ABAP Select data from SAP table TTMS_DOUBLE_ENTRY_UI into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TTMS_DOUBLE_ENTRY_UI
*  INTO TABLE @DATA(IT_TTMS_DOUBLE_ENTRY_UI2).
*--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_TTMS_DOUBLE_ENTRY_UI INDEX 1 INTO DATA(WA_TTMS_DOUBLE_ENTRY_UI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TTMS_DOUBLE_ENTRY_UI>-BUKRS = 1.
<TTMS_DOUBLE_ENTRY_UI>-RFHA = 1.
<TTMS_DOUBLE_ENTRY_UI>-SGSART = 1.
<TTMS_DOUBLE_ENTRY_UI>-SFHAART = 1.
<TTMS_DOUBLE_ENTRY_UI>-KONTRH = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TTMS_DOUBLE_ENTRY_UI-WGSCHFT, sy-vline,
  WA_TTMS_DOUBLE_ENTRY_UI-RMAID, sy-vline,
  WA_TTMS_DOUBLE_ENTRY_UI-RPORTB, sy-vline,
  WA_TTMS_DOUBLE_ENTRY_UI-RANL, sy-vline,
  WA_TTMS_DOUBLE_ENTRY_UI-XORDER, sy-vline,
  WA_TTMS_DOUBLE_ENTRY_UI-XVERTRAG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TTMS_DOUBLE_ENTRY_UI 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_TTMS_DOUBLE_ENTRY_UI 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_TTMS_DOUBLE_ENTRY_UI INTO WA_TTMS_DOUBLE_ENTRY_UI.


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

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

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

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

*Conversion exit ALPHA, internal->external for field RFHA_2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TTMS_DOUBLE_ENTRY_UI-RFHA_2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TTMS_DOUBLE_ENTRY_UI-RFHA_2.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field EXT_RFHA_2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TTMS_DOUBLE_ENTRY_UI-EXT_RFHA_2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TTMS_DOUBLE_ENTRY_UI-EXT_RFHA_2.
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_TTMS_DOUBLE_ENTRY_UI_STR, 
BUKRS TYPE STRING,
RFHA TYPE STRING,
SGSART TYPE STRING,
SFHAART TYPE STRING,
KONTRH TYPE STRING,
WGSCHFT TYPE STRING,
RMAID TYPE STRING,
RPORTB TYPE STRING,
RANL TYPE STRING,
XORDER TYPE STRING,
XVERTRAG TYPE STRING,
CRUSER TYPE STRING,
RFHA_2 TYPE STRING,
SGSART_2 TYPE STRING,
SFHAART_2 TYPE STRING,
RPORTB_2 TYPE STRING,
EXT_RFHA TYPE STRING,
EXT_RFHA_2 TYPE STRING,
XBUKRS TYPE STRING,
XKONTRH TYPE STRING,
XGSART TYPE STRING,
XFHAART TYPE STRING,
XGSART_2 TYPE STRING,
XFHAART_2 TYPE STRING,
XPORTB TYPE STRING,
XPORTB_2 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TTMS_DOUBLE_ENTRY_UI_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_TTMS_DOUBLE_ENTRY_UI_STR-BUKRS sy-vline 
WA_TTMS_DOUBLE_ENTRY_UI_STR-RFHA sy-vline 
WA_TTMS_DOUBLE_ENTRY_UI_STR-SGSART sy-vline 
WA_TTMS_DOUBLE_ENTRY_UI_STR-SFHAART sy-vline 
WA_TTMS_DOUBLE_ENTRY_UI_STR-KONTRH sy-vline 
WA_TTMS_DOUBLE_ENTRY_UI_STR-WGSCHFT sy-vline 
WA_TTMS_DOUBLE_ENTRY_UI_STR-RMAID sy-vline 
WA_TTMS_DOUBLE_ENTRY_UI_STR-RPORTB sy-vline 
WA_TTMS_DOUBLE_ENTRY_UI_STR-RANL sy-vline 
WA_TTMS_DOUBLE_ENTRY_UI_STR-XORDER sy-vline 
WA_TTMS_DOUBLE_ENTRY_UI_STR-XVERTRAG sy-vline 
WA_TTMS_DOUBLE_ENTRY_UI_STR-CRUSER sy-vline 
WA_TTMS_DOUBLE_ENTRY_UI_STR-RFHA_2 sy-vline 
WA_TTMS_DOUBLE_ENTRY_UI_STR-SGSART_2 sy-vline 
WA_TTMS_DOUBLE_ENTRY_UI_STR-SFHAART_2 sy-vline 
WA_TTMS_DOUBLE_ENTRY_UI_STR-RPORTB_2 sy-vline 
WA_TTMS_DOUBLE_ENTRY_UI_STR-EXT_RFHA sy-vline 
WA_TTMS_DOUBLE_ENTRY_UI_STR-EXT_RFHA_2 sy-vline 
WA_TTMS_DOUBLE_ENTRY_UI_STR-XBUKRS sy-vline 
WA_TTMS_DOUBLE_ENTRY_UI_STR-XKONTRH sy-vline 
WA_TTMS_DOUBLE_ENTRY_UI_STR-XGSART sy-vline 
WA_TTMS_DOUBLE_ENTRY_UI_STR-XFHAART sy-vline 
WA_TTMS_DOUBLE_ENTRY_UI_STR-XGSART_2 sy-vline 
WA_TTMS_DOUBLE_ENTRY_UI_STR-XFHAART_2 sy-vline 
WA_TTMS_DOUBLE_ENTRY_UI_STR-XPORTB sy-vline 
WA_TTMS_DOUBLE_ENTRY_UI_STR-XPORTB_2 sy-vline      INTO ld_text SEPARATED BY SPACE.

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