ABAP Select data from SAP table PIQCA_MODREG_DETAIL 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 PIQCA_MODREG_DETAIL 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 PIQCA_MODREG_DETAIL. 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 PIQCA_MODREG_DETAIL 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_PIQCA_MODREG_DETAIL TYPE STANDARD TABLE OF PIQCA_MODREG_DETAIL,
      WA_PIQCA_MODREG_DETAIL TYPE PIQCA_MODREG_DETAIL,
      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: <PIQCA_MODREG_DETAIL> TYPE PIQCA_MODREG_DETAIL.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PIQCA_MODREG_DETAIL
*  INTO TABLE @DATA(IT_PIQCA_MODREG_DETAIL2).
*--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_PIQCA_MODREG_DETAIL INDEX 1 INTO DATA(WA_PIQCA_MODREG_DETAIL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PIQCA_MODREG_DETAIL>-MODULE_ID = 1.
<PIQCA_MODREG_DETAIL>-BEGDA = 1.
<PIQCA_MODREG_DETAIL>-ENDDA = 1.
<PIQCA_MODREG_DETAIL>-PRIOX = 1.
<PIQCA_MODREG_DETAIL>-SMSTATUS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PIQCA_MODREG_DETAIL-STORREASON, sy-vline,
  WA_PIQCA_MODREG_DETAIL-STORDATE, sy-vline,
  WA_PIQCA_MODREG_DETAIL-CPATTEMP, sy-vline,
  WA_PIQCA_MODREG_DETAIL-CPGAINED, sy-vline,
  WA_PIQCA_MODREG_DETAIL-CPUNIT, sy-vline,
  WA_PIQCA_MODREG_DETAIL-NORM_VAL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PIQCA_MODREG_DETAIL 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_PIQCA_MODREG_DETAIL 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_PIQCA_MODREG_DETAIL INTO WA_PIQCA_MODREG_DETAIL.


*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 CUNIT, internal->external for field CPUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PIQCA_MODREG_DETAIL-CPUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PIQCA_MODREG_DETAIL-CPUNIT.
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_PIQCA_MODREG_DETAIL_STR, 
MODULE_ID TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
PRIOX TYPE STRING,
SMSTATUS TYPE STRING,
STORREASON TYPE STRING,
STORDATE TYPE STRING,
CPATTEMP TYPE STRING,
CPGAINED TYPE STRING,
CPUNIT TYPE STRING,
NORM_VAL TYPE STRING,
BOOKDATE TYPE STRING,
BOOKTIME TYPE STRING,
SMRATING TYPE STRING,
CHARGEFREE TYPE STRING,
TRANSFERFLAG TYPE STRING,
PACKNUMBER TYPE STRING,
VARID TYPE STRING,
PERID TYPE STRING,
PERYR TYPE STRING,
ALT_SCALEID TYPE STRING,
ID TYPE STRING,
BOOKREASON TYPE STRING,
ANNULMENT TYPE STRING,
LOCKFLAG TYPE STRING,
COBOK TYPE STRING,
BOOKING_SUBGROUP_ID TYPE STRING,
ATTNO_TW TYPE STRING,
MODULE_SHORT TYPE STRING,
MODULE_STEXT TYPE STRING,
PERYT TYPE STRING,
