
    input =                      WA_ECAMIOPRMR_D-PRMR_ATIM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ECAMIOPRMR_D-PRMR_ATIM.
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_ECAMIOPRMR_D_STR, 
EQUNR TYPE STRING,
ZWNUMMER TYPE STRING,
GERNR TYPE STRING,
ZWSTAND TYPE STRING,
ABLHINW TYPE STRING,
ISTABLART TYPE STRING,
ABLESER TYPE STRING,
PERVERBRD TYPE STRING,
ANZDAYSOFPERIOD TYPE STRING,
MASSBTECH TYPE STRING,
ISTABART_TXT TYPE STRING,
ABLESER_NAME TYPE STRING,
ZWART TYPE STRING,
ZWTYP TYPE STRING,
ABLSTAT TYPE STRING,
PRMR_ZWST TYPE STRING,
PRMR_ADAT TYPE STRING,
PRMR_ATIM TYPE STRING,
CHANGE TYPE STRING,
CHECK_ERROR TYPE STRING,
ERROR_FIELD TYPE STRING,
CONSMPT TYPE STRING,
QNT_STATUS TYPE STRING,
QDSTAT TYPE STRING,
QDPROC TYPE STRING,
QD_TRIGGER_REASON TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ECAMIOPRMR_D_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_ECAMIOPRMR_D_STR-EQUNR sy-vline 
WA_ECAMIOPRMR_D_STR-ZWNUMMER sy-vline 
WA_ECAMIOPRMR_D_STR-GERNR sy-vline 
WA_ECAMIOPRMR_D_STR-ZWSTAND sy-vline 
WA_ECAMIOPRMR_D_STR-ABLHINW sy-vline 
WA_ECAMIOPRMR_D_STR-ISTABLART sy-vline 
WA_ECAMIOPRMR_D_STR-ABLESER sy-vline 
WA_ECAMIOPRMR_D_STR-PERVERBRD sy-vline 
WA_ECAMIOPRMR_D_STR-ANZDAYSOFPERIOD sy-vline 
WA_ECAMIOPRMR_D_STR-MASSBTECH sy-vline 
WA_ECAMIOPRMR_D_STR-ISTABART_TXT sy-vline 
WA_ECAMIOPRMR_D_STR-ABLESER_NAME sy-vline 
WA_ECAMIOPRMR_D_STR-ZWART sy-vline 
WA_ECAMIOPRMR_D_STR-ZWTYP sy-vline 
WA_ECAMIOPRMR_D_STR-ABLSTAT sy-vline 
WA_ECAMIOPRMR_D_STR-PRMR_ZWST sy-vline 
WA_ECAMIOPRMR_D_STR-PRMR_ADAT sy-vline 
WA_ECAMIOPRMR_D_STR-PRMR_ATIM sy-vline 
WA_ECAMIOPRMR_D_STR-CHANGE sy-vline 
WA_ECAMIOPRMR_D_STR-CHECK_ERROR sy-vline 
WA_ECAMIOPRMR_D_STR-ERROR_FIELD sy-vline 
WA_ECAMIOPRMR_D_STR-CONSMPT sy-vline 
WA_ECAMIOPRMR_D_STR-QNT_STATUS sy-vline 
WA_ECAMIOPRMR_D_STR-QDSTAT sy-vline 
WA_ECAMIOPRMR_D_STR-QDPROC sy-vline 
WA_ECAMIOPRMR_D_STR-QD_TRIGGER_REASON sy-vline      INTO ld_text SEPARATED BY SPACE.

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