ABAP Select data from SAP table ENT1034 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ENT1034 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 ENT1034. 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 ENT1034 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_ENT1034 TYPE STANDARD TABLE OF ENT1034,
      WA_ENT1034 TYPE ENT1034,
      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: <ENT1034> TYPE ENT1034.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ENT1034.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ENT1034
  INTO TABLE IT_ENT1034.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ENT1034
*  INTO TABLE @DATA(IT_ENT10342).
*--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_ENT1034 INDEX 1 INTO DATA(WA_ENT10342).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ENT1034 ASSIGNING <ENT1034>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ENT1034>-MANDT = 1.
<ENT1034>-MATNR = 1.
<ENT1034>-MTART = 1.
<ENT1034>-MBRSH = 1.
<ENT1034>-MATKL = 1.

ENDLOOP.

LOOP AT IT_ENT1034 INTO WA_ENT1034.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ENT1034-MEINS, sy-vline,
  WA_ENT1034-LVORM, sy-vline,
  WA_ENT1034-LAEDA, sy-vline,
  WA_ENT1034-AENAM, sy-vline,
  WA_ENT1034-ERSDA, sy-vline,
  WA_ENT1034-ERNAM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ENT1034 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_ENT1034 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_ENT1034 INTO WA_ENT1034.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ENT1034-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT1034-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ENT1034-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT1034-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_ENT1034-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT1034-SPRAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEABM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ENT1034-MEABM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT1034-MEABM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field GEWEI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ENT1034-GEWEI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT1034-GEWEI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VOLEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ENT1034-VOLEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT1034-VOLEH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ENT1034-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT1034-KUNNR.
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_ENT1034_STR, 
MANDT TYPE STRING,
MATNR TYPE STRING,
MTART TYPE STRING,
MBRSH TYPE STRING,
MATKL TYPE STRING,
MEINS TYPE STRING,
LVORM TYPE STRING,
LAEDA TYPE STRING,
AENAM TYPE STRING,
ERSDA TYPE STRING,
ERNAM TYPE STRING,
VPSTA TYPE STRING,
PSTAT TYPE STRING,
SPRAS TYPE STRING,
MAKTX TYPE STRING,
BREIT TYPE STRING,
HOEHE TYPE STRING,
LAENG TYPE STRING,
MEABM TYPE STRING,
BRGEW TYPE STRING,
GEWEI TYPE STRING,
VOLUM TYPE STRING,
VOLEH TYPE STRING,
AESZN TYPE STRING,
BISMT TYPE STRING,
BLANZ TYPE STRING,
BLATT TYPE STRING,
CADKZ TYPE STRING,
FERTH TYPE STRING,
FORMT TYPE STRING,
GROES TYPE STRING,
KUNNR TYPE STRING,
LABOR TYPE STRING,
NORMT TYPE STRING,
NTGEW TYPE STRING,
PRDHA TYPE STRING,
SPART TYPE STRING,
WRKST TYPE STRING,
ZEIAR TYPE STRING,
ZEIFO TYPE STRING,
ZEINR TYPE STRING,
ZEIVR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ENT1034_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_ENT1034_STR-MANDT sy-vline 
WA_ENT1034_STR-MATNR sy-vline 
WA_ENT1034_STR-MTART sy-vline 
WA_ENT1034_STR-MBRSH sy-vline 
WA_ENT1034_STR-MATKL sy-vline 
WA_ENT1034_STR-MEINS sy-vline 
WA_ENT1034_STR-LVORM sy-vline 
WA_ENT1034_STR-LAEDA sy-vline 
WA_ENT1034_STR-AENAM sy-vline 
WA_ENT1034_STR-ERSDA sy-vline 
WA_ENT1034_STR-ERNAM sy-vline 
WA_ENT1034_STR-VPSTA sy-vline 
WA_ENT1034_STR-PSTAT sy-vline 
WA_ENT1034_STR-SPRAS sy-vline 
WA_ENT1034_STR-MAKTX sy-vline 
WA_ENT1034_STR-BREIT sy-vline 
WA_ENT1034_STR-HOEHE sy-vline 
WA_ENT1034_STR-LAENG sy-vline 
WA_ENT1034_STR-MEABM sy-vline 
WA_ENT1034_STR-BRGEW sy-vline 
WA_ENT1034_STR-GEWEI sy-vline 
WA_ENT1034_STR-VOLUM sy-vline 
WA_ENT1034_STR-VOLEH sy-vline 
WA_ENT1034_STR-AESZN sy-vline 
WA_ENT1034_STR-BISMT sy-vline 
WA_ENT1034_STR-BLANZ sy-vline 
WA_ENT1034_STR-BLATT sy-vline 
WA_ENT1034_STR-CADKZ sy-vline 
WA_ENT1034_STR-FERTH sy-vline 
WA_ENT1034_STR-FORMT sy-vline 
WA_ENT1034_STR-GROES sy-vline 
WA_ENT1034_STR-KUNNR sy-vline 
WA_ENT1034_STR-LABOR sy-vline 
WA_ENT1034_STR-NORMT sy-vline 
WA_ENT1034_STR-NTGEW sy-vline 
WA_ENT1034_STR-PRDHA sy-vline 
WA_ENT1034_STR-SPART sy-vline 
WA_ENT1034_STR-WRKST sy-vline 
WA_ENT1034_STR-ZEIAR sy-vline 
WA_ENT1034_STR-ZEIFO sy-vline 
WA_ENT1034_STR-ZEINR sy-vline 
WA_ENT1034_STR-ZEIVR sy-vline      INTO ld_text SEPARATED BY SPACE.

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