ABAP Select data from SAP table TDS_MM_IM_GR_FDP_HEAD_TAB into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TDS_MM_IM_GR_FDP_HEAD_TAB 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_MM_IM_GR_FDP_HEAD_TAB. 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_MM_IM_GR_FDP_HEAD_TAB 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_MM_IM_GR_FDP_HEAD_TAB TYPE STANDARD TABLE OF TDS_MM_IM_GR_FDP_HEAD_TAB,
      WA_TDS_MM_IM_GR_FDP_HEAD_TAB TYPE TDS_MM_IM_GR_FDP_HEAD_TAB,
      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_MM_IM_GR_FDP_HEAD_TAB> TYPE TDS_MM_IM_GR_FDP_HEAD_TAB.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TDS_MM_IM_GR_FDP_HEAD_TAB
*  INTO TABLE @DATA(IT_TDS_MM_IM_GR_FDP_HEAD_TAB2).
*--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_MM_IM_GR_FDP_HEAD_TAB INDEX 1 INTO DATA(WA_TDS_MM_IM_GR_FDP_HEAD_TAB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TDS_MM_IM_GR_FDP_HEAD_TAB>-MATERIALDOCUMENT = 1.
<TDS_MM_IM_GR_FDP_HEAD_TAB>-MATERIALDOCUMENTYEAR = 1.
<TDS_MM_IM_GR_FDP_HEAD_TAB>-MATERIALDOCUMENTITEM = 1.
<TDS_MM_IM_GR_FDP_HEAD_TAB>-MATERIAL = 1.
<TDS_MM_IM_GR_FDP_HEAD_TAB>-STORAGELOCATION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TDS_MM_IM_GR_FDP_HEAD_TAB-PURCHASINGDOCUMENT, sy-vline,
  WA_TDS_MM_IM_GR_FDP_HEAD_TAB-PLANT, sy-vline,
  WA_TDS_MM_IM_GR_FDP_HEAD_TAB-GOODSMOVEMENTTYPE, sy-vline,
  WA_TDS_MM_IM_GR_FDP_HEAD_TAB-MATLDOCLATESTPOSTGDATE, sy-vline,
  WA_TDS_MM_IM_GR_FDP_HEAD_TAB-ACCOUNTINGDOCUMENTCREATIONDATE, sy-vline,
  WA_TDS_MM_IM_GR_FDP_HEAD_TAB-PLANTNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TDS_MM_IM_GR_FDP_HEAD_TAB 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_MM_IM_GR_FDP_HEAD_TAB 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_MM_IM_GR_FDP_HEAD_TAB INTO WA_TDS_MM_IM_GR_FDP_HEAD_TAB.


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

*Conversion exit GJAHR, internal->external for field MATERIALDOCUMENTYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_TDS_MM_IM_GR_FDP_HEAD_TAB-MATERIALDOCUMENTYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TDS_MM_IM_GR_FDP_HEAD_TAB-MATERIALDOCUMENTYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_TDS_MM_IM_GR_FDP_HEAD_TAB-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TDS_MM_IM_GR_FDP_HEAD_TAB-MATERIAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PURCHASINGDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TDS_MM_IM_GR_FDP_HEAD_TAB-PURCHASINGDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TDS_MM_IM_GR_FDP_HEAD_TAB-PURCHASINGDOCUMENT.
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_MM_IM_GR_FDP_HEAD_TAB_STR, 
MATERIALDOCUMENT TYPE STRING,
MATERIALDOCUMENTYEAR TYPE STRING,
MATERIALDOCUMENTITEM TYPE STRING,
MATERIAL TYPE STRING,
STORAGELOCATION TYPE STRING,
PURCHASINGDOCUMENT TYPE STRING,
PLANT TYPE STRING,
GOODSMOVEMENTTYPE TYPE STRING,
MATLDOCLATESTPOSTGDATE TYPE STRING,
ACCOUNTINGDOCUMENTCREATIONDATE TYPE STRING,
PLANTNAME TYPE STRING,
DELIVERYINFOTEXT1 TYPE STRING,
DELIVERYINFOTEXT2 TYPE STRING,
VENDORNAME TYPE STRING,
GOODSRECEIPTSTORAGELOCNAME TYPE STRING,
PURCHASINGGROUP TYPE STRING,
PURCHASINGGROUPNAME TYPE STRING,
PURCHASINGGROUPPHONENUMBER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TDS_MM_IM_GR_FDP_HEAD_TAB_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_MM_IM_GR_FDP_HEAD_TAB_STR-MATERIALDOCUMENT sy-vline 
WA_TDS_MM_IM_GR_FDP_HEAD_TAB_STR-MATERIALDOCUMENTYEAR sy-vline 
WA_TDS_MM_IM_GR_FDP_HEAD_TAB_STR-MATERIALDOCUMENTITEM sy-vline 
WA_TDS_MM_IM_GR_FDP_HEAD_TAB_STR-MATERIAL sy-vline 
WA_TDS_MM_IM_GR_FDP_HEAD_TAB_STR-STORAGELOCATION sy-vline 
WA_TDS_MM_IM_GR_FDP_HEAD_TAB_STR-PURCHASINGDOCUMENT sy-vline 
WA_TDS_MM_IM_GR_FDP_HEAD_TAB_STR-PLANT sy-vline 
WA_TDS_MM_IM_GR_FDP_HEAD_TAB_STR-GOODSMOVEMENTTYPE sy-vline 
WA_TDS_MM_IM_GR_FDP_HEAD_TAB_STR-MATLDOCLATESTPOSTGDATE sy-vline 
WA_TDS_MM_IM_GR_FDP_HEAD_TAB_STR-ACCOUNTINGDOCUMENTCREATIONDATE sy-vline 
WA_TDS_MM_IM_GR_FDP_HEAD_TAB_STR-PLANTNAME sy-vline 
WA_TDS_MM_IM_GR_FDP_HEAD_TAB_STR-DELIVERYINFOTEXT1 sy-vline 
WA_TDS_MM_IM_GR_FDP_HEAD_TAB_STR-DELIVERYINFOTEXT2 sy-vline 
WA_TDS_MM_IM_GR_FDP_HEAD_TAB_STR-VENDORNAME sy-vline 
WA_TDS_MM_IM_GR_FDP_HEAD_TAB_STR-GOODSRECEIPTSTORAGELOCNAME sy-vline 
WA_TDS_MM_IM_GR_FDP_HEAD_TAB_STR-PURCHASINGGROUP sy-vline 
WA_TDS_MM_IM_GR_FDP_HEAD_TAB_STR-PURCHASINGGROUPNAME sy-vline 
WA_TDS_MM_IM_GR_FDP_HEAD_TAB_STR-PURCHASINGGROUPPHONENUMBER sy-vline      INTO ld_text SEPARATED BY SPACE.

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