ABAP Select data from SAP table AM61X into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP AM61X 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 AM61X. 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 AM61X 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_AM61X TYPE STANDARD TABLE OF AM61X,
      WA_AM61X TYPE AM61X,
      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: <AM61X> TYPE AM61X.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_AM61X.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM AM61X
  INTO TABLE IT_AM61X.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM AM61X
*  INTO TABLE @DATA(IT_AM61X2).
*--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_AM61X INDEX 1 INTO DATA(WA_AM61X2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_AM61X ASSIGNING <AM61X>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<AM61X>-MAFID = 1.
<AM61X>-DISST = 1.
<AM61X>-MATNR = 1.
<AM61X>-WERKS = 1.
<AM61X>-XCODE = 1.

ENDLOOP.

LOOP AT IT_AM61X INTO WA_AM61X.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_AM61X-RCODE, sy-vline,
  WA_AM61X-NEWHP, sy-vline,
  WA_AM61X-FLG01, sy-vline,
  WA_AM61X-FLG02, sy-vline,
  WA_AM61X-GKDAY, sy-vline,
  WA_AM61X-SGDAY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_AM61X 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_AM61X 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_AM61X INTO WA_AM61X.


*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_AM61X-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AM61X-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field QUNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AM61X-QUNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AM61X-QUNUM.
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_AM61X_STR, 
MAFID TYPE STRING,
DISST TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
XCODE TYPE STRING,
RCODE TYPE STRING,
NEWHP TYPE STRING,
FLG01 TYPE STRING,
FLG02 TYPE STRING,
GKDAY TYPE STRING,
SGDAY TYPE STRING,
FKDAY TYPE STRING,
SFDAY TYPE STRING,
FKDIF TYPE STRING,
FWEEK TYPE STRING,
SWEEK TYPE STRING,
MNG01 TYPE STRING,
MNG02 TYPE STRING,
MNG03 TYPE STRING,
FLP01 TYPE STRING,
FLP02 TYPE STRING,
REF01 TYPE STRING,
REF02 TYPE STRING,
ALINE TYPE STRING,
VLINE TYPE STRING,
BLINE TYPE STRING,
MLINE TYPE STRING,
LOOPS TYPE STRING,
TBNAM TYPE STRING,
DNAME TYPE STRING,
ANZLM TYPE STRING,
RTIME TYPE STRING,
MDKEY TYPE STRING,
AKDST TYPE STRING,
PLAAB TYPE STRING,
PLANR TYPE STRING,
DELKZ TYPE STRING,
VSTAT TYPE STRING,
DY270 TYPE STRING,
AENAL TYPE STRING,
ICPRO TYPE STRING,
ICDYN TYPE STRING,
GSMNG TYPE STRING,
AVMNG TYPE STRING,
QUOTE TYPE STRING,
QUNUM TYPE STRING,
QUPOS TYPE STRING,
WRT05 TYPE STRING,
PROFL TYPE STRING,
STYPE TYPE STRING,
LGORT TYPE STRING,
VRTYP TYPE STRING,
VERID TYPE STRING,
BERID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_AM61X_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_AM61X_STR-MAFID sy-vline 
WA_AM61X_STR-DISST sy-vline 
WA_AM61X_STR-MATNR sy-vline 
WA_AM61X_STR-WERKS sy-vline 
WA_AM61X_STR-XCODE sy-vline 
WA_AM61X_STR-RCODE sy-vline 
WA_AM61X_STR-NEWHP sy-vline 
WA_AM61X_STR-FLG01 sy-vline 
WA_AM61X_STR-FLG02 sy-vline 
WA_AM61X_STR-GKDAY sy-vline 
WA_AM61X_STR-SGDAY sy-vline 
WA_AM61X_STR-FKDAY sy-vline 
WA_AM61X_STR-SFDAY sy-vline 
WA_AM61X_STR-FKDIF sy-vline 
WA_AM61X_STR-FWEEK sy-vline 
WA_AM61X_STR-SWEEK sy-vline 
WA_AM61X_STR-MNG01 sy-vline 
WA_AM61X_STR-MNG02 sy-vline 
WA_AM61X_STR-MNG03 sy-vline 
WA_AM61X_STR-FLP01 sy-vline 
WA_AM61X_STR-FLP02 sy-vline 
WA_AM61X_STR-REF01 sy-vline 
WA_AM61X_STR-REF02 sy-vline 
WA_AM61X_STR-ALINE sy-vline 
WA_AM61X_STR-VLINE sy-vline 
WA_AM61X_STR-BLINE sy-vline 
WA_AM61X_STR-MLINE sy-vline 
WA_AM61X_STR-LOOPS sy-vline 
WA_AM61X_STR-TBNAM sy-vline 
WA_AM61X_STR-DNAME sy-vline 
WA_AM61X_STR-ANZLM sy-vline 
WA_AM61X_STR-RTIME sy-vline 
WA_AM61X_STR-MDKEY sy-vline 
WA_AM61X_STR-AKDST sy-vline 
WA_AM61X_STR-PLAAB sy-vline 
WA_AM61X_STR-PLANR sy-vline 
WA_AM61X_STR-DELKZ sy-vline 
WA_AM61X_STR-VSTAT sy-vline 
WA_AM61X_STR-DY270 sy-vline 
WA_AM61X_STR-AENAL sy-vline 
WA_AM61X_STR-ICPRO sy-vline 
WA_AM61X_STR-ICDYN sy-vline 
WA_AM61X_STR-GSMNG sy-vline 
WA_AM61X_STR-AVMNG sy-vline 
WA_AM61X_STR-QUOTE sy-vline 
WA_AM61X_STR-QUNUM sy-vline 
WA_AM61X_STR-QUPOS sy-vline 
WA_AM61X_STR-WRT05 sy-vline 
WA_AM61X_STR-PROFL sy-vline 
WA_AM61X_STR-STYPE sy-vline 
WA_AM61X_STR-LGORT sy-vline 
WA_AM61X_STR-VRTYP sy-vline 
WA_AM61X_STR-VERID sy-vline 
WA_AM61X_STR-BERID sy-vline      INTO ld_text SEPARATED BY SPACE.

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