ABAP Select data from SAP table CAPIPARMS into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CAPIPARMS
*  INTO TABLE @DATA(IT_CAPIPARMS2).
*--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_CAPIPARMS INDEX 1 INTO DATA(WA_CAPIPARMS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CAPIPARMS>-CHARACT = 1.
<CAPIPARMS>-CH_OVRWRT = 1.
<CAPIPARMS>-ENTRY_REQ = 1.
<CAPIPARMS>-VAL_ASS = 1.
<CAPIPARMS>-CH_VALUE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CAPIPARMS-VALH_PARNT, sy-vline,
  WA_CAPIPARMS-VAL_SORT, sy-vline,
  WA_CAPIPARMS-VAL_OVRWRT, sy-vline,
  WA_CAPIPARMS-CLASS, sy-vline,
  WA_CAPIPARMS-CLASS_TYPE, sy-vline,
  WA_CAPIPARMS-MATERIAL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CAPIPARMS 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_CAPIPARMS 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_CAPIPARMS INTO WA_CAPIPARMS.


*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 MATN5, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN5_OUTPUT'
  EXPORTING
    input =                      WA_CAPIPARMS-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CAPIPARMS-MATERIAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field LANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_CAPIPARMS-LANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CAPIPARMS-LANGUAGE.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit MATN1, internal->external for field MATERIAL_LONG
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_CAPIPARMS-MATERIAL_LONG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CAPIPARMS-MATERIAL_LONG.
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_CAPIPARMS_STR, 
CHARACT TYPE STRING,
CH_OVRWRT TYPE STRING,
ENTRY_REQ TYPE STRING,
VAL_ASS TYPE STRING,
CH_VALUE TYPE STRING,
VALH_PARNT TYPE STRING,
VAL_SORT TYPE STRING,
VAL_OVRWRT TYPE STRING,
CLASS TYPE STRING,
CLASS_TYPE TYPE STRING,
MATERIAL TYPE STRING,
DESCRIPT TYPE STRING,
DATE TYPE STRING,
VTLINNOINT TYPE STRING,
VTLINENO TYPE STRING,
VAR_TAB TYPE STRING,
PROC_ORDER TYPE STRING,
DEPENDENCY TYPE STRING,
DEP_TYPE TYPE STRING,
CONST_NET TYPE STRING,
CONSTRAINT TYPE STRING,
LANGUAGE TYPE STRING,
CHANGE_NO TYPE STRING,
RETURN TYPE STRING,
GET_NEXT TYPE STRING,
ORDER TYPE STRING,
ORDER_POS TYPE STRING,
INSTANCE TYPE STRING,
INSTANCE_E TYPE STRING,
FUNCTION_NAME TYPE STRING,
COPY_COUNT TYPE STRING,
CLASS_STATUS TYPE STRING,
FL_DYN_FILTER TYPE STRING,
FL_ONLY_SUM TYPE STRING,
FL_QUICK_CHANGE TYPE STRING,
CH_VALUEX TYPE STRING,
MATERIAL_LONG TYPE STRING,
CH_VALUE_LONG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CAPIPARMS_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_CAPIPARMS_STR-CHARACT sy-vline 
WA_CAPIPARMS_STR-CH_OVRWRT sy-vline 
WA_CAPIPARMS_STR-ENTRY_REQ sy-vline 
WA_CAPIPARMS_STR-VAL_ASS sy-vline 
WA_CAPIPARMS_STR-CH_VALUE sy-vline 
WA_CAPIPARMS_STR-VALH_PARNT sy-vline 
WA_CAPIPARMS_STR-VAL_SORT sy-vline 
WA_CAPIPARMS_STR-VAL_OVRWRT sy-vline 
WA_CAPIPARMS_STR-CLASS sy-vline 
WA_CAPIPARMS_STR-CLASS_TYPE sy-vline 
WA_CAPIPARMS_STR-MATERIAL sy-vline 
WA_CAPIPARMS_STR-DESCRIPT sy-vline 
WA_CAPIPARMS_STR-DATE sy-vline 
WA_CAPIPARMS_STR-VTLINNOINT sy-vline 
WA_CAPIPARMS_STR-VTLINENO sy-vline 
WA_CAPIPARMS_STR-VAR_TAB sy-vline 
WA_CAPIPARMS_STR-PROC_ORDER sy-vline 
WA_CAPIPARMS_STR-DEPENDENCY sy-vline 
WA_CAPIPARMS_STR-DEP_TYPE sy-vline 
WA_CAPIPARMS_STR-CONST_NET sy-vline 
WA_CAPIPARMS_STR-CONSTRAINT sy-vline 
WA_CAPIPARMS_STR-LANGUAGE sy-vline 
WA_CAPIPARMS_STR-CHANGE_NO sy-vline 
WA_CAPIPARMS_STR-RETURN sy-vline 
WA_CAPIPARMS_STR-GET_NEXT sy-vline 
WA_CAPIPARMS_STR-ORDER sy-vline 
WA_CAPIPARMS_STR-ORDER_POS sy-vline 
WA_CAPIPARMS_STR-INSTANCE sy-vline 
WA_CAPIPARMS_STR-INSTANCE_E sy-vline 
WA_CAPIPARMS_STR-FUNCTION_NAME sy-vline 
WA_CAPIPARMS_STR-COPY_COUNT sy-vline 
WA_CAPIPARMS_STR-CLASS_STATUS sy-vline 
WA_CAPIPARMS_STR-FL_DYN_FILTER sy-vline 
WA_CAPIPARMS_STR-FL_ONLY_SUM sy-vline 
WA_CAPIPARMS_STR-FL_QUICK_CHANGE sy-vline 
WA_CAPIPARMS_STR-CH_VALUEX sy-vline 
WA_CAPIPARMS_STR-MATERIAL_LONG sy-vline 
WA_CAPIPARMS_STR-CH_VALUE_LONG sy-vline      INTO ld_text SEPARATED BY SPACE.

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