ABAP Select data from SAP table TEMDYN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TEMDYN
*  INTO TABLE @DATA(IT_TEMDYN2).
*--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_TEMDYN INDEX 1 INTO DATA(WA_TEMDYN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TEMDYN>-D_INIT = 1.
<TEMDYN>-D_FEST = 1.
<TEMDYN>-D_REGL = 1.
<TEMDYN>-D_MOVE = 1.
<TEMDYN>-D_UBER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TEMDYN-D_KUND, sy-vline,
  WA_TEMDYN-D_CONV, sy-vline,
  WA_TEMDYN-UNAME_VON, sy-vline,
  WA_TEMDYN-UNAME_NACH, sy-vline,
  WA_TEMDYN-FIRMA_NACH, sy-vline,
  WA_TEMDYN-OBJECT_NACH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TEMDYN 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_TEMDYN 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_TEMDYN INTO WA_TEMDYN.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_TEMDYN_STR, 
D_INIT TYPE STRING,
D_FEST TYPE STRING,
D_REGL TYPE STRING,
D_MOVE TYPE STRING,
D_UBER TYPE STRING,
D_KUND TYPE STRING,
D_CONV TYPE STRING,
UNAME_VON TYPE STRING,
UNAME_NACH TYPE STRING,
FIRMA_NACH TYPE STRING,
OBJECT_NACH TYPE STRING,
KUERZL_NACH TYPE STRING,
FIRMA_NACH_TXT TYPE STRING,
OBJECT_NACH_TXT TYPE STRING,
PRTYPETXT TYPE STRING,
D_LATER TYPE STRING,
D_NOW TYPE STRING,
D_DATE TYPE STRING,
D_TIME TYPE STRING,
D_RELEASED TYPE STRING,
R_REPORT TYPE STRING,
R_UNAME TYPE STRING,
R_DATUM TYPE STRING,
R_UZEIT TYPE STRING,
R_PERFTOOL TYPE STRING,
R_ROWS TYPE STRING,
D_PACK TYPE STRING,
D_CHAR TYPE STRING,
D_BATCH_WP TYPE STRING,
D_DIALOG_WP TYPE STRING,
TR_CONVOBJ TYPE STRING,
TR_FVALUE TYPE STRING,
TR_DOCU TYPE STRING,
TR_DOCU_SY TYPE STRING,
TR_DOCU_ALL TYPE STRING,
TR_DDIC TYPE STRING,
TR_REPOSITORY TYPE STRING,
OPSYS TYPE STRING,
OPSYS_BACK TYPE STRING,
LEGFIELD TYPE STRING,
LEGFORM TYPE STRING,
TR_CONVVAL TYPE STRING,
FIRMAT_NACH TYPE STRING,
FIRMA_COMP TYPE STRING,
OBJECT_COMP TYPE STRING,
DEST_COMP TYPE STRING,
D_ATTRIBUTE TYPE STRING,
ICON_CUST TYPE STRING,
ICON_REQU TYPE STRING,
ICON_HIDE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TEMDYN_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_TEMDYN_STR-D_INIT sy-vline 
WA_TEMDYN_STR-D_FEST sy-vline 
WA_TEMDYN_STR-D_REGL sy-vline 
WA_TEMDYN_STR-D_MOVE sy-vline 
WA_TEMDYN_STR-D_UBER sy-vline 
WA_TEMDYN_STR-D_KUND sy-vline 
WA_TEMDYN_STR-D_CONV sy-vline 
WA_TEMDYN_STR-UNAME_VON sy-vline 
WA_TEMDYN_STR-UNAME_NACH sy-vline 
WA_TEMDYN_STR-FIRMA_NACH sy-vline 
WA_TEMDYN_STR-OBJECT_NACH sy-vline 
WA_TEMDYN_STR-KUERZL_NACH sy-vline 
WA_TEMDYN_STR-FIRMA_NACH_TXT sy-vline 
WA_TEMDYN_STR-OBJECT_NACH_TXT sy-vline 
WA_TEMDYN_STR-PRTYPETXT sy-vline 
WA_TEMDYN_STR-D_LATER sy-vline 
WA_TEMDYN_STR-D_NOW sy-vline 
WA_TEMDYN_STR-D_DATE sy-vline 
WA_TEMDYN_STR-D_TIME sy-vline 
WA_TEMDYN_STR-D_RELEASED sy-vline 
WA_TEMDYN_STR-R_REPORT sy-vline 
WA_TEMDYN_STR-R_UNAME sy-vline 
WA_TEMDYN_STR-R_DATUM sy-vline 
WA_TEMDYN_STR-R_UZEIT sy-vline 
WA_TEMDYN_STR-R_PERFTOOL sy-vline 
WA_TEMDYN_STR-R_ROWS sy-vline 
WA_TEMDYN_STR-D_PACK sy-vline 
WA_TEMDYN_STR-D_CHAR sy-vline 
WA_TEMDYN_STR-D_BATCH_WP sy-vline 
WA_TEMDYN_STR-D_DIALOG_WP sy-vline 
WA_TEMDYN_STR-TR_CONVOBJ sy-vline 
WA_TEMDYN_STR-TR_FVALUE sy-vline 
WA_TEMDYN_STR-TR_DOCU sy-vline 
WA_TEMDYN_STR-TR_DOCU_SY sy-vline 
WA_TEMDYN_STR-TR_DOCU_ALL sy-vline 
WA_TEMDYN_STR-TR_DDIC sy-vline 
WA_TEMDYN_STR-TR_REPOSITORY sy-vline 
WA_TEMDYN_STR-OPSYS sy-vline 
WA_TEMDYN_STR-OPSYS_BACK sy-vline 
WA_TEMDYN_STR-LEGFIELD sy-vline 
WA_TEMDYN_STR-LEGFORM sy-vline 
WA_TEMDYN_STR-TR_CONVVAL sy-vline 
WA_TEMDYN_STR-FIRMAT_NACH sy-vline 
WA_TEMDYN_STR-FIRMA_COMP sy-vline 
WA_TEMDYN_STR-OBJECT_COMP sy-vline 
WA_TEMDYN_STR-DEST_COMP sy-vline 
WA_TEMDYN_STR-D_ATTRIBUTE sy-vline 
WA_TEMDYN_STR-ICON_CUST sy-vline 
WA_TEMDYN_STR-ICON_REQU sy-vline 
WA_TEMDYN_STR-ICON_HIDE sy-vline      INTO ld_text SEPARATED BY SPACE.

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