ABAP Select data from SAP table CCIHS_ERSEL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CCIHS_ERSEL
*  INTO TABLE @DATA(IT_CCIHS_ERSEL2).
*--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_CCIHS_ERSEL INDEX 1 INTO DATA(WA_CCIHS_ERSEL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CCIHS_ERSEL>-MANDT = 1.
<CCIHS_ERSEL>-WAID = 1.
<CCIHS_ERSEL>-WAVERS = 1.
<CCIHS_ERSEL>-WATYPE = 1.
<CCIHS_ERSEL>-WATYPENAM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CCIHS_ERSEL-WANAM, sy-vline,
  WA_CCIHS_ERSEL-EPTYPE, sy-vline,
  WA_CCIHS_ERSEL-EPTYPENAM, sy-vline,
  WA_CCIHS_ERSEL-EPID, sy-vline,
  WA_CCIHS_ERSEL-EPNAM, sy-vline,
  WA_CCIHS_ERSEL-AENNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CCIHS_ERSEL 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_CCIHS_ERSEL 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_CCIHS_ERSEL INTO WA_CCIHS_ERSEL.


*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 CHRID, internal->external for field WAID
CALL FUNCTION 'CONVERSION_EXIT_CHRID_OUTPUT'
  EXPORTING
    input =                      WA_CCIHS_ERSEL-WAID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCIHS_ERSEL-WAID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AENNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CCIHS_ERSEL-AENNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCIHS_ERSEL-AENNR.
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_CCIHS_ERSEL_STR, 
MANDT TYPE STRING,
WAID TYPE STRING,
WAVERS TYPE STRING,
WATYPE TYPE STRING,
WATYPENAM TYPE STRING,
WANAM TYPE STRING,
EPTYPE TYPE STRING,
EPTYPENAM TYPE STRING,
EPID TYPE STRING,
EPNAM TYPE STRING,
AENNR TYPE STRING,
VALDAT TYPE STRING,
STATBUTTON TYPE STRING,
STATFLG1 TYPE STRING,
STATFLG2 TYPE STRING,
STATFLG3 TYPE STRING,
OPCOND TYPE STRING,
OPCONDTXT TYPE STRING,
RAFLGNONE TYPE STRING,
RAFLGHIGH TYPE STRING,
RAFLGMED TYPE STRING,
RAFLGLOW TYPE STRING,
MAINRATING TYPE STRING,
MAINRATTXT TYPE STRING,
PATTERNFLG TYPE STRING,
VALFRMAIN TYPE STRING,
VALTOMAIN TYPE STRING,
SEARCHMODEMAIN TYPE STRING,
RAR TYPE STRING,
RARTXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CCIHS_ERSEL_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_CCIHS_ERSEL_STR-MANDT sy-vline 
WA_CCIHS_ERSEL_STR-WAID sy-vline 
WA_CCIHS_ERSEL_STR-WAVERS sy-vline 
WA_CCIHS_ERSEL_STR-WATYPE sy-vline 
WA_CCIHS_ERSEL_STR-WATYPENAM sy-vline 
WA_CCIHS_ERSEL_STR-WANAM sy-vline 
WA_CCIHS_ERSEL_STR-EPTYPE sy-vline 
WA_CCIHS_ERSEL_STR-EPTYPENAM sy-vline 
WA_CCIHS_ERSEL_STR-EPID sy-vline 
WA_CCIHS_ERSEL_STR-EPNAM sy-vline 
WA_CCIHS_ERSEL_STR-AENNR sy-vline 
WA_CCIHS_ERSEL_STR-VALDAT sy-vline 
WA_CCIHS_ERSEL_STR-STATBUTTON sy-vline 
WA_CCIHS_ERSEL_STR-STATFLG1 sy-vline 
WA_CCIHS_ERSEL_STR-STATFLG2 sy-vline 
WA_CCIHS_ERSEL_STR-STATFLG3 sy-vline 
WA_CCIHS_ERSEL_STR-OPCOND sy-vline 
WA_CCIHS_ERSEL_STR-OPCONDTXT sy-vline 
WA_CCIHS_ERSEL_STR-RAFLGNONE sy-vline 
WA_CCIHS_ERSEL_STR-RAFLGHIGH sy-vline 
WA_CCIHS_ERSEL_STR-RAFLGMED sy-vline 
WA_CCIHS_ERSEL_STR-RAFLGLOW sy-vline 
WA_CCIHS_ERSEL_STR-MAINRATING sy-vline 
WA_CCIHS_ERSEL_STR-MAINRATTXT sy-vline 
WA_CCIHS_ERSEL_STR-PATTERNFLG sy-vline 
WA_CCIHS_ERSEL_STR-VALFRMAIN sy-vline 
WA_CCIHS_ERSEL_STR-VALTOMAIN sy-vline 
WA_CCIHS_ERSEL_STR-SEARCHMODEMAIN sy-vline 
WA_CCIHS_ERSEL_STR-RAR sy-vline 
WA_CCIHS_ERSEL_STR-RARTXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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