ABAP Select data from SAP table ESH_S_OM_AOTYPNAF into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ESH_S_OM_AOTYPNAF
*  INTO TABLE @DATA(IT_ESH_S_OM_AOTYPNAF2).
*--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_ESH_S_OM_AOTYPNAF INDEX 1 INTO DATA(WA_ESH_S_OM_AOTYPNAF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ESH_S_OM_AOTYPNAF>-MANDT = 1.
<ESH_S_OM_AOTYPNAF>-MODEL_GUID = 1.
<ESH_S_OM_AOTYPNAF>-ODP_FIELD_GUID = 1.
<ESH_S_OM_AOTYPNAF>-ODP_GUID = 1.
<ESH_S_OM_AOTYPNAF>-ODP_FIELD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ESH_S_OM_AOTYPNAF-ODP_FIELD_TYPE, sy-vline,
  WA_ESH_S_OM_AOTYPNAF-RNODE_FIELD_GUID, sy-vline,
  WA_ESH_S_OM_AOTYPNAF-NAVPATH_GUID, sy-vline,
  WA_ESH_S_OM_AOTYPNAF-T_DATA_TYPE_GUID, sy-vline,
  WA_ESH_S_OM_AOTYPNAF-POSI, sy-vline,
  WA_ESH_S_OM_AOTYPNAF-AGGREGATION_MODE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ESH_S_OM_AOTYPNAF 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_ESH_S_OM_AOTYPNAF 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_ESH_S_OM_AOTYPNAF INTO WA_ESH_S_OM_AOTYPNAF.


*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 DTYPE, internal->external for field DATATYPE
CALL FUNCTION 'CONVERSION_EXIT_DTYPE_OUTPUT'
  EXPORTING
    input =                      WA_ESH_S_OM_AOTYPNAF-DATATYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESH_S_OM_AOTYPNAF-DATATYPE.
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_ESH_S_OM_AOTYPNAF_STR, 
MANDT TYPE STRING,
MODEL_GUID TYPE STRING,
ODP_FIELD_GUID TYPE STRING,
ODP_GUID TYPE STRING,
ODP_FIELD TYPE STRING,
ODP_FIELD_TYPE TYPE STRING,
RNODE_FIELD_GUID TYPE STRING,
NAVPATH_GUID TYPE STRING,
T_DATA_TYPE_GUID TYPE STRING,
POSI TYPE STRING,
AGGREGATION_MODE TYPE STRING,
AUTH_CHK_RELVNT TYPE STRING,
BACKEND_NAME TYPE STRING,
NAVATTR_REQ_GUID TYPE STRING,
SEL_OBLIGATION TYPE STRING,
SEL_MODE TYPE STRING,
OVERRULE_ID TYPE STRING,
NAVIGATION_ATTR TYPE STRING,
MODNAM_SEG TYPE STRING,
TIMESTMP_MOD_SEG TYPE STRING,
AREA_MOD_SEG TYPE STRING,
CRENAM_SEG TYPE STRING,
TIMESTMP_CRE_SEG TYPE STRING,
AREA_CRE_SEG TYPE STRING,
AENAM_SEG TYPE STRING,
TIMESTMP_AEN_SEG TYPE STRING,
ORG_SYSREL_GUID TYPE STRING,
DATA_TYPE_GUID TYPE STRING,
DATA_TYPE TYPE STRING,
DOMNAME TYPE STRING,
DATATYPE TYPE STRING,
INTTYPE TYPE STRING,
LENG TYPE STRING,
INTLEN TYPE STRING,
DECIMALS TYPE STRING,
LOWERCASE TYPE STRING,
CONVEXIT TYPE STRING,
OUTPUTLEN TYPE STRING,
SIGNFLAG TYPE STRING,
FIXED_UOM TYPE STRING,
TEXT_REPOSITORYT TYPE STRING,
TEXT_REPOSITORYF TYPE STRING,
DATA_ELEMENT TYPE STRING,
DGEN_INFO_GUID TYPE STRING,
DMODNAM_SEG TYPE STRING,
DTMESTMP_MOD_SEG TYPE STRING,
DAREA_MOD_SEG TYPE STRING,
DCRENAM_SEG TYPE STRING,
DTMESTMP_CRE_SEG TYPE STRING,
DAREA_CRE_SEG TYPE STRING,
DAENAM_SEG TYPE STRING,
DTMESTMP_AEN_SEG TYPE STRING,
T_ORG_SYSREL_GUID TYPE STRING,
UPDATE_FLAG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ESH_S_OM_AOTYPNAF_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_ESH_S_OM_AOTYPNAF_STR-MANDT sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-MODEL_GUID sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-ODP_FIELD_GUID sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-ODP_GUID sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-ODP_FIELD sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-ODP_FIELD_TYPE sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-RNODE_FIELD_GUID sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-NAVPATH_GUID sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-T_DATA_TYPE_GUID sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-POSI sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-AGGREGATION_MODE sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-AUTH_CHK_RELVNT sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-BACKEND_NAME sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-NAVATTR_REQ_GUID sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-SEL_OBLIGATION sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-SEL_MODE sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-OVERRULE_ID sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-NAVIGATION_ATTR sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-MODNAM_SEG sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-TIMESTMP_MOD_SEG sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-AREA_MOD_SEG sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-CRENAM_SEG sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-TIMESTMP_CRE_SEG sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-AREA_CRE_SEG sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-AENAM_SEG sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-TIMESTMP_AEN_SEG sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-ORG_SYSREL_GUID sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-DATA_TYPE_GUID sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-DATA_TYPE sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-DOMNAME sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-DATATYPE sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-INTTYPE sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-LENG sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-INTLEN sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-DECIMALS sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-LOWERCASE sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-CONVEXIT sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-OUTPUTLEN sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-SIGNFLAG sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-FIXED_UOM sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-TEXT_REPOSITORYT sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-TEXT_REPOSITORYF sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-DATA_ELEMENT sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-DGEN_INFO_GUID sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-DMODNAM_SEG sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-DTMESTMP_MOD_SEG sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-DAREA_MOD_SEG sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-DCRENAM_SEG sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-DTMESTMP_CRE_SEG sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-DAREA_CRE_SEG sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-DAENAM_SEG sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-DTMESTMP_AEN_SEG sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-T_ORG_SYSREL_GUID sy-vline 
WA_ESH_S_OM_AOTYPNAF_STR-UPDATE_FLAG sy-vline      INTO ld_text SEPARATED BY SPACE.

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