ABAP Select data from SAP table TYCALL_IMP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TYCALL_IMP
*  INTO TABLE @DATA(IT_TYCALL_IMP2).
*--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_TYCALL_IMP INDEX 1 INTO DATA(WA_TYCALL_IMP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TYCALL_IMP>-ADD_PARA = 1.
<TYCALL_IMP>-KOKRS = 1.
<TYCALL_IMP>-BUKRS = 1.
<TYCALL_IMP>-OBJ_TEXT = 1.
<TYCALL_IMP>-NPLNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TYCALL_IMP-VORNR, sy-vline,
  WA_TYCALL_IMP-KDAUF, sy-vline,
  WA_TYCALL_IMP-KDPOS, sy-vline,
  WA_TYCALL_IMP-GSBER, sy-vline,
  WA_TYCALL_IMP-PRCTR, sy-vline,
  WA_TYCALL_IMP-WERKS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TYCALL_IMP 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_TYCALL_IMP 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_TYCALL_IMP INTO WA_TYCALL_IMP.


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

*Conversion exit NUMCV, internal->external for field VORNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_TYCALL_IMP-VORNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TYCALL_IMP-VORNR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_TYCALL_IMP-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TYCALL_IMP-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field PSPNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_TYCALL_IMP-PSPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TYCALL_IMP-PSPNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field OTYPE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TYCALL_IMP-OTYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TYCALL_IMP-OTYPE.
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_TYCALL_IMP_STR, 
ADD_PARA TYPE STRING,
KOKRS TYPE STRING,
BUKRS TYPE STRING,
OBJ_TEXT TYPE STRING,
NPLNR TYPE STRING,
VORNR TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
GSBER TYPE STRING,
PRCTR TYPE STRING,
WERKS TYPE STRING,
MATNR TYPE STRING,
ABUKR TYPE STRING,
PSPNR TYPE STRING,
FUNC_AREA TYPE STRING,
APROF TYPE STRING,
AVTYP TYPE STRING,
BUREG TYPE STRING,
MODE TYPE STRING,
OBJNR TYPE STRING,
XFUNCSAVE TYPE STRING,
XREVENUE TYPE STRING,
XPLINT TYPE STRING,
IVPRO TYPE STRING,
AVORG TYPE STRING,
JVINFO TYPE STRING,
BUKRS TYPE STRING,
PBUKR TYPE STRING,
VBUKR TYPE STRING,
OTYPE TYPE STRING,
FUNC_PREV_OBJECT TYPE STRING,
FUNC_PREV_NEXT TYPE STRING,
NO_PARAM_AUTH TYPE STRING,
CALL_REC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TYCALL_IMP_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_TYCALL_IMP_STR-ADD_PARA sy-vline 
WA_TYCALL_IMP_STR-KOKRS sy-vline 
WA_TYCALL_IMP_STR-BUKRS sy-vline 
WA_TYCALL_IMP_STR-OBJ_TEXT sy-vline 
WA_TYCALL_IMP_STR-NPLNR sy-vline 
WA_TYCALL_IMP_STR-VORNR sy-vline 
WA_TYCALL_IMP_STR-KDAUF sy-vline 
WA_TYCALL_IMP_STR-KDPOS sy-vline 
WA_TYCALL_IMP_STR-GSBER sy-vline 
WA_TYCALL_IMP_STR-PRCTR sy-vline 
WA_TYCALL_IMP_STR-WERKS sy-vline 
WA_TYCALL_IMP_STR-MATNR sy-vline 
WA_TYCALL_IMP_STR-ABUKR sy-vline 
WA_TYCALL_IMP_STR-PSPNR sy-vline 
WA_TYCALL_IMP_STR-FUNC_AREA sy-vline 
WA_TYCALL_IMP_STR-APROF sy-vline 
WA_TYCALL_IMP_STR-AVTYP sy-vline 
WA_TYCALL_IMP_STR-BUREG sy-vline 
WA_TYCALL_IMP_STR-MODE sy-vline 
WA_TYCALL_IMP_STR-OBJNR sy-vline 
WA_TYCALL_IMP_STR-XFUNCSAVE sy-vline 
WA_TYCALL_IMP_STR-XREVENUE sy-vline 
WA_TYCALL_IMP_STR-XPLINT sy-vline 
WA_TYCALL_IMP_STR-IVPRO sy-vline 
WA_TYCALL_IMP_STR-AVORG sy-vline 
WA_TYCALL_IMP_STR-JVINFO sy-vline 
WA_TYCALL_IMP_STR-BUKRS sy-vline 
WA_TYCALL_IMP_STR-PBUKR sy-vline 
WA_TYCALL_IMP_STR-VBUKR sy-vline 
WA_TYCALL_IMP_STR-OTYPE sy-vline 
WA_TYCALL_IMP_STR-FUNC_PREV_OBJECT sy-vline 
WA_TYCALL_IMP_STR-FUNC_PREV_NEXT sy-vline 
WA_TYCALL_IMP_STR-NO_PARAM_AUTH sy-vline 
WA_TYCALL_IMP_STR-CALL_REC sy-vline      INTO ld_text SEPARATED BY SPACE.

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