ABAP Select data from SAP table PIQCORR_STRU_S00_CONFQ into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PIQCORR_STRU_S00_CONFQ 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 PIQCORR_STRU_S00_CONFQ. 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 PIQCORR_STRU_S00_CONFQ 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_PIQCORR_STRU_S00_CONFQ TYPE STANDARD TABLE OF PIQCORR_STRU_S00_CONFQ,
      WA_PIQCORR_STRU_S00_CONFQ TYPE PIQCORR_STRU_S00_CONFQ,
      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: <PIQCORR_STRU_S00_CONFQ> TYPE PIQCORR_STRU_S00_CONFQ.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PIQCORR_STRU_S00_CONFQ.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PIQCORR_STRU_S00_CONFQ
  INTO TABLE IT_PIQCORR_STRU_S00_CONFQ.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PIQCORR_STRU_S00_CONFQ
*  INTO TABLE @DATA(IT_PIQCORR_STRU_S00_CONFQ2).
*--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_PIQCORR_STRU_S00_CONFQ INDEX 1 INTO DATA(WA_PIQCORR_STRU_S00_CONFQ2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PIQCORR_STRU_S00_CONFQ ASSIGNING <PIQCORR_STRU_S00_CONFQ>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PIQCORR_STRU_S00_CONFQ>-WA_CONFQ = 1.
<PIQCORR_STRU_S00_CONFQ>-STUDENT_ID = 1.
<PIQCORR_STRU_S00_CONFQ>-NORMVAL = 1.
<PIQCORR_STRU_S00_CONFQ>-GRADESYMBOL = 1.
<PIQCORR_STRU_S00_CONFQ>-SCALE = 1.

ENDLOOP.

LOOP AT IT_PIQCORR_STRU_S00_CONFQ INTO WA_PIQCORR_STRU_S00_CONFQ.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PIQCORR_STRU_S00_CONFQ-CQNOTE, sy-vline,
  WA_PIQCORR_STRU_S00_CONFQ-CONF_COMMENT, sy-vline,
  WA_PIQCORR_STRU_S00_CONFQ-CONFER_DATE, sy-vline,
  WA_PIQCORR_STRU_S00_CONFQ-AYEAR, sy-vline,
  WA_PIQCORR_STRU_S00_CONFQ-APERIOD, sy-vline,
  WA_PIQCORR_STRU_S00_CONFQ-VALID_FROM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PIQCORR_STRU_S00_CONFQ 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_PIQCORR_STRU_S00_CONFQ 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_PIQCORR_STRU_S00_CONFQ INTO WA_PIQCORR_STRU_S00_CONFQ.


