ABAP Select data from SAP table ICLSC_DI into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICLSC_DI
*  INTO TABLE @DATA(IT_ICLSC_DI2).
*--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_ICLSC_DI INDEX 1 INTO DATA(WA_ICLSC_DI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICLSC_DI>-AKTYP = 1.
<ICLSC_DI>-RLTP1 = 1.
<ICLSC_DI>-RLTP2 = 1.
<ICLSC_DI>-RLTP3 = 1.
<ICLSC_DI>-RLTP4 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICLSC_DI-RLTP5, sy-vline,
  WA_ICLSC_DI-RLTP6, sy-vline,
  WA_ICLSC_DI-RLTP7, sy-vline,
  WA_ICLSC_DI-RLTP8, sy-vline,
  WA_ICLSC_DI-RLTP9, sy-vline,
  WA_ICLSC_DI-SERVCATID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICLSC_DI 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_ICLSC_DI 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_ICLSC_DI INTO WA_ICLSC_DI.


*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 DIAID, internal->external for field DIAGID
CALL FUNCTION 'CONVERSION_EXIT_DIAID_OUTPUT'
  EXPORTING
    input =                      WA_ICLSC_DI-DIAGID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICLSC_DI-DIAGID.
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_ICLSC_DI_STR, 
AKTYP TYPE STRING,
RLTP1 TYPE STRING,
RLTP2 TYPE STRING,
RLTP3 TYPE STRING,
RLTP4 TYPE STRING,
RLTP5 TYPE STRING,
RLTP6 TYPE STRING,
RLTP7 TYPE STRING,
RLTP8 TYPE STRING,
RLTP9 TYPE STRING,
SERVCATID TYPE STRING,
SC_VARIANT TYPE STRING,
SCPOSID_EXT TYPE STRING,
SCPOS_TYPE_ENTRY TYPE STRING,
SCPOSID_INT TYPE STRING,
VALID_TIME TYPE STRING,
COUNTRY TYPE STRING,
REGION TYPE STRING,
DISABILITY_CLASS TYPE STRING,
CHIND_HEAD TYPE STRING,
SCPOS_CURR TYPE STRING,
SCPOS_TYPE TYPE STRING,
SCPOS_XSEL TYPE STRING,
BENTYPE TYPE STRING,
BENTYPE_EXP TYPE STRING,
SCPOS_QUANTITY TYPE STRING,
SCPOS_QUANTITYTO TYPE STRING,
SCPOS_QUANUNIT TYPE STRING,
SCPOS_VALPERUNIT TYPE STRING,
SCPOS_XREIMBURSE TYPE STRING,
SCPOS_XAPPROVAL TYPE STRING,
SCPOSN TYPE STRING,
SCPOSLN TYPE STRING,
SCPOSXLN TYPE STRING,
EFFFROMDA TYPE STRING,
EFFFROMTI TYPE STRING,
EFFTODA TYPE STRING,
EFFTOTI TYPE STRING,
RV TYPE STRING,
RVU TYPE STRING,
AVLENGTH TYPE STRING,
DEDUCTION TYPE STRING,
SURCHARGE TYPE STRING,
