ABAP Select data from SAP table CCIHS_IALHBUF into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CCIHS_IALHBUF 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_IALHBUF. 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_IALHBUF 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_IALHBUF TYPE STANDARD TABLE OF CCIHS_IALHBUF,
      WA_CCIHS_IALHBUF TYPE CCIHS_IALHBUF,
      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_IALHBUF> TYPE CCIHS_IALHBUF.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CCIHS_IALHBUF
*  INTO TABLE @DATA(IT_CCIHS_IALHBUF2).
*--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_IALHBUF INDEX 1 INTO DATA(WA_CCIHS_IALHBUF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CCIHS_IALHBUF>-VALFLG = 1.
<CCIHS_IALHBUF>-CHCOFLG = 1.
<CCIHS_IALHBUF>-LOCKMOD = 1.
<CCIHS_IALHBUF>-LOGLOCKMOD = 1.
<CCIHS_IALHBUF>-SAVEMOD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CCIHS_IALHBUF-SPLIT, sy-vline,
  WA_CCIHS_IALHBUF-BUF_ORIG_INDEX, sy-vline,
  WA_CCIHS_IALHBUF-CHANGENO, sy-vline,
  WA_CCIHS_IALHBUF-KEYDATE, sy-vline,
  WA_CCIHS_IALHBUF-MANDT, sy-vline,
  WA_CCIHS_IALHBUF-RECN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CCIHS_IALHBUF 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_IALHBUF 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_IALHBUF INTO WA_CCIHS_IALHBUF.


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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field RECNTWAH
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CCIHS_IALHBUF-RECNTWAH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCIHS_IALHBUF-RECNTWAH.
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_IALHBUF_STR, 
VALFLG TYPE STRING,
CHCOFLG TYPE STRING,
LOCKMOD TYPE STRING,
LOGLOCKMOD TYPE STRING,
SAVEMOD TYPE STRING,
SPLIT TYPE STRING,
BUF_ORIG_INDEX TYPE STRING,
CHANGENO TYPE STRING,
KEYDATE TYPE STRING,
MANDT TYPE STRING,
RECN TYPE STRING,
ACTN TYPE STRING,
VALFR TYPE STRING,
VALTO TYPE STRING,
AENNR TYPE STRING,
DELFLG TYPE STRING,
PARKFLG TYPE STRING,
CRDAT TYPE STRING,
CRNAM TYPE STRING,
UPDDAT TYPE STRING,
UPDNAM TYPE STRING,
SRSID TYPE STRING,
OWNID TYPE STRING,
RECNROOT TYPE STRING,
IALID TYPE STRING,
IATYPE TYPE STRING,
IAPLANT TYPE STRING,
OBJNR TYPE STRING,
IASTATUS TYPE STRING,
EVDESC TYPE STRING,
DMTYPE TYPE STRING,
TPLNR TYPE STRING,
EQUNR TYPE STRING,
EQDESC TYPE STRING,
FATALFLG TYPE STRING,
CNTRFLG TYPE STRING,
INVRESULT TYPE STRING,
INVRESULTFLG TYPE STRING,
PMFLG TYPE STRING,
PRODLFLG TYPE STRING,
MTNLANGU TYPE STRING,
EVDAT TYPE STRING,
EVTIME TYPE STRING,
RECNTWAH TYPE STRING,
ACLOC TYPE STRING,
ACLOCDESC TYPE STRING,
EVTIMEZONE TYPE STRING,
IAREPHDFLG TYPE STRING,
FLPLANT TYPE STRING,
IATPYETXT TYPE STRING,
IAPLANTXT TYPE STRING,
STTXT TYPE STRING,