*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 ISOLA, internal->external for field FINALW_LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_PIQCORR_STRU_S00_CONFQ-FINALW_LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PIQCORR_STRU_S00_CONFQ-FINALW_LANGU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field FINALW_LANGUALT
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_PIQCORR_STRU_S00_CONFQ-FINALW_LANGUALT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PIQCORR_STRU_S00_CONFQ-FINALW_LANGUALT.
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_PIQCORR_STRU_S00_CONFQ_STR, 
WA_CONFQ TYPE STRING,
STUDENT_ID TYPE STRING,
NORMVAL TYPE STRING,
GRADESYMBOL TYPE STRING,
SCALE TYPE STRING,
CQNOTE TYPE STRING,
CONF_COMMENT TYPE STRING,
CONFER_DATE TYPE STRING,
AYEAR TYPE STRING,
APERIOD TYPE STRING,
VALID_FROM TYPE STRING,
VALID_TO TYPE STRING,
TRANSFERRED TYPE STRING,
CQ_ID TYPE STRING,
PERIDFORCQ TYPE STRING,
PERIDFORCQUNIT TYPE STRING,
REFOBJ_OTYPE TYPE STRING,
REFOBJ_REALO TYPE STRING,
COBOK TYPE STRING,
STAGE TYPE STRING,
REFPROC_GUIDTYPE TYPE STRING,
REFPROC_GUID TYPE STRING,
DIPLOMANAME TYPE STRING,
FINALW_ID TYPE STRING,
FINALW_TITLE TYPE STRING,
FINALW_LANGU TYPE STRING,
FINALW_TITLEALT TYPE STRING,
FINALW_LANGUALT TYPE STRING,
ACADHONOR_SYM TYPE STRING,
ACADHONOR_GRADE TYPE STRING,
ACADHONOR_SCALE TYPE STRING,
NOT_COMPLETED TYPE STRING,
REGNUM TYPE STRING,
CQSHORT TYPE STRING,
CQSTEXT TYPE STRING,
REFOBJSHORT TYPE STRING,
REFOBJSTEXT TYPE STRING,
ID TYPE STRING,
PERIDFORCQUNITTXT TYPE STRING,
AYEARTXT TYPE STRING,
APERIODTXT TYPE STRING,
STAGETXT TYPE STRING,
CESHORT TYPE STRING,
CESTEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PIQCORR_STRU_S00_CONFQ_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_PIQCORR_STRU_S00_CONFQ_STR-WA_CONFQ sy-vline 
WA_PIQCORR_STRU_S00_CONFQ_STR-STUDENT_ID sy-vline 
WA_PIQCORR_STRU_S00_CONFQ_STR-NORMVAL sy-vline 
WA_PIQCORR_STRU_S00_CONFQ_STR-GRADESYMBOL sy-vline 
WA_PIQCORR_STRU_S00_CONFQ_STR-SCALE sy-vline 
WA_PIQCORR_STRU_S00_CONFQ_STR-CQNOTE sy-vline 
WA_PIQCORR_STRU_S00_CONFQ_STR-CONF_COMMENT sy-vline 
WA_PIQCORR_STRU_S00_CONFQ_STR-CONFER_DATE sy-vline 
WA_PIQCORR_STRU_S00_CONFQ_STR-AYEAR sy-vline 
WA_PIQCORR_STRU_S00_CONFQ_STR-APERIOD sy-vline 
WA_PIQCORR_STRU_S00_CONFQ_STR-VALID_FROM sy-vline 
WA_PIQCORR_STRU_S00_CONFQ_STR-VALID_TO sy-vline 
WA_PIQCORR_STRU_S00_CONFQ_STR-TRANSFERRED sy-vline 
WA_PIQCORR_STRU_S00_CONFQ_STR-CQ_ID sy-vline 
WA_PIQCORR_STRU_S00_CONFQ_STR-PERIDFORCQ sy-vline 
WA_PIQCORR_STRU_S00_CONFQ_STR-PERIDFORCQUNIT sy-vline 
WA_PIQCORR_STRU_S00_CONFQ_STR-REFOBJ_OTYPE sy-vline 
WA_PIQCORR_STRU_S00_CONFQ_STR-REFOBJ_REALO sy-vline 
WA_PIQCORR_STRU_S00_CONFQ_STR-COBOK sy-vline 
WA_PIQCORR_STRU_S00_CONFQ_STR-STAGE sy-vline 
WA_PIQCORR_STRU_S00_CONFQ_STR-REFPROC_GUIDTYPE sy-vline 
WA_PIQCORR_STRU_S00_CONFQ_STR-REFPROC_GUID sy-vline 
WA_PIQCORR_STRU_S00_CONFQ_STR-DIPLOMANAME sy-vline 
WA_PIQCORR_STRU_S00_CONFQ_STR-FINALW_ID sy-vline 
WA_PIQCORR_STRU_S00_CONFQ_STR-FINALW_TITLE sy-vline 
WA_PIQCORR_STRU_S00_CONFQ_STR-FINALW_LANGU sy-vline 
WA_PIQCORR_STRU_S00_CONFQ_STR-FINALW_TITLEALT sy-vline 
WA_PIQCORR_STRU_S00_CONFQ_STR-FINALW_LANGUALT sy-vline 
WA_PIQCORR_STRU_S00_CONFQ_STR-ACADHONOR_SYM sy-vline 
WA_PIQCORR_STRU_S00_CONFQ_STR-ACADHONOR_GRADE sy-vline 
WA_PIQCORR_STRU_S00_CONFQ_STR-ACADHONOR_SCALE sy-vline 
WA_PIQCORR_STRU_S00_CONFQ_STR-NOT_COMPLETED sy-vline 
WA_PIQCORR_STRU_S00_CONFQ_STR-REGNUM sy-vline 
WA_PIQCORR_STRU_S00_CONFQ_STR-CQSHORT sy-vline 
WA_PIQCORR_STRU_S00_CONFQ_STR-CQSTEXT sy-vline 
WA_PIQCORR_STRU_S00_CONFQ_STR-REFOBJSHORT sy-vline 
WA_PIQCORR_STRU_S00_CONFQ_STR-REFOBJSTEXT sy-vline 
WA_PIQCORR_STRU_S00_CONFQ_STR-ID sy-vline 
WA_PIQCORR_STRU_S00_CONFQ_STR-PERIDFORCQUNITTXT sy-vline 
WA_PIQCORR_STRU_S00_CONFQ_STR-AYEARTXT sy-vline 
WA_PIQCORR_STRU_S00_CONFQ_STR-APERIODTXT sy-vline 
WA_PIQCORR_STRU_S00_CONFQ_STR-STAGETXT sy-vline 
WA_PIQCORR_STRU_S00_CONFQ_STR-CESHORT sy-vline 
WA_PIQCORR_STRU_S00_CONFQ_STR-CESTEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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