PERIT TYPE STRING,
EVPACKAGET TYPE STRING,
SMSTATUST TYPE STRING,
BOOKREASONT TYPE STRING,
STORREASONT TYPE STRING,
SMRATINGT TYPE STRING,
ANNULMENTT TYPE STRING,
SCALE_TEXT TYPE STRING,
CPUNIT_TEXT TYPE STRING,
WAITLISTED TYPE STRING,
WAITL_SIZE TYPE STRING,
WAITL_POSITION TYPE STRING,
WAITL_MOVEUP_ENTITLED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PIQCA_MODREG_DETAIL_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_PIQCA_MODREG_DETAIL_STR-MODULE_ID sy-vline 
WA_PIQCA_MODREG_DETAIL_STR-BEGDA sy-vline 
WA_PIQCA_MODREG_DETAIL_STR-ENDDA sy-vline 
WA_PIQCA_MODREG_DETAIL_STR-PRIOX sy-vline 
WA_PIQCA_MODREG_DETAIL_STR-SMSTATUS sy-vline 
WA_PIQCA_MODREG_DETAIL_STR-STORREASON sy-vline 
WA_PIQCA_MODREG_DETAIL_STR-STORDATE sy-vline 
WA_PIQCA_MODREG_DETAIL_STR-CPATTEMP sy-vline 
WA_PIQCA_MODREG_DETAIL_STR-CPGAINED sy-vline 
WA_PIQCA_MODREG_DETAIL_STR-CPUNIT sy-vline 
WA_PIQCA_MODREG_DETAIL_STR-NORM_VAL sy-vline 
WA_PIQCA_MODREG_DETAIL_STR-BOOKDATE sy-vline 
WA_PIQCA_MODREG_DETAIL_STR-BOOKTIME sy-vline 
WA_PIQCA_MODREG_DETAIL_STR-SMRATING sy-vline 
WA_PIQCA_MODREG_DETAIL_STR-CHARGEFREE sy-vline 
WA_PIQCA_MODREG_DETAIL_STR-TRANSFERFLAG sy-vline 
WA_PIQCA_MODREG_DETAIL_STR-PACKNUMBER sy-vline 
WA_PIQCA_MODREG_DETAIL_STR-VARID sy-vline 
WA_PIQCA_MODREG_DETAIL_STR-PERID sy-vline 
WA_PIQCA_MODREG_DETAIL_STR-PERYR sy-vline 
WA_PIQCA_MODREG_DETAIL_STR-ALT_SCALEID sy-vline 
WA_PIQCA_MODREG_DETAIL_STR-ID sy-vline 
WA_PIQCA_MODREG_DETAIL_STR-BOOKREASON sy-vline 
WA_PIQCA_MODREG_DETAIL_STR-ANNULMENT sy-vline 
WA_PIQCA_MODREG_DETAIL_STR-LOCKFLAG sy-vline 
WA_PIQCA_MODREG_DETAIL_STR-COBOK sy-vline 
WA_PIQCA_MODREG_DETAIL_STR-BOOKING_SUBGROUP_ID sy-vline 
WA_PIQCA_MODREG_DETAIL_STR-ATTNO_TW sy-vline 
WA_PIQCA_MODREG_DETAIL_STR-MODULE_SHORT sy-vline 
WA_PIQCA_MODREG_DETAIL_STR-MODULE_STEXT sy-vline 
WA_PIQCA_MODREG_DETAIL_STR-PERYT sy-vline 
WA_PIQCA_MODREG_DETAIL_STR-PERIT sy-vline 
WA_PIQCA_MODREG_DETAIL_STR-EVPACKAGET sy-vline 
WA_PIQCA_MODREG_DETAIL_STR-SMSTATUST sy-vline 
WA_PIQCA_MODREG_DETAIL_STR-BOOKREASONT sy-vline 
WA_PIQCA_MODREG_DETAIL_STR-STORREASONT sy-vline 
WA_PIQCA_MODREG_DETAIL_STR-SMRATINGT sy-vline 
WA_PIQCA_MODREG_DETAIL_STR-ANNULMENTT sy-vline 
WA_PIQCA_MODREG_DETAIL_STR-SCALE_TEXT sy-vline 
WA_PIQCA_MODREG_DETAIL_STR-CPUNIT_TEXT sy-vline 
WA_PIQCA_MODREG_DETAIL_STR-WAITLISTED sy-vline 
WA_PIQCA_MODREG_DETAIL_STR-WAITL_SIZE sy-vline 
WA_PIQCA_MODREG_DETAIL_STR-WAITL_POSITION sy-vline 
WA_PIQCA_MODREG_DETAIL_STR-WAITL_MOVEUP_ENTITLED sy-vline      INTO ld_text SEPARATED BY SPACE.

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