DMTYPETXT TYPE STRING,
PLTXT TYPE STRING,
EQTXT TYPE STRING,
WANAM TYPE STRING,
ACLOCTXT TYPE STRING,
ACFLG TYPE STRING,
WTLFLG TYPE STRING,
PMOFLG TYPE STRING,
COFLG TYPE STRING,
QUESFLG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CCIHS_IALHBUF_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_IALHBUF_STR-VALFLG sy-vline 
WA_CCIHS_IALHBUF_STR-CHCOFLG sy-vline 
WA_CCIHS_IALHBUF_STR-LOCKMOD sy-vline 
WA_CCIHS_IALHBUF_STR-LOGLOCKMOD sy-vline 
WA_CCIHS_IALHBUF_STR-SAVEMOD sy-vline 
WA_CCIHS_IALHBUF_STR-SPLIT sy-vline 
WA_CCIHS_IALHBUF_STR-BUF_ORIG_INDEX sy-vline 
WA_CCIHS_IALHBUF_STR-CHANGENO sy-vline 
WA_CCIHS_IALHBUF_STR-KEYDATE sy-vline 
WA_CCIHS_IALHBUF_STR-MANDT sy-vline 
WA_CCIHS_IALHBUF_STR-RECN sy-vline 
WA_CCIHS_IALHBUF_STR-ACTN sy-vline 
WA_CCIHS_IALHBUF_STR-VALFR sy-vline 
WA_CCIHS_IALHBUF_STR-VALTO sy-vline 
WA_CCIHS_IALHBUF_STR-AENNR sy-vline 
WA_CCIHS_IALHBUF_STR-DELFLG sy-vline 
WA_CCIHS_IALHBUF_STR-PARKFLG sy-vline 
WA_CCIHS_IALHBUF_STR-CRDAT sy-vline 
WA_CCIHS_IALHBUF_STR-CRNAM sy-vline 
WA_CCIHS_IALHBUF_STR-UPDDAT sy-vline 
WA_CCIHS_IALHBUF_STR-UPDNAM sy-vline 
WA_CCIHS_IALHBUF_STR-SRSID sy-vline 
WA_CCIHS_IALHBUF_STR-OWNID sy-vline 
WA_CCIHS_IALHBUF_STR-RECNROOT sy-vline 
WA_CCIHS_IALHBUF_STR-IALID sy-vline 
WA_CCIHS_IALHBUF_STR-IATYPE sy-vline 
WA_CCIHS_IALHBUF_STR-IAPLANT sy-vline 
WA_CCIHS_IALHBUF_STR-OBJNR sy-vline 
WA_CCIHS_IALHBUF_STR-IASTATUS sy-vline 
WA_CCIHS_IALHBUF_STR-EVDESC sy-vline 
WA_CCIHS_IALHBUF_STR-DMTYPE sy-vline 
WA_CCIHS_IALHBUF_STR-TPLNR sy-vline 
WA_CCIHS_IALHBUF_STR-EQUNR sy-vline 
WA_CCIHS_IALHBUF_STR-EQDESC sy-vline 
WA_CCIHS_IALHBUF_STR-FATALFLG sy-vline 
WA_CCIHS_IALHBUF_STR-CNTRFLG sy-vline 
WA_CCIHS_IALHBUF_STR-INVRESULT sy-vline 
WA_CCIHS_IALHBUF_STR-INVRESULTFLG sy-vline 
WA_CCIHS_IALHBUF_STR-PMFLG sy-vline 
WA_CCIHS_IALHBUF_STR-PRODLFLG sy-vline 
WA_CCIHS_IALHBUF_STR-MTNLANGU sy-vline 
WA_CCIHS_IALHBUF_STR-EVDAT sy-vline 
WA_CCIHS_IALHBUF_STR-EVTIME sy-vline 
WA_CCIHS_IALHBUF_STR-RECNTWAH sy-vline 
WA_CCIHS_IALHBUF_STR-ACLOC sy-vline 
WA_CCIHS_IALHBUF_STR-ACLOCDESC sy-vline 
WA_CCIHS_IALHBUF_STR-EVTIMEZONE sy-vline 
WA_CCIHS_IALHBUF_STR-IAREPHDFLG sy-vline 
WA_CCIHS_IALHBUF_STR-FLPLANT sy-vline 
WA_CCIHS_IALHBUF_STR-IATPYETXT sy-vline 
WA_CCIHS_IALHBUF_STR-IAPLANTXT sy-vline 
WA_CCIHS_IALHBUF_STR-STTXT sy-vline 
WA_CCIHS_IALHBUF_STR-DMTYPETXT sy-vline 
WA_CCIHS_IALHBUF_STR-PLTXT sy-vline 
WA_CCIHS_IALHBUF_STR-EQTXT sy-vline 
WA_CCIHS_IALHBUF_STR-WANAM sy-vline 
WA_CCIHS_IALHBUF_STR-ACLOCTXT sy-vline 
WA_CCIHS_IALHBUF_STR-ACFLG sy-vline 
WA_CCIHS_IALHBUF_STR-WTLFLG sy-vline 
WA_CCIHS_IALHBUF_STR-PMOFLG sy-vline 
WA_CCIHS_IALHBUF_STR-COFLG sy-vline 
WA_CCIHS_IALHBUF_STR-QUESFLG sy-vline      INTO ld_text SEPARATED BY SPACE.

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