ABAP Select data from SAP table EHPMAS_SVT_MATDOC_PRODUCTION into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EHPMAS_SVT_MATDOC_PRODUCTION
*  INTO TABLE @DATA(IT_EHPMAS_SVT_MATDOC_PRODUCTION2).
*--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_EHPMAS_SVT_MATDOC_PRODUCTION INDEX 1 INTO DATA(WA_EHPMAS_SVT_MATDOC_PRODUCTION2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EHPMAS_SVT_MATDOC_PRODUCTION>-MBLNR = 1.
<EHPMAS_SVT_MATDOC_PRODUCTION>-WERKS = 1.
<EHPMAS_SVT_MATDOC_PRODUCTION>-BUKRS = 1.
<EHPMAS_SVT_MATDOC_PRODUCTION>-MEINS = 1.
<EHPMAS_SVT_MATDOC_PRODUCTION>-MENGE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EHPMAS_SVT_MATDOC_PRODUCTION-BUDAT, sy-vline,
  WA_EHPMAS_SVT_MATDOC_PRODUCTION-SHKZG, sy-vline,
  WA_EHPMAS_SVT_MATDOC_PRODUCTION-VGART, sy-vline,
  WA_EHPMAS_SVT_MATDOC_PRODUCTION-BLART, sy-vline,
  WA_EHPMAS_SVT_MATDOC_PRODUCTION-MATNR, sy-vline,
  WA_EHPMAS_SVT_MATDOC_PRODUCTION-MJAHR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EHPMAS_SVT_MATDOC_PRODUCTION 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_EHPMAS_SVT_MATDOC_PRODUCTION 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_EHPMAS_SVT_MATDOC_PRODUCTION INTO WA_EHPMAS_SVT_MATDOC_PRODUCTION.


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

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_EHPMAS_SVT_MATDOC_PRODUCTION-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHPMAS_SVT_MATDOC_PRODUCTION-MEINS.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit GJAHR, internal->external for field MJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_EHPMAS_SVT_MATDOC_PRODUCTION-MJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHPMAS_SVT_MATDOC_PRODUCTION-MJAHR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CHCMI, internal->external for field CHML_CMPLNC_RLVNCE_IND
CALL FUNCTION 'CONVERSION_EXIT_CHCMI_OUTPUT'
  EXPORTING
    input =                      WA_EHPMAS_SVT_MATDOC_PRODUCTION-CHML_CMPLNC_RLVNCE_IND
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHPMAS_SVT_MATDOC_PRODUCTION-CHML_CMPLNC_RLVNCE_IND.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EHPMAS_SVT_MATDOC_PRODUCTION-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHPMAS_SVT_MATDOC_PRODUCTION-AUFNR.
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_EHPMAS_SVT_MATDOC_PRODUCTION_STR, 
MBLNR TYPE STRING,
WERKS TYPE STRING,
BUKRS TYPE STRING,
MEINS TYPE STRING,
MENGE TYPE STRING,
BUDAT TYPE STRING,
SHKZG TYPE STRING,
VGART TYPE STRING,
BLART TYPE STRING,
MATNR TYPE STRING,
MJAHR TYPE STRING,
ZEILE TYPE STRING,
BWART TYPE STRING,
CPUDT TYPE STRING,
CPUTM TYPE STRING,
KUNNR TYPE STRING,
AUFPS TYPE STRING,
CHML_CMPLNC_RLVNCE_IND TYPE STRING,
AUFNR TYPE STRING,
RSNUM TYPE STRING,
RSPOS TYPE STRING,
RSART TYPE STRING,
ELIKZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EHPMAS_SVT_MATDOC_PRODUCTION_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_EHPMAS_SVT_MATDOC_PRODUCTION_STR-MBLNR sy-vline 
WA_EHPMAS_SVT_MATDOC_PRODUCTION_STR-WERKS sy-vline 
WA_EHPMAS_SVT_MATDOC_PRODUCTION_STR-BUKRS sy-vline 
WA_EHPMAS_SVT_MATDOC_PRODUCTION_STR-MEINS sy-vline 
WA_EHPMAS_SVT_MATDOC_PRODUCTION_STR-MENGE sy-vline 
WA_EHPMAS_SVT_MATDOC_PRODUCTION_STR-BUDAT sy-vline 
WA_EHPMAS_SVT_MATDOC_PRODUCTION_STR-SHKZG sy-vline 
WA_EHPMAS_SVT_MATDOC_PRODUCTION_STR-VGART sy-vline 
WA_EHPMAS_SVT_MATDOC_PRODUCTION_STR-BLART sy-vline 
WA_EHPMAS_SVT_MATDOC_PRODUCTION_STR-MATNR sy-vline 
WA_EHPMAS_SVT_MATDOC_PRODUCTION_STR-MJAHR sy-vline 
WA_EHPMAS_SVT_MATDOC_PRODUCTION_STR-ZEILE sy-vline 
WA_EHPMAS_SVT_MATDOC_PRODUCTION_STR-BWART sy-vline 
WA_EHPMAS_SVT_MATDOC_PRODUCTION_STR-CPUDT sy-vline 
WA_EHPMAS_SVT_MATDOC_PRODUCTION_STR-CPUTM sy-vline 
WA_EHPMAS_SVT_MATDOC_PRODUCTION_STR-KUNNR sy-vline 
WA_EHPMAS_SVT_MATDOC_PRODUCTION_STR-AUFPS sy-vline 
WA_EHPMAS_SVT_MATDOC_PRODUCTION_STR-CHML_CMPLNC_RLVNCE_IND sy-vline 
WA_EHPMAS_SVT_MATDOC_PRODUCTION_STR-AUFNR sy-vline 
WA_EHPMAS_SVT_MATDOC_PRODUCTION_STR-RSNUM sy-vline 
WA_EHPMAS_SVT_MATDOC_PRODUCTION_STR-RSPOS sy-vline 
WA_EHPMAS_SVT_MATDOC_PRODUCTION_STR-RSART sy-vline 
WA_EHPMAS_SVT_MATDOC_PRODUCTION_STR-ELIKZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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