ABAP Select data from SAP table ENT3051 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ENT3051 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 ENT3051. 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 ENT3051 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_ENT3051 TYPE STANDARD TABLE OF ENT3051,
      WA_ENT3051 TYPE ENT3051,
      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: <ENT3051> TYPE ENT3051.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ENT3051.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ENT3051
  INTO TABLE IT_ENT3051.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ENT3051
*  INTO TABLE @DATA(IT_ENT30512).
*--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_ENT3051 INDEX 1 INTO DATA(WA_ENT30512).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ENT3051 ASSIGNING <ENT3051>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ENT3051>-MANDT = 1.
<ENT3051>-BWAGRP = 1.
<ENT3051>-PERGRP = 1.
<ENT3051>-VZJSAL = 1.
<ENT3051>-XZUGNE = 1.

ENDLOOP.

LOOP AT IT_ENT3051 INTO WA_ENT3051.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ENT3051-XZUGDA, sy-vline,
  WA_ENT3051-XANTEI, sy-vline,
  WA_ENT3051-XACLAS, sy-vline,
  WA_ENT3051-BWATYP, sy-vline,
  WA_ENT3051-XBNAFA, sy-vline,
  WA_ENT3051-XBSAFA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ENT3051 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_ENT3051 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_ENT3051 INTO WA_ENT3051.


*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 ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_ENT3051-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT3051-SPRAS.
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_ENT3051_STR, 
MANDT TYPE STRING,
BWAGRP TYPE STRING,
PERGRP TYPE STRING,
VZJSAL TYPE STRING,
XZUGNE TYPE STRING,
XZUGDA TYPE STRING,
XANTEI TYPE STRING,
XACLAS TYPE STRING,
BWATYP TYPE STRING,
XBNAFA TYPE STRING,
XBSAFA TYPE STRING,
XBAAFA TYPE STRING,
XBMAFA TYPE STRING,
SPRAS TYPE STRING,
BWGTXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ENT3051_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_ENT3051_STR-MANDT sy-vline 
WA_ENT3051_STR-BWAGRP sy-vline 
WA_ENT3051_STR-PERGRP sy-vline 
WA_ENT3051_STR-VZJSAL sy-vline 
WA_ENT3051_STR-XZUGNE sy-vline 
WA_ENT3051_STR-XZUGDA sy-vline 
WA_ENT3051_STR-XANTEI sy-vline 
WA_ENT3051_STR-XACLAS sy-vline 
WA_ENT3051_STR-BWATYP sy-vline 
WA_ENT3051_STR-XBNAFA sy-vline 
WA_ENT3051_STR-XBSAFA sy-vline 
WA_ENT3051_STR-XBAAFA sy-vline 
WA_ENT3051_STR-XBMAFA sy-vline 
WA_ENT3051_STR-SPRAS sy-vline 
WA_ENT3051_STR-BWGTXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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