ABAP Select data from SAP table IQIFIELD into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IQIFIELD
*  INTO TABLE @DATA(IT_IQIFIELD2).
*--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_IQIFIELD INDEX 1 INTO DATA(WA_IQIFIELD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IQIFIELD>-TAB = 1.
<IQIFIELD>-FIELD = 1.
<IQIFIELD>-FTYPE = 1.
<IQIFIELD>-FGROUP = 1.
<IQIFIELD>-FTEXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IQIFIELD-LIKETAB, sy-vline,
  WA_IQIFIELD-LIKEFIELD, sy-vline,
  WA_IQIFIELD-ROLLNAME, sy-vline,
  WA_IQIFIELD-DOMNAME, sy-vline,
  WA_IQIFIELD-LENG, sy-vline,
  WA_IQIFIELD-INTLEN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IQIFIELD 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_IQIFIELD 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_IQIFIELD INTO WA_IQIFIELD.


*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 DTYPE, internal->external for field DATATYPE
CALL FUNCTION 'CONVERSION_EXIT_DTYPE_OUTPUT'
  EXPORTING
    input =                      WA_IQIFIELD-DATATYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IQIFIELD-DATATYPE.
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_IQIFIELD_STR, 
TAB TYPE STRING,
FIELD TYPE STRING,
FTYPE TYPE STRING,
FGROUP TYPE STRING,
FTEXT TYPE STRING,
LIKETAB TYPE STRING,
LIKEFIELD TYPE STRING,
ROLLNAME TYPE STRING,
DOMNAME TYPE STRING,
LENG TYPE STRING,
INTLEN TYPE STRING,
DECIMALS TYPE STRING,
DATATYPE TYPE STRING,
INTTYPE TYPE STRING,
REFTABLE TYPE STRING,
REFFIELD TYPE STRING,
MEMORYID TYPE STRING,
TEXTFIELD TYPE STRING,
OUTPUTLEN TYPE STRING,
ROUND TYPE STRING,
HEADLEN TYPE STRING,
SCRLEN1 TYPE STRING,
SCRLEN2 TYPE STRING,
SCRLEN3 TYPE STRING,
FIELDTEXT TYPE STRING,
REPTEXT TYPE STRING,
SCRTEXT_S TYPE STRING,
SCRTEXT_M TYPE STRING,
SCRTEXT_L TYPE STRING,
NOSUMM TYPE STRING,
CURRYPOS TYPE STRING,
SELOPT TYPE STRING,
SELNAME TYPE STRING,
NOINTERVAL TYPE STRING,
NOEXTENS TYPE STRING,
OBLIGATORY TYPE STRING,
NODISPLAY TYPE STRING,
ORDERNR TYPE STRING,
SELTEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IQIFIELD_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_IQIFIELD_STR-TAB sy-vline 
WA_IQIFIELD_STR-FIELD sy-vline 
WA_IQIFIELD_STR-FTYPE sy-vline 
WA_IQIFIELD_STR-FGROUP sy-vline 
WA_IQIFIELD_STR-FTEXT sy-vline 
WA_IQIFIELD_STR-LIKETAB sy-vline 
WA_IQIFIELD_STR-LIKEFIELD sy-vline 
WA_IQIFIELD_STR-ROLLNAME sy-vline 
WA_IQIFIELD_STR-DOMNAME sy-vline 
WA_IQIFIELD_STR-LENG sy-vline 
WA_IQIFIELD_STR-INTLEN sy-vline 
WA_IQIFIELD_STR-DECIMALS sy-vline 
WA_IQIFIELD_STR-DATATYPE sy-vline 
WA_IQIFIELD_STR-INTTYPE sy-vline 
WA_IQIFIELD_STR-REFTABLE sy-vline 
WA_IQIFIELD_STR-REFFIELD sy-vline 
WA_IQIFIELD_STR-MEMORYID sy-vline 
WA_IQIFIELD_STR-TEXTFIELD sy-vline 
WA_IQIFIELD_STR-OUTPUTLEN sy-vline 
WA_IQIFIELD_STR-ROUND sy-vline 
WA_IQIFIELD_STR-HEADLEN sy-vline 
WA_IQIFIELD_STR-SCRLEN1 sy-vline 
WA_IQIFIELD_STR-SCRLEN2 sy-vline 
WA_IQIFIELD_STR-SCRLEN3 sy-vline 
WA_IQIFIELD_STR-FIELDTEXT sy-vline 
WA_IQIFIELD_STR-REPTEXT sy-vline 
WA_IQIFIELD_STR-SCRTEXT_S sy-vline 
WA_IQIFIELD_STR-SCRTEXT_M sy-vline 
WA_IQIFIELD_STR-SCRTEXT_L sy-vline 
WA_IQIFIELD_STR-NOSUMM sy-vline 
WA_IQIFIELD_STR-CURRYPOS sy-vline 
WA_IQIFIELD_STR-SELOPT sy-vline 
WA_IQIFIELD_STR-SELNAME sy-vline 
WA_IQIFIELD_STR-NOINTERVAL sy-vline 
WA_IQIFIELD_STR-NOEXTENS sy-vline 
WA_IQIFIELD_STR-OBLIGATORY sy-vline 
WA_IQIFIELD_STR-NODISPLAY sy-vline 
WA_IQIFIELD_STR-ORDERNR sy-vline 
WA_IQIFIELD_STR-SELTEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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