ABAP Select data from SAP table PIQMODREG_INFOTYPE_TAB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PIQMODREG_INFOTYPE_TAB
*  INTO TABLE @DATA(IT_PIQMODREG_INFOTYPE_TAB2).
*--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_PIQMODREG_INFOTYPE_TAB INDEX 1 INTO DATA(WA_PIQMODREG_INFOTYPE_TAB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PIQMODREG_INFOTYPE_TAB>-SEQUENCE_NR = 1.
<PIQMODREG_INFOTYPE_TAB>-MANDT = 1.
<PIQMODREG_INFOTYPE_TAB>-PLVAR = 1.
<PIQMODREG_INFOTYPE_TAB>-OTYPE = 1.
<PIQMODREG_INFOTYPE_TAB>-OBJID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PIQMODREG_INFOTYPE_TAB-INFTY, sy-vline,
  WA_PIQMODREG_INFOTYPE_TAB-SUBTY, sy-vline,
  WA_PIQMODREG_INFOTYPE_TAB-ISTAT, sy-vline,
  WA_PIQMODREG_INFOTYPE_TAB-PRIOX, sy-vline,
  WA_PIQMODREG_INFOTYPE_TAB-BEGDA, sy-vline,
  WA_PIQMODREG_INFOTYPE_TAB-ENDDA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PIQMODREG_INFOTYPE_TAB 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_PIQMODREG_INFOTYPE_TAB 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_PIQMODREG_INFOTYPE_TAB INTO WA_PIQMODREG_INFOTYPE_TAB.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_PIQMODREG_INFOTYPE_TAB_STR, 
SEQUENCE_NR TYPE STRING,
MANDT TYPE STRING,
PLVAR TYPE STRING,
OTYPE TYPE STRING,
OBJID TYPE STRING,
INFTY TYPE STRING,
SUBTY TYPE STRING,
ISTAT TYPE STRING,
PRIOX TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
VARYF TYPE STRING,
SEQNR TYPE STRING,
AEDTM TYPE STRING,
UNAME TYPE STRING,
REASN TYPE STRING,
HISTO TYPE STRING,
ITXNR TYPE STRING,
HS_STATE TYPE STRING,
PROCESS TYPE STRING,
PROCESS_TP TYPE STRING,
PROCESS_DATE TYPE STRING,
PROCESS_TIME TYPE STRING,
HS_PERID TYPE STRING,
HS_PERYR TYPE STRING,
TABNR TYPE STRING,
CALLUP_POINT TYPE STRING,
BALLOGHANDLE TYPE STRING,
BEG_PROCESS TYPE STRING,
BEG_REASON TYPE STRING,
BEG_KEY_DATE TYPE STRING,
END_PROCESS TYPE STRING,
END_REASON TYPE STRING,
END_KEY_DATE TYPE STRING,
LAST_ATTEND TYPE STRING,
PARTT TYPE STRING,
PROGCLASS TYPE STRING,
ENRCATEG TYPE STRING,
AYEAR TYPE STRING,
PERID TYPE STRING,
PR_STATUS TYPE STRING,
PRS_STATE TYPE STRING,
APPTYPE TYPE STRING,
REASON TYPE STRING,
ACLEVEL TYPE STRING,
REGDATE TYPE STRING,
FEEFL TYPE STRING,
REG_CERT_DATE TYPE STRING,
PERCT TYPE STRING,
REGCLASS TYPE STRING,
CANCPROCESS TYPE STRING,
CANCREASON TYPE STRING,
CANCDATE TYPE STRING,
ADM_GUID TYPE STRING,
IUD_MODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PIQMODREG_INFOTYPE_TAB_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_PIQMODREG_INFOTYPE_TAB_STR-SEQUENCE_NR sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-MANDT sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-PLVAR sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-OTYPE sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-OBJID sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-INFTY sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-SUBTY sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-ISTAT sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-PRIOX sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-BEGDA sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-ENDDA sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-VARYF sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-SEQNR sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-AEDTM sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-UNAME sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-REASN sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-HISTO sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-ITXNR sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-HS_STATE sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-PROCESS sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-PROCESS_TP sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-PROCESS_DATE sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-PROCESS_TIME sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-HS_PERID sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-HS_PERYR sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-TABNR sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-CALLUP_POINT sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-BALLOGHANDLE sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-BEG_PROCESS sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-BEG_REASON sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-BEG_KEY_DATE sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-END_PROCESS sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-END_REASON sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-END_KEY_DATE sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-LAST_ATTEND sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-PARTT sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-PROGCLASS sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-ENRCATEG sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-AYEAR sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-PERID sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-PR_STATUS sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-PRS_STATE sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-APPTYPE sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-REASON sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-ACLEVEL sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-REGDATE sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-FEEFL sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-REG_CERT_DATE sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-PERCT sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-REGCLASS sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-CANCPROCESS sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-CANCREASON sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-CANCDATE sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-ADM_GUID sy-vline 
WA_PIQMODREG_INFOTYPE_TAB_STR-IUD_MODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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