ABAP Select data from SAP table MAM_25_TOB_HEADER_SD into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP MAM_25_TOB_HEADER_SD 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 MAM_25_TOB_HEADER_SD. 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 MAM_25_TOB_HEADER_SD 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_MAM_25_TOB_HEADER_SD TYPE STANDARD TABLE OF MAM_25_TOB_HEADER_SD,
      WA_MAM_25_TOB_HEADER_SD TYPE MAM_25_TOB_HEADER_SD,
      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: <MAM_25_TOB_HEADER_SD> TYPE MAM_25_TOB_HEADER_SD.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_MAM_25_TOB_HEADER_SD.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM MAM_25_TOB_HEADER_SD
  INTO TABLE IT_MAM_25_TOB_HEADER_SD.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MAM_25_TOB_HEADER_SD
*  INTO TABLE @DATA(IT_MAM_25_TOB_HEADER_SD2).
*--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_MAM_25_TOB_HEADER_SD INDEX 1 INTO DATA(WA_MAM_25_TOB_HEADER_SD2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_MAM_25_TOB_HEADER_SD ASSIGNING <MAM_25_TOB_HEADER_SD>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MAM_25_TOB_HEADER_SD>-EQUNR = 1.
<MAM_25_TOB_HEADER_SD>-TPLNR = 1.
<MAM_25_TOB_HEADER_SD>-FUNCLOC_DISP = 1.
<MAM_25_TOB_HEADER_SD>-BEGRU = 1.
<MAM_25_TOB_HEADER_SD>-EQTYP = 1.

ENDLOOP.

LOOP AT IT_MAM_25_TOB_HEADER_SD INTO WA_MAM_25_TOB_HEADER_SD.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MAM_25_TOB_HEADER_SD-EQART, sy-vline,
  WA_MAM_25_TOB_HEADER_SD-LVORM, sy-vline,
  WA_MAM_25_TOB_HEADER_SD-OBJNR, sy-vline,
  WA_MAM_25_TOB_HEADER_SD-MATNR, sy-vline,
  WA_MAM_25_TOB_HEADER_SD-SERNR, sy-vline,
  WA_MAM_25_TOB_HEADER_SD-WERK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MAM_25_TOB_HEADER_SD 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_MAM_25_TOB_HEADER_SD 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_MAM_25_TOB_HEADER_SD INTO WA_MAM_25_TOB_HEADER_SD.


*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 EQUNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MAM_25_TOB_HEADER_SD-EQUNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MAM_25_TOB_HEADER_SD-EQUNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TPLNR, internal->external for field TPLNR
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_MAM_25_TOB_HEADER_SD-TPLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MAM_25_TOB_HEADER_SD-TPLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_MAM_25_TOB_HEADER_SD-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MAM_25_TOB_HEADER_SD-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GERNR, internal->external for field SERNR
CALL FUNCTION 'CONVERSION_EXIT_GERNR_OUTPUT'
  EXPORTING
    input =                      WA_MAM_25_TOB_HEADER_SD-SERNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MAM_25_TOB_HEADER_SD-SERNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNDE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MAM_25_TOB_HEADER_SD-KUNDE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MAM_25_TOB_HEADER_SD-KUNDE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field IMRC_POINT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MAM_25_TOB_HEADER_SD-IMRC_POINT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MAM_25_TOB_HEADER_SD-IMRC_POINT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field SUBMT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_MAM_25_TOB_HEADER_SD-SUBMT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MAM_25_TOB_HEADER_SD-SUBMT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field HEQUI
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MAM_25_TOB_HEADER_SD-HEQUI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MAM_25_TOB_HEADER_SD-HEQUI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_MAM_25_TOB_HEADER_SD-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MAM_25_TOB_HEADER_SD-SPRAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TPLNR, internal->external for field TPLMA
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_MAM_25_TOB_HEADER_SD-TPLMA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MAM_25_TOB_HEADER_SD-TPLMA.
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_MAM_25_TOB_HEADER_SD_STR, 
EQUNR TYPE STRING,
TPLNR TYPE STRING,
FUNCLOC_DISP TYPE STRING,
BEGRU TYPE STRING,
EQTYP TYPE STRING,
EQART TYPE STRING,
LVORM TYPE STRING,
OBJNR TYPE STRING,
MATNR TYPE STRING,
SERNR TYPE STRING,
WERK TYPE STRING,
LAGER TYPE STRING,
CHARGE TYPE STRING,
KUNDE TYPE STRING,
IMRC_POINT TYPE STRING,
SUBMT TYPE STRING,
MAPAR TYPE STRING,
HEQUI TYPE STRING,
INGRP TYPE STRING,
TIDNR TYPE STRING,
RBNR TYPE STRING,
WKCTR TYPE STRING,
SPRAS TYPE STRING,
KZLTX TYPE STRING,
SHTXT TYPE STRING,
MLANG TYPE STRING,
TPLKZ TYPE STRING,
FLTYP TYPE STRING,
TPLMA TYPE STRING,
TPLMA_DISP TYPE STRING,
EQFNR TYPE STRING,
SWERK TYPE STRING,
STORT TYPE STRING,
MSGRP TYPE STRING,
BEBER TYPE STRING,
CR_OBJTY TYPE STRING,
PPSID TYPE STRING,
PPSIDI TYPE STRING,
GSBER TYPE STRING,
HEQUI_SHTXT TYPE STRING,
TPLNR_SHTXT TYPE STRING,
TPLMA_SHTXT TYPE STRING,
XA_STAT_PROF TYPE STRING,
NAME1 TYPE STRING,
STREET TYPE STRING,
POST_CODE1 TYPE STRING,
CITY1 TYPE STRING,
COUNTRY TYPE STRING,
TEL_NUMBER TYPE STRING,
ENHANCEMENT_FLAG TYPE STRING,
ME_ACTION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MAM_25_TOB_HEADER_SD_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_MAM_25_TOB_HEADER_SD_STR-EQUNR sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-TPLNR sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-FUNCLOC_DISP sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-BEGRU sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-EQTYP sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-EQART sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-LVORM sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-OBJNR sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-MATNR sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-SERNR sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-WERK sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-LAGER sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-CHARGE sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-KUNDE sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-IMRC_POINT sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-SUBMT sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-MAPAR sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-HEQUI sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-INGRP sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-TIDNR sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-RBNR sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-WKCTR sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-SPRAS sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-KZLTX sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-SHTXT sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-MLANG sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-TPLKZ sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-FLTYP sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-TPLMA sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-TPLMA_DISP sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-EQFNR sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-SWERK sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-STORT sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-MSGRP sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-BEBER sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-CR_OBJTY sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-PPSID sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-PPSIDI sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-GSBER sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-HEQUI_SHTXT sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-TPLNR_SHTXT sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-TPLMA_SHTXT sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-XA_STAT_PROF sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-NAME1 sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-STREET sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-POST_CODE1 sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-CITY1 sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-COUNTRY sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-TEL_NUMBER sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-ENHANCEMENT_FLAG sy-vline 
WA_MAM_25_TOB_HEADER_SD_STR-ME_ACTION sy-vline      INTO ld_text SEPARATED BY SPACE.

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