ABAP Select data from SAP table TCHS_CONDITION into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TCHS_CONDITION
*  INTO TABLE @DATA(IT_TCHS_CONDITION2).
*--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_TCHS_CONDITION INDEX 1 INTO DATA(WA_TCHS_CONDITION2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TCHS_CONDITION>-SKOART = 1.
<TCHS_CONDITION>-DGUEL_KP = 1.
<TCHS_CONDITION>-PKOND = 1.
<TCHS_CONDITION>-SWHRKOND = 1.
<TCHS_CONDITION>-SZSREF = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TCHS_CONDITION-SZSREFVZ, sy-vline,
  WA_TCHS_CONDITION-AMMRHY, sy-vline,
  WA_TCHS_CONDITION-ATTRHY, sy-vline,
  WA_TCHS_CONDITION-DVALUT, sy-vline,
  WA_TCHS_CONDITION-DFAELL, sy-vline,
  WA_TCHS_CONDITION-SVULT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TCHS_CONDITION 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_TCHS_CONDITION 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_TCHS_CONDITION INTO WA_TCHS_CONDITION.


*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_TCHS_CONDITION_STR, 
SKOART TYPE STRING,
DGUEL_KP TYPE STRING,
PKOND TYPE STRING,
SWHRKOND TYPE STRING,
SZSREF TYPE STRING,
SZSREFVZ TYPE STRING,
AMMRHY TYPE STRING,
ATTRHY TYPE STRING,
DVALUT TYPE STRING,
DFAELL TYPE STRING,
SVULT TYPE STRING,
SFULT TYPE STRING,
SKALID TYPE STRING,
SZBMETH TYPE STRING,
SINCL TYPE STRING,
SFORMREF TYPE STRING,
SVWERK TYPE STRING,
SVMETH TYPE STRING,
SFWERK TYPE STRING,
SFMETH TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TCHS_CONDITION_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_TCHS_CONDITION_STR-SKOART sy-vline 
WA_TCHS_CONDITION_STR-DGUEL_KP sy-vline 
WA_TCHS_CONDITION_STR-PKOND sy-vline 
WA_TCHS_CONDITION_STR-SWHRKOND sy-vline 
WA_TCHS_CONDITION_STR-SZSREF sy-vline 
WA_TCHS_CONDITION_STR-SZSREFVZ sy-vline 
WA_TCHS_CONDITION_STR-AMMRHY sy-vline 
WA_TCHS_CONDITION_STR-ATTRHY sy-vline 
WA_TCHS_CONDITION_STR-DVALUT sy-vline 
WA_TCHS_CONDITION_STR-DFAELL sy-vline 
WA_TCHS_CONDITION_STR-SVULT sy-vline 
WA_TCHS_CONDITION_STR-SFULT sy-vline 
WA_TCHS_CONDITION_STR-SKALID sy-vline 
WA_TCHS_CONDITION_STR-SZBMETH sy-vline 
WA_TCHS_CONDITION_STR-SINCL sy-vline 
WA_TCHS_CONDITION_STR-SFORMREF sy-vline 
WA_TCHS_CONDITION_STR-SVWERK sy-vline 
WA_TCHS_CONDITION_STR-SVMETH sy-vline 
WA_TCHS_CONDITION_STR-SFWERK sy-vline 
WA_TCHS_CONDITION_STR-SFMETH sy-vline      INTO ld_text SEPARATED BY SPACE.

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