ABAP Select data from SAP table CCIHS_IASEL into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CCIHS_IASEL 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_IASEL. 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_IASEL 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_IASEL TYPE STANDARD TABLE OF CCIHS_IASEL,
      WA_CCIHS_IASEL TYPE CCIHS_IASEL,
      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_IASEL> TYPE CCIHS_IASEL.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CCIHS_IASEL
*  INTO TABLE @DATA(IT_CCIHS_IASEL2).
*--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_IASEL INDEX 1 INTO DATA(WA_CCIHS_IASEL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CCIHS_IASEL>-MANDT = 1.
<CCIHS_IASEL>-IAPLANT = 1.
<CCIHS_IASEL>-IAPLANTTXT = 1.
<CCIHS_IASEL>-IALID = 1.
<CCIHS_IASEL>-FAID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CCIHS_IASEL-IATYPE, sy-vline,
  WA_CCIHS_IASEL-IATYPETXT, sy-vline,
  WA_CCIHS_IASEL-EVDAT, sy-vline,
  WA_CCIHS_IASEL-EVDATFROM, sy-vline,
  WA_CCIHS_IASEL-EVDATTO, sy-vline,
  WA_CCIHS_IASEL-IPPERS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CCIHS_IASEL 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_IASEL 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_IASEL INTO WA_CCIHS_IASEL.


*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 IALID
CALL FUNCTION 'CONVERSION_EXIT_CHRID_OUTPUT'
  EXPORTING
    input =                      WA_CCIHS_IASEL-IALID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCIHS_IASEL-IALID.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit TPLNR, internal->external for field TPLNR
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_CCIHS_IASEL-TPLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCIHS_IASEL-TPLNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field AENNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CCIHS_IASEL-AENNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCIHS_IASEL-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_IASEL_STR, 
MANDT TYPE STRING,
IAPLANT TYPE STRING,
IAPLANTTXT TYPE STRING,
IALID TYPE STRING,
FAID TYPE STRING,
IATYPE TYPE STRING,
IATYPETXT TYPE STRING,
EVDAT TYPE STRING,
EVDATFROM TYPE STRING,
EVDATTO TYPE STRING,
IPPERS TYPE STRING,
PERSFLGEXTERN TYPE STRING,
PERSFLGINTERN TYPE STRING,
IPTYPE TYPE STRING,
IPTYPETXT TYPE STRING,
VORNA TYPE STRING,
NACHN TYPE STRING,
DMTYPE TYPE STRING,
DMTYPETXT TYPE STRING,
TPLNR TYPE STRING,
PLTXT TYPE STRING,
EQUNR TYPE STRING,
EQTXT TYPE STRING,
EQDESC TYPE STRING,
FATALFLG TYPE STRING,
PMFLG TYPE STRING,
PRODLFLG TYPE STRING,
AENNR TYPE STRING,
VALDAT TYPE STRING,
CRDAT TYPE STRING,
CRNAM TYPE STRING,
UPDDAT TYPE STRING,
UPDNAM TYPE STRING,
IASTATUS TYPE STRING,
EVDESC TYPE STRING,
IASHSTATNAM TYPE STRING,
IASTATNAM TYPE STRING,
CRDATFROM TYPE STRING,
CRDATTO TYPE STRING,
UPDDATFROM TYPE STRING,
UPDDATTO TYPE STRING,
VALFR TYPE STRING,
VALTO TYPE STRING,
PERSFLGAPP TYPE STRING,
IPPERSGRP TYPE STRING,
SEARCHMODE TYPE STRING,
FLPLANT TYPE STRING,
STRNO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CCIHS_IASEL_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_IASEL_STR-MANDT sy-vline 
WA_CCIHS_IASEL_STR-IAPLANT sy-vline 
WA_CCIHS_IASEL_STR-IAPLANTTXT sy-vline 
WA_CCIHS_IASEL_STR-IALID sy-vline 
WA_CCIHS_IASEL_STR-FAID sy-vline 
WA_CCIHS_IASEL_STR-IATYPE sy-vline 
WA_CCIHS_IASEL_STR-IATYPETXT sy-vline 
WA_CCIHS_IASEL_STR-EVDAT sy-vline 
WA_CCIHS_IASEL_STR-EVDATFROM sy-vline 
WA_CCIHS_IASEL_STR-EVDATTO sy-vline 
WA_CCIHS_IASEL_STR-IPPERS sy-vline 
WA_CCIHS_IASEL_STR-PERSFLGEXTERN sy-vline 
WA_CCIHS_IASEL_STR-PERSFLGINTERN sy-vline 
WA_CCIHS_IASEL_STR-IPTYPE sy-vline 
WA_CCIHS_IASEL_STR-IPTYPETXT sy-vline 
WA_CCIHS_IASEL_STR-VORNA sy-vline 
WA_CCIHS_IASEL_STR-NACHN sy-vline 
WA_CCIHS_IASEL_STR-DMTYPE sy-vline 
WA_CCIHS_IASEL_STR-DMTYPETXT sy-vline 
WA_CCIHS_IASEL_STR-TPLNR sy-vline 
WA_CCIHS_IASEL_STR-PLTXT sy-vline 
WA_CCIHS_IASEL_STR-EQUNR sy-vline 
WA_CCIHS_IASEL_STR-EQTXT sy-vline 
WA_CCIHS_IASEL_STR-EQDESC sy-vline 
WA_CCIHS_IASEL_STR-FATALFLG sy-vline 
WA_CCIHS_IASEL_STR-PMFLG sy-vline 
WA_CCIHS_IASEL_STR-PRODLFLG sy-vline 
WA_CCIHS_IASEL_STR-AENNR sy-vline 
WA_CCIHS_IASEL_STR-VALDAT sy-vline 
WA_CCIHS_IASEL_STR-CRDAT sy-vline 
WA_CCIHS_IASEL_STR-CRNAM sy-vline 
WA_CCIHS_IASEL_STR-UPDDAT sy-vline 
WA_CCIHS_IASEL_STR-UPDNAM sy-vline 
WA_CCIHS_IASEL_STR-IASTATUS sy-vline 
WA_CCIHS_IASEL_STR-EVDESC sy-vline 
WA_CCIHS_IASEL_STR-IASHSTATNAM sy-vline 
WA_CCIHS_IASEL_STR-IASTATNAM sy-vline 
WA_CCIHS_IASEL_STR-CRDATFROM sy-vline 
WA_CCIHS_IASEL_STR-CRDATTO sy-vline 
WA_CCIHS_IASEL_STR-UPDDATFROM sy-vline 
WA_CCIHS_IASEL_STR-UPDDATTO sy-vline 
WA_CCIHS_IASEL_STR-VALFR sy-vline 
WA_CCIHS_IASEL_STR-VALTO sy-vline 
WA_CCIHS_IASEL_STR-PERSFLGAPP sy-vline 
WA_CCIHS_IASEL_STR-IPPERSGRP sy-vline 
WA_CCIHS_IASEL_STR-SEARCHMODE sy-vline 
WA_CCIHS_IASEL_STR-FLPLANT sy-vline 
WA_CCIHS_IASEL_STR-STRNO sy-vline      INTO ld_text SEPARATED BY SPACE.

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