ABAP Select data from SAP table ENT5820 into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP ENT5820 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 ENT5820. 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 ENT5820 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_ENT5820 TYPE STANDARD TABLE OF ENT5820,
      WA_ENT5820 TYPE ENT5820,
      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: <ENT5820> TYPE ENT5820.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ENT5820.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ENT5820
  INTO TABLE IT_ENT5820.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ENT5820
*  INTO TABLE @DATA(IT_ENT58202).
*--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_ENT5820 INDEX 1 INTO DATA(WA_ENT58202).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ENT5820 ASSIGNING <ENT5820>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ENT5820>-MANDT = 1.
<ENT5820>-AUFPL = 1.
<ENT5820>-APLZL = 1.
<ENT5820>-STEUS = 1.
<ENT5820>-SORTL = 1.

ENDLOOP.

LOOP AT IT_ENT5820 INTO WA_ENT5820.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ENT5820-LIFNR, sy-vline,
  WA_ENT5820-PREIS, sy-vline,
  WA_ENT5820-PEINH, sy-vline,
  WA_ENT5820-SAKTO, sy-vline,
  WA_ENT5820-WAERS, sy-vline,
  WA_ENT5820-INFNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ENT5820 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_ENT5820 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_ENT5820 INTO WA_ENT5820.


*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 LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ENT5820-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT5820-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SAKTO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ENT5820-SAKTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT5820-SAKTO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field INFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ENT5820-INFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT5820-INFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BANFN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ENT5820-BANFN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT5820-BANFN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ENT5820-MEINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT5820-MEINH.
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_ENT5820_STR, 
MANDT TYPE STRING,
AUFPL TYPE STRING,
APLZL TYPE STRING,
STEUS TYPE STRING,
SORTL TYPE STRING,
LIFNR TYPE STRING,
PREIS TYPE STRING,
PEINH TYPE STRING,
SAKTO TYPE STRING,
WAERS TYPE STRING,
INFNR TYPE STRING,
ESOKZ TYPE STRING,
EKORG TYPE STRING,
EKGRP TYPE STRING,
MATKL TYPE STRING,
BUKRS TYPE STRING,
BANFN TYPE STRING,
BNFPO TYPE STRING,
MEINH TYPE STRING,
UMREN TYPE STRING,
UMREZ TYPE STRING,
BMSCH TYPE STRING,
PLIFZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ENT5820_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_ENT5820_STR-MANDT sy-vline 
WA_ENT5820_STR-AUFPL sy-vline 
WA_ENT5820_STR-APLZL sy-vline 
WA_ENT5820_STR-STEUS sy-vline 
WA_ENT5820_STR-SORTL sy-vline 
WA_ENT5820_STR-LIFNR sy-vline 
WA_ENT5820_STR-PREIS sy-vline 
WA_ENT5820_STR-PEINH sy-vline 
WA_ENT5820_STR-SAKTO sy-vline 
WA_ENT5820_STR-WAERS sy-vline 
WA_ENT5820_STR-INFNR sy-vline 
WA_ENT5820_STR-ESOKZ sy-vline 
WA_ENT5820_STR-EKORG sy-vline 
WA_ENT5820_STR-EKGRP sy-vline 
WA_ENT5820_STR-MATKL sy-vline 
WA_ENT5820_STR-BUKRS sy-vline 
WA_ENT5820_STR-BANFN sy-vline 
WA_ENT5820_STR-BNFPO sy-vline 
WA_ENT5820_STR-MEINH sy-vline 
WA_ENT5820_STR-UMREN sy-vline 
WA_ENT5820_STR-UMREZ sy-vline 
WA_ENT5820_STR-BMSCH sy-vline 
WA_ENT5820_STR-PLIFZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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