ABAP Select data from SAP table TMAS_PRE_D_ER into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TMAS_PRE_D_ER
*  INTO TABLE @DATA(IT_TMAS_PRE_D_ER2).
*--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_TMAS_PRE_D_ER INDEX 1 INTO DATA(WA_TMAS_PRE_D_ER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TMAS_PRE_D_ER>-JOBID = 1.
<TMAS_PRE_D_ER>-TLANG = 1.
<TMAS_PRE_D_ER>-CUSTMNR = 1.
<TMAS_PRE_D_ER>-OBJTYPE = 1.
<TMAS_PRE_D_ER>-OBJNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TMAS_PRE_D_ER-COLLTYP, sy-vline,
  WA_TMAS_PRE_D_ER-COLLNAM, sy-vline,
  WA_TMAS_PRE_D_ER-DOMATYP, sy-vline,
  WA_TMAS_PRE_D_ER-DOMANAM, sy-vline,
  WA_TMAS_PRE_D_ER-SLANG, sy-vline,
  WA_TMAS_PRE_D_ER-CATEGORY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TMAS_PRE_D_ER 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_TMAS_PRE_D_ER 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_TMAS_PRE_D_ER INTO WA_TMAS_PRE_D_ER.


*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 LXELA, internal->external for field TLANG
CALL FUNCTION 'CONVERSION_EXIT_LXELA_OUTPUT'
  EXPORTING
    input =                      WA_TMAS_PRE_D_ER-TLANG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TMAS_PRE_D_ER-TLANG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit LXELA, internal->external for field SLANG
CALL FUNCTION 'CONVERSION_EXIT_LXELA_OUTPUT'
  EXPORTING
    input =                      WA_TMAS_PRE_D_ER-SLANG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TMAS_PRE_D_ER-SLANG.
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_TMAS_PRE_D_ER_STR, 
JOBID TYPE STRING,
TLANG TYPE STRING,
CUSTMNR TYPE STRING,
OBJTYPE TYPE STRING,
OBJNAME TYPE STRING,
COLLTYP TYPE STRING,
COLLNAM TYPE STRING,
DOMATYP TYPE STRING,
DOMANAM TYPE STRING,
SLANG TYPE STRING,
CATEGORY TYPE STRING,
ERROR_TS TYPE STRING,
MESSAGE TYPE STRING,
RESULT_TS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TMAS_PRE_D_ER_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_TMAS_PRE_D_ER_STR-JOBID sy-vline 
WA_TMAS_PRE_D_ER_STR-TLANG sy-vline 
WA_TMAS_PRE_D_ER_STR-CUSTMNR sy-vline 
WA_TMAS_PRE_D_ER_STR-OBJTYPE sy-vline 
WA_TMAS_PRE_D_ER_STR-OBJNAME sy-vline 
WA_TMAS_PRE_D_ER_STR-COLLTYP sy-vline 
WA_TMAS_PRE_D_ER_STR-COLLNAM sy-vline 
WA_TMAS_PRE_D_ER_STR-DOMATYP sy-vline 
WA_TMAS_PRE_D_ER_STR-DOMANAM sy-vline 
WA_TMAS_PRE_D_ER_STR-SLANG sy-vline 
WA_TMAS_PRE_D_ER_STR-CATEGORY sy-vline 
WA_TMAS_PRE_D_ER_STR-ERROR_TS sy-vline 
WA_TMAS_PRE_D_ER_STR-MESSAGE sy-vline 
WA_TMAS_PRE_D_ER_STR-RESULT_TS sy-vline      INTO ld_text SEPARATED BY SPACE.

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