ABAP Select data from SAP table TXW_EX_COMD_PRC_COND into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TXW_EX_COMD_PRC_COND
*  INTO TABLE @DATA(IT_TXW_EX_COMD_PRC_COND2).
*--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_TXW_EX_COMD_PRC_COND INDEX 1 INTO DATA(WA_TXW_EX_COMD_PRC_COND2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TXW_EX_COMD_PRC_COND>-CLIENT = 1.
<TXW_EX_COMD_PRC_COND>-KPOSN = 1.
<TXW_EX_COMD_PRC_COND>-STUNR = 1.
<TXW_EX_COMD_PRC_COND>-ZAEHK = 1.
<TXW_EX_COMD_PRC_COND>-KSCHL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TXW_EX_COMD_PRC_COND-KDATU, sy-vline,
  WA_TXW_EX_COMD_PRC_COND-KRECH, sy-vline,
  WA_TXW_EX_COMD_PRC_COND-KBETR, sy-vline,
  WA_TXW_EX_COMD_PRC_COND-WAERS, sy-vline,
  WA_TXW_EX_COMD_PRC_COND-KKURS, sy-vline,
  WA_TXW_EX_COMD_PRC_COND-KPEIN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TXW_EX_COMD_PRC_COND 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_TXW_EX_COMD_PRC_COND 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_TXW_EX_COMD_PRC_COND INTO WA_TXW_EX_COMD_PRC_COND.


*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 CUNIT, internal->external for field KMEIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_TXW_EX_COMD_PRC_COND-KMEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TXW_EX_COMD_PRC_COND-KMEIN.
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_TXW_EX_COMD_PRC_COND_STR, 
CLIENT TYPE STRING,
KPOSN TYPE STRING,
STUNR TYPE STRING,
ZAEHK TYPE STRING,
KSCHL TYPE STRING,
KDATU TYPE STRING,
KRECH TYPE STRING,
KBETR TYPE STRING,
WAERS TYPE STRING,
KKURS TYPE STRING,
KPEIN TYPE STRING,
KMEIN TYPE STRING,
KNTYP TYPE STRING,
KSTAT TYPE STRING,
KNUMH TYPE STRING,
MWSK1 TYPE STRING,
MWSK2 TYPE STRING,
KWERT TYPE STRING,
KINAK TYPE STRING,
KOAID TYPE STRING,
KAPPL TYPE STRING,
KAWRT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TXW_EX_COMD_PRC_COND_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_TXW_EX_COMD_PRC_COND_STR-CLIENT sy-vline 
WA_TXW_EX_COMD_PRC_COND_STR-KPOSN sy-vline 
WA_TXW_EX_COMD_PRC_COND_STR-STUNR sy-vline 
WA_TXW_EX_COMD_PRC_COND_STR-ZAEHK sy-vline 
WA_TXW_EX_COMD_PRC_COND_STR-KSCHL sy-vline 
WA_TXW_EX_COMD_PRC_COND_STR-KDATU sy-vline 
WA_TXW_EX_COMD_PRC_COND_STR-KRECH sy-vline 
WA_TXW_EX_COMD_PRC_COND_STR-KBETR sy-vline 
WA_TXW_EX_COMD_PRC_COND_STR-WAERS sy-vline 
WA_TXW_EX_COMD_PRC_COND_STR-KKURS sy-vline 
WA_TXW_EX_COMD_PRC_COND_STR-KPEIN sy-vline 
WA_TXW_EX_COMD_PRC_COND_STR-KMEIN sy-vline 
WA_TXW_EX_COMD_PRC_COND_STR-KNTYP sy-vline 
WA_TXW_EX_COMD_PRC_COND_STR-KSTAT sy-vline 
WA_TXW_EX_COMD_PRC_COND_STR-KNUMH sy-vline 
WA_TXW_EX_COMD_PRC_COND_STR-MWSK1 sy-vline 
WA_TXW_EX_COMD_PRC_COND_STR-MWSK2 sy-vline 
WA_TXW_EX_COMD_PRC_COND_STR-KWERT sy-vline 
WA_TXW_EX_COMD_PRC_COND_STR-KINAK sy-vline 
WA_TXW_EX_COMD_PRC_COND_STR-KOAID sy-vline 
WA_TXW_EX_COMD_PRC_COND_STR-KAPPL sy-vline 
WA_TXW_EX_COMD_PRC_COND_STR-KAWRT sy-vline      INTO ld_text SEPARATED BY SPACE.

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