ABAP Select data from SAP table CCIHS_IALOG_HEAD into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CCIHS_IALOG_HEAD 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_IALOG_HEAD. 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_IALOG_HEAD 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_IALOG_HEAD TYPE STANDARD TABLE OF CCIHS_IALOG_HEAD,
      WA_CCIHS_IALOG_HEAD TYPE CCIHS_IALOG_HEAD,
      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_IALOG_HEAD> TYPE CCIHS_IALOG_HEAD.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CCIHS_IALOG_HEAD
*  INTO TABLE @DATA(IT_CCIHS_IALOG_HEAD2).
*--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_IALOG_HEAD INDEX 1 INTO DATA(WA_CCIHS_IALOG_HEAD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CCIHS_IALOG_HEAD>-IALID = 1.
<CCIHS_IALOG_HEAD>-IATYPE = 1.
<CCIHS_IALOG_HEAD>-IATYPETXT = 1.
<CCIHS_IALOG_HEAD>-EVDAT = 1.
<CCIHS_IALOG_HEAD>-EVTIME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CCIHS_IALOG_HEAD-EVDESC, sy-vline,
  WA_CCIHS_IALOG_HEAD-IAPLANT, sy-vline,
  WA_CCIHS_IALOG_HEAD-IAPLANTXT, sy-vline,
  WA_CCIHS_IALOG_HEAD-WAID, sy-vline,
  WA_CCIHS_IALOG_HEAD-WANAM, sy-vline,
  WA_CCIHS_IALOG_HEAD-ACLOC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CCIHS_IALOG_HEAD 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_IALOG_HEAD 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_IALOG_HEAD INTO WA_CCIHS_IALOG_HEAD.


*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_IALOG_HEAD-IALID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCIHS_IALOG_HEAD-IALID.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field EQUNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CCIHS_IALOG_HEAD-EQUNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCIHS_IALOG_HEAD-EQUNR.
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_IALOG_HEAD_STR, 
IALID TYPE STRING,
IATYPE TYPE STRING,
IATYPETXT TYPE STRING,
EVDAT TYPE STRING,
EVTIME TYPE STRING,
EVDESC TYPE STRING,
IAPLANT TYPE STRING,
IAPLANTXT TYPE STRING,
WAID TYPE STRING,
WANAM TYPE STRING,
ACLOC TYPE STRING,
ACLOCDESC TYPE STRING,
ACLOCTXT TYPE STRING,
TPLNR TYPE STRING,
PLTXT TYPE STRING,
EQUNR TYPE STRING,
EQTXT TYPE STRING,
EQDESC TYPE STRING,
DMTYPETXT TYPE STRING,
INVRESULT TYPE STRING,
IASTATUS TYPE STRING,
IASHSTATNAM TYPE STRING,
IASTATNAM TYPE STRING,
IALDEADFLG TYPE STRING,
PRODLFLG TYPE STRING,
FLPLANT TYPE STRING,
FLPLANTTXT TYPE STRING,
STRNO TYPE STRING,
EVTIMEZONE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CCIHS_IALOG_HEAD_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_IALOG_HEAD_STR-IALID sy-vline 
WA_CCIHS_IALOG_HEAD_STR-IATYPE sy-vline 
WA_CCIHS_IALOG_HEAD_STR-IATYPETXT sy-vline 
WA_CCIHS_IALOG_HEAD_STR-EVDAT sy-vline 
WA_CCIHS_IALOG_HEAD_STR-EVTIME sy-vline 
WA_CCIHS_IALOG_HEAD_STR-EVDESC sy-vline 
WA_CCIHS_IALOG_HEAD_STR-IAPLANT sy-vline 
WA_CCIHS_IALOG_HEAD_STR-IAPLANTXT sy-vline 
WA_CCIHS_IALOG_HEAD_STR-WAID sy-vline 
WA_CCIHS_IALOG_HEAD_STR-WANAM sy-vline 
WA_CCIHS_IALOG_HEAD_STR-ACLOC sy-vline 
WA_CCIHS_IALOG_HEAD_STR-ACLOCDESC sy-vline 
WA_CCIHS_IALOG_HEAD_STR-ACLOCTXT sy-vline 
WA_CCIHS_IALOG_HEAD_STR-TPLNR sy-vline 
WA_CCIHS_IALOG_HEAD_STR-PLTXT sy-vline 
WA_CCIHS_IALOG_HEAD_STR-EQUNR sy-vline 
WA_CCIHS_IALOG_HEAD_STR-EQTXT sy-vline 
WA_CCIHS_IALOG_HEAD_STR-EQDESC sy-vline 
WA_CCIHS_IALOG_HEAD_STR-DMTYPETXT sy-vline 
WA_CCIHS_IALOG_HEAD_STR-INVRESULT sy-vline 
WA_CCIHS_IALOG_HEAD_STR-IASTATUS sy-vline 
WA_CCIHS_IALOG_HEAD_STR-IASHSTATNAM sy-vline 
WA_CCIHS_IALOG_HEAD_STR-IASTATNAM sy-vline 
WA_CCIHS_IALOG_HEAD_STR-IALDEADFLG sy-vline 
WA_CCIHS_IALOG_HEAD_STR-PRODLFLG sy-vline 
WA_CCIHS_IALOG_HEAD_STR-FLPLANT sy-vline 
WA_CCIHS_IALOG_HEAD_STR-FLPLANTTXT sy-vline 
WA_CCIHS_IALOG_HEAD_STR-STRNO sy-vline 
WA_CCIHS_IALOG_HEAD_STR-EVTIMEZONE sy-vline      INTO ld_text SEPARATED BY SPACE.

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