ABAP Select data from SAP table TDS_BD_APM_HEAD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TDS_BD_APM_HEAD
*  INTO TABLE @DATA(IT_TDS_BD_APM_HEAD2).
*--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_TDS_BD_APM_HEAD INDEX 1 INTO DATA(WA_TDS_BD_APM_HEAD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TDS_BD_APM_HEAD>-SALESDOCUMENTTYPE = 1.
<TDS_BD_APM_HEAD>-SDDOCUMENTCATEGORY = 1.
<TDS_BD_APM_HEAD>-CREATEDBYUSER = 1.
<TDS_BD_APM_HEAD>-SALESORGANIZATION = 1.
<TDS_BD_APM_HEAD>-DISTRIBUTIONCHANNEL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TDS_BD_APM_HEAD-ORGANIZATIONDIVISION, sy-vline,
  WA_TDS_BD_APM_HEAD-SALESGROUP, sy-vline,
  WA_TDS_BD_APM_HEAD-SALESOFFICE, sy-vline,
  WA_TDS_BD_APM_HEAD-SOLDTOPARTY, sy-vline,
  WA_TDS_BD_APM_HEAD-TOTALNETAMOUNT, sy-vline,
  WA_TDS_BD_APM_HEAD-TRANSACTIONCURRENCY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TDS_BD_APM_HEAD 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_TDS_BD_APM_HEAD 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_TDS_BD_APM_HEAD INTO WA_TDS_BD_APM_HEAD.


*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 AUART, internal->external for field SALESDOCUMENTTYPE
CALL FUNCTION 'CONVERSION_EXIT_AUART_OUTPUT'
  EXPORTING
    input =                      WA_TDS_BD_APM_HEAD-SALESDOCUMENTTYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TDS_BD_APM_HEAD-SALESDOCUMENTTYPE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SOLDTOPARTY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TDS_BD_APM_HEAD-SOLDTOPARTY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TDS_BD_APM_HEAD-SOLDTOPARTY.
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_TDS_BD_APM_HEAD_STR, 
SALESDOCUMENTTYPE TYPE STRING,
SDDOCUMENTCATEGORY TYPE STRING,
CREATEDBYUSER TYPE STRING,
SALESORGANIZATION TYPE STRING,
DISTRIBUTIONCHANNEL TYPE STRING,
ORGANIZATIONDIVISION TYPE STRING,
SALESGROUP TYPE STRING,
SALESOFFICE TYPE STRING,
SOLDTOPARTY TYPE STRING,
TOTALNETAMOUNT TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
SHIPPINGCONDITION TYPE STRING,
INCOTERMSCLASSIFICATION TYPE STRING,
INCOTERMSTRANSFERLOCATION TYPE STRING,
INCOTERMSLOCATION1 TYPE STRING,
CUSTOMERPAYMENTTERMS TYPE STRING,
PAYMENTMETHOD TYPE STRING,
CUSTOMERGROUP TYPE STRING,
DUMMY_SALESDOC_INCL_EEW_PS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TDS_BD_APM_HEAD_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_TDS_BD_APM_HEAD_STR-SALESDOCUMENTTYPE sy-vline 
WA_TDS_BD_APM_HEAD_STR-SDDOCUMENTCATEGORY sy-vline 
WA_TDS_BD_APM_HEAD_STR-CREATEDBYUSER sy-vline 
WA_TDS_BD_APM_HEAD_STR-SALESORGANIZATION sy-vline 
WA_TDS_BD_APM_HEAD_STR-DISTRIBUTIONCHANNEL sy-vline 
WA_TDS_BD_APM_HEAD_STR-ORGANIZATIONDIVISION sy-vline 
WA_TDS_BD_APM_HEAD_STR-SALESGROUP sy-vline 
WA_TDS_BD_APM_HEAD_STR-SALESOFFICE sy-vline 
WA_TDS_BD_APM_HEAD_STR-SOLDTOPARTY sy-vline 
WA_TDS_BD_APM_HEAD_STR-TOTALNETAMOUNT sy-vline 
WA_TDS_BD_APM_HEAD_STR-TRANSACTIONCURRENCY sy-vline 
WA_TDS_BD_APM_HEAD_STR-SHIPPINGCONDITION sy-vline 
WA_TDS_BD_APM_HEAD_STR-INCOTERMSCLASSIFICATION sy-vline 
WA_TDS_BD_APM_HEAD_STR-INCOTERMSTRANSFERLOCATION sy-vline 
WA_TDS_BD_APM_HEAD_STR-INCOTERMSLOCATION1 sy-vline 
WA_TDS_BD_APM_HEAD_STR-CUSTOMERPAYMENTTERMS sy-vline 
WA_TDS_BD_APM_HEAD_STR-PAYMENTMETHOD sy-vline 
WA_TDS_BD_APM_HEAD_STR-CUSTOMERGROUP sy-vline 
WA_TDS_BD_APM_HEAD_STR-DUMMY_SALESDOC_INCL_EEW_PS sy-vline      INTO ld_text SEPARATED BY SPACE.

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