ABAP Select data from SAP table PIQCORR_STRU_CMS0_EXT_TR_H 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_CMS0_EXT_TR_H 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_CMS0_EXT_TR_H. 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_CMS0_EXT_TR_H 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_CMS0_EXT_TR_H TYPE STANDARD TABLE OF PIQCORR_STRU_CMS0_EXT_TR_H,
      WA_PIQCORR_STRU_CMS0_EXT_TR_H TYPE PIQCORR_STRU_CMS0_EXT_TR_H,
      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_CMS0_EXT_TR_H> TYPE PIQCORR_STRU_CMS0_EXT_TR_H.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PIQCORR_STRU_CMS0_EXT_TR_H.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PIQCORR_STRU_CMS0_EXT_TR_H
  INTO TABLE IT_PIQCORR_STRU_CMS0_EXT_TR_H.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PIQCORR_STRU_CMS0_EXT_TR_H
*  INTO TABLE @DATA(IT_PIQCORR_STRU_CMS0_EXT_TR_H2).
*--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_CMS0_EXT_TR_H INDEX 1 INTO DATA(WA_PIQCORR_STRU_CMS0_EXT_TR_H2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PIQCORR_STRU_CMS0_EXT_TR_H ASSIGNING <PIQCORR_STRU_CMS0_EXT_TR_H>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PIQCORR_STRU_CMS0_EXT_TR_H>-WA_EXT_TR_H = 1.
<PIQCORR_STRU_CMS0_EXT_TR_H>-TRANS_GUID = 1.
<PIQCORR_STRU_CMS0_EXT_TR_H>-ISSUEDATE = 1.
<PIQCORR_STRU_CMS0_EXT_TR_H>-TRANSTYPE = 1.
<PIQCORR_STRU_CMS0_EXT_TR_H>-ISSEO = 1.

ENDLOOP.

LOOP AT IT_PIQCORR_STRU_CMS0_EXT_TR_H INTO WA_PIQCORR_STRU_CMS0_EXT_TR_H.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PIQCORR_STRU_CMS0_EXT_TR_H-TRANSEO, sy-vline,
  WA_PIQCORR_STRU_CMS0_EXT_TR_H-TRSTATUS, sy-vline,
  WA_PIQCORR_STRU_CMS0_EXT_TR_H-REGPERIODFROM, sy-vline,
  WA_PIQCORR_STRU_CMS0_EXT_TR_H-REGPERIODTO, sy-vline,
  WA_PIQCORR_STRU_CMS0_EXT_TR_H-RANKING, sy-vline,
  WA_PIQCORR_STRU_CMS0_EXT_TR_H-SIZEOFCLASS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PIQCORR_STRU_CMS0_EXT_TR_H 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_CMS0_EXT_TR_H 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_CMS0_EXT_TR_H INTO WA_PIQCORR_STRU_CMS0_EXT_TR_H.


*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 TOTEXTCREDTYPE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PIQCORR_STRU_CMS0_EXT_TR_H-TOTEXTCREDTYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PIQCORR_STRU_CMS0_EXT_TR_H-TOTEXTCREDTYPE.
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_CMS0_EXT_TR_H_STR, 
WA_EXT_TR_H TYPE STRING,
TRANS_GUID TYPE STRING,
ISSUEDATE TYPE STRING,
TRANSTYPE TYPE STRING,
ISSEO TYPE STRING,
TRANSEO TYPE STRING,
TRSTATUS TYPE STRING,
REGPERIODFROM TYPE STRING,
REGPERIODTO TYPE STRING,
RANKING TYPE STRING,
SIZEOFCLASS TYPE STRING,
RETURNINDIC TYPE STRING,
RETURNDATE TYPE STRING,
TOTSELFGPA TYPE STRING,
TOTSELFGPASCALE TYPE STRING,
TOTEXTGPA1 TYPE STRING,
TOTEXTGPA1SCALE TYPE STRING,
TOTEXTGPA2 TYPE STRING,
TOTEXTGPA2SCALE TYPE STRING,
TOTEXTGPA3 TYPE STRING,
TOTEXTGPA3SCALE TYPE STRING,
TOTEXTATMCRED TYPE STRING,
TOTEXTGRDCRED TYPE STRING,
TOTEXTERNCRED TYPE STRING,
TOTEXTCREDTYPE TYPE STRING,
WA_EXT_TR_HT TYPE STRING,
TRANSTYPET TYPE STRING,
ISSEO_SHORT TYPE STRING,
ISSEO_STEXT TYPE STRING,
TRANSEO_SHORT TYPE STRING,
TRANSEO_STEXT TYPE STRING,
TRSTATUST TYPE STRING,
TOTSELFGPAT TYPE STRING,
TOTSELFGPASCALET TYPE STRING,
TOTEXTGPA1T TYPE STRING,
TOTEXTGPA1SCALET TYPE STRING,
TOTEXTGPA2T TYPE STRING,
TOTEXTGPA2SCALET TYPE STRING,
TOTEXTGPA3T TYPE STRING,
TOTEXTGPA3SCALET TYPE STRING,
TOTEXTCREDTYPET TYPE STRING,
T_COURSE TYPE STRING,
T_DEG TYPE STRING,
T_SPEC TYPE STRING,
T_SESSION TYPE STRING,
T_CODNOTE TYPE STRING,
T_FREETEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PIQCORR_STRU_CMS0_EXT_TR_H_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_CMS0_EXT_TR_H_STR-WA_EXT_TR_H sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-TRANS_GUID sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-ISSUEDATE sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-TRANSTYPE sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-ISSEO sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-TRANSEO sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-TRSTATUS sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-REGPERIODFROM sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-REGPERIODTO sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-RANKING sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-SIZEOFCLASS sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-RETURNINDIC sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-RETURNDATE sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-TOTSELFGPA sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-TOTSELFGPASCALE sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-TOTEXTGPA1 sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-TOTEXTGPA1SCALE sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-TOTEXTGPA2 sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-TOTEXTGPA2SCALE sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-TOTEXTGPA3 sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-TOTEXTGPA3SCALE sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-TOTEXTATMCRED sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-TOTEXTGRDCRED sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-TOTEXTERNCRED sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-TOTEXTCREDTYPE sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-WA_EXT_TR_HT sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-TRANSTYPET sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-ISSEO_SHORT sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-ISSEO_STEXT sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-TRANSEO_SHORT sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-TