ABAP Select data from SAP table EHCSMS_SPC_IDENT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EHCSMS_SPC_IDENT
*  INTO TABLE @DATA(IT_EHCSMS_SPC_IDENT2).
*--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_EHCSMS_SPC_IDENT INDEX 1 INTO DATA(WA_EHCSMS_SPC_IDENT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EHCSMS_SPC_IDENT>-RECN = 1.
<EHCSMS_SPC_IDENT>-AUTHGRP = 1.
<EHCSMS_SPC_IDENT>-SUBCAT = 1.
<EHCSMS_SPC_IDENT>-POS = 1.
<EHCSMS_SPC_IDENT>-COUNTER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EHCSMS_SPC_IDENT-LANGU, sy-vline,
  WA_EHCSMS_SPC_IDENT-IDTYPE, sy-vline,
  WA_EHCSMS_SPC_IDENT-IDCAT, sy-vline,
  WA_EHCSMS_SPC_IDENT-IDENT, sy-vline,
  WA_EHCSMS_SPC_IDENT-LTXTFLG, sy-vline,
  WA_EHCSMS_SPC_IDENT-MATINFO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EHCSMS_SPC_IDENT 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_EHCSMS_SPC_IDENT 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_EHCSMS_SPC_IDENT INTO WA_EHCSMS_SPC_IDENT.


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

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

*Conversion exit ALPHA, internal->external for field RI_RECN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EHCSMS_SPC_IDENT-RI_RECN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHCSMS_SPC_IDENT-RI_RECN.
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_EHCSMS_SPC_IDENT_STR, 
RECN TYPE STRING,
AUTHGRP TYPE STRING,
SUBCAT TYPE STRING,
POS TYPE STRING,
COUNTER TYPE STRING,
LANGU TYPE STRING,
IDTYPE TYPE STRING,
IDCAT TYPE STRING,
IDENT TYPE STRING,
LTXTFLG TYPE STRING,
MATINFO TYPE STRING,
RI_RECN TYPE STRING,
IDCNAM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EHCSMS_SPC_IDENT_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_EHCSMS_SPC_IDENT_STR-RECN sy-vline 
WA_EHCSMS_SPC_IDENT_STR-AUTHGRP sy-vline 
WA_EHCSMS_SPC_IDENT_STR-SUBCAT sy-vline 
WA_EHCSMS_SPC_IDENT_STR-POS sy-vline 
WA_EHCSMS_SPC_IDENT_STR-COUNTER sy-vline 
WA_EHCSMS_SPC_IDENT_STR-LANGU sy-vline 
WA_EHCSMS_SPC_IDENT_STR-IDTYPE sy-vline 
WA_EHCSMS_SPC_IDENT_STR-IDCAT sy-vline 
WA_EHCSMS_SPC_IDENT_STR-IDENT sy-vline 
WA_EHCSMS_SPC_IDENT_STR-LTXTFLG sy-vline 
WA_EHCSMS_SPC_IDENT_STR-MATINFO sy-vline 
WA_EHCSMS_SPC_IDENT_STR-RI_RECN sy-vline 
WA_EHCSMS_SPC_IDENT_STR-IDCNAM sy-vline      INTO ld_text SEPARATED BY SPACE.

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