LOCALIZATION TYPE STRING,
CATAID TYPE STRING,
DIAGID TYPE STRING,
SCPOS_CALC_EXP TYPE STRING,
SCPOS_TXT_EXP TYPE STRING,
SCPOS_TAXCODEINV TYPE STRING,
CHIND_HINT TYPE STRING,
SCPOSHINT TYPE STRING,
CHIND_ATTRIB TYPE STRING,
SC_ATTRIBUT TYPE STRING,
SEQ_NO TYPE STRING,
VALUE TYPE STRING,
SAWW TYPE STRING,
BENEFIT_RULE TYPE STRING,
MAX_BEN TYPE STRING,
MAX_RULE TYPE STRING,
MIN_BEN TYPE STRING,
MIN_RULE TYPE STRING,
WAITING_PERIOD TYPE STRING,
RETRO_PERIOD TYPE STRING,
MAX_PERIOD TYPE STRING,
MAX_TOTAL TYPE STRING,
FORMULA TYPE STRING,
TOTAL_SCHED TYPE STRING,
SCH_SERVCATID TYPE STRING,
SCH_SC_VARIANT TYPE STRING,
SPOUSE_CHILD_BEN TYPE STRING,
SPOUSE_ONLY_BEN TYPE STRING,
ONE_CHILD_BEN TYPE STRING,
MAX_SPSECHLD_AMT TYPE STRING,
MAX_SPSEONLY_AMT TYPE STRING,
MIN_SPSEONLY_AMT TYPE STRING,
AMOUNT_LIMIT_SC TYPE STRING,
AMOUNT_LIMIT_SO TYPE STRING,
TIME_LIMIT TYPE STRING,
BURIAL_AMOUNT TYPE STRING,
CHILD_MAX_AGE TYPE STRING,
STDNT_MAX_AGE TYPE STRING,
TRANSPORTN_MAX TYPE STRING,
LUMP_SUM TYPE STRING,
FORMULA_DTH TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICLSC_DI_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_ICLSC_DI_STR-AKTYP sy-vline 
WA_ICLSC_DI_STR-RLTP1 sy-vline 
WA_ICLSC_DI_STR-RLTP2 sy-vline 
WA_ICLSC_DI_STR-RLTP3 sy-vline 
WA_ICLSC_DI_STR-RLTP4 sy-vline 
WA_ICLSC_DI_STR-RLTP5 sy-vline 
WA_ICLSC_DI_STR-RLTP6 sy-vline 
WA_ICLSC_DI_STR-RLTP7 sy-vline 
WA_ICLSC_DI_STR-RLTP8 sy-vline 
WA_ICLSC_DI_STR-RLTP9 sy-vline 
WA_ICLSC_DI_STR-SERVCATID sy-vline 
WA_ICLSC_DI_STR-SC_VARIANT sy-vline 
WA_ICLSC_DI_STR-SCPOSID_EXT sy-vline 
WA_ICLSC_DI_STR-SCPOS_TYPE_ENTRY sy-vline 
WA_ICLSC_DI_STR-SCPOSID_INT sy-vline 
WA_ICLSC_DI_STR-VALID_TIME sy-vline 
WA_ICLSC_DI_STR-COUNTRY sy-vline 
WA_ICLSC_DI_STR-REGION sy-vline 
WA_ICLSC_DI_STR-DISABILITY_CLASS sy-vline 
WA_ICLSC_DI_STR-CHIND_HEAD sy-vline 
WA_ICLSC_DI_STR-SCPOS_CURR sy-vline 
WA_ICLSC_DI_STR-SCPOS_TYPE sy-vline 
WA_ICLSC_DI_STR-SCPOS_XSEL sy-vline 
WA_ICLSC_DI_STR-BENTYPE sy-vline 
WA_ICLSC_DI_STR-BENTYPE_EXP sy-vline 
WA_ICLSC_DI_STR-SCPOS_QUANTITY sy-vline 
WA_ICLSC_DI_STR-SCPOS_QUANTITYTO sy-vline 
WA_ICLSC_DI_STR-SCPOS_QUANUNIT sy-vline 
WA_ICLSC_DI_STR-SCPOS_VALPERUNIT sy-vline 
WA_ICLSC_DI_STR-SCPOS_XREIMBURSE sy-vline 
WA_ICLSC_DI_STR-SCPOS_XAPPROVAL sy-vline 
WA_ICLSC_DI_STR-SCPOSN sy-vline 
WA_ICLSC_DI_STR-SCPOSLN sy-vline 
WA_ICLSC_DI_STR-SCPOSXLN sy-vline 
WA_ICLSC_DI_STR-EFFFROMDA sy-vline 
WA_ICLSC_DI_STR-EFFFROMTI sy-vline 
WA_ICLSC_DI_STR-EFFTODA sy-vline 
WA_ICLSC_DI_STR-EFFTOTI sy-vline 
WA_ICLSC_DI_STR-RV sy-vline 
WA_ICLSC_DI_STR-RVU sy-vline 
WA_ICLSC_DI_STR-AVLENGTH sy-vline 
WA_ICLSC_DI_STR-DEDUCTION sy-vline 
WA_ICLSC_DI_STR-SURCHARGE sy-vline 
WA_ICLSC_DI_STR-LOCALIZATION sy-vline 
WA_ICLSC_DI_STR-CATAID sy-vline 
WA_ICLSC_DI_STR-DIAGID sy-vline 
WA_ICLSC_DI_STR-SCPOS_CALC_EXP sy-vline 
WA_ICLSC_DI_STR-SCPOS_TXT_EXP sy-vline 
WA_ICLSC_DI_STR-SCPOS_TAXCODEINV sy-vline 
WA_ICLSC_DI_STR-CHIND_HINT sy-vline 
WA_ICLSC_DI_STR-SCPOSHINT sy-vline 
WA_ICLSC_DI_STR-CHIND_ATTRIB sy-vline 
WA_ICLSC_DI_STR-SC_ATTRIBUT sy-vline 
WA_ICLSC_DI_STR-SEQ_NO sy-vline 
WA_ICLSC_DI_STR-VALUE sy-vline 
WA_ICLSC_DI_STR-SAWW sy-vline 
WA_ICLSC_DI_STR-BENEFIT_RULE sy-vline 
WA_ICLSC_DI_STR-MAX_BEN sy-vline 
WA_ICLSC_DI_STR-MAX_RULE sy-vline 
WA_ICLSC_DI_STR-MIN_BEN sy-vline 
WA_ICLSC_DI_STR-MIN_RULE sy-vline 
WA_ICLSC_DI_STR-WAITING_PERIOD sy-vline 
WA_ICLSC_DI_STR-RETRO_PERIOD sy-vline 
WA_ICLSC_DI_STR-MAX_PERIOD sy-vline 
WA_ICLSC_DI_STR-MAX_TOTAL sy-vline 
WA_ICLSC_DI_STR-FORMULA sy-vline 
WA_ICLSC_DI_STR-TOTAL_SCHED sy-vline 
WA_ICLSC_DI_STR-SCH_SERVCATID sy-vline 
WA_ICLSC_DI_STR-SCH_SC_VARIANT sy-vline 
WA_ICLSC_DI_STR-SPOUSE_CHILD_BEN sy-vline 
WA_ICLSC_DI_STR-SPOUSE_ONLY_BEN sy-vline 
WA_ICLSC_DI_STR-ONE_CHILD_BEN sy-vline 
WA_ICLSC_DI_STR-MAX_SPSECHLD_AMT sy-vline 
WA_ICLSC_DI_STR-MAX_SPSEONLY_AMT sy-vline 
WA_ICLSC_DI_STR-MIN_SPSEONLY_AMT sy-vline 
WA_ICLSC_DI_STR-AMOUNT_LIMIT_SC sy-vline 
WA_ICLSC_DI_STR-AMOUNT_LIMIT_SO sy-vline 
WA_ICLSC_DI_STR-TIME_LIMIT sy-vline 
WA_ICLSC_DI_STR-BURIAL_AMOUNT sy-vline 
WA_ICLSC_DI_STR-CHILD_MAX_AGE sy-vline 
WA_ICLSC_DI_STR-STDNT_MAX_AGE sy-vline 
WA_ICLSC_DI_STR-TRANSPORTN_MAX sy-vline 
WA_ICLSC_DI_STR-LUMP_SUM sy-vline 
WA_ICLSC_DI_STR-FORMULA_DTH sy-vline      INTO ld_text SEPARATED BY SPACE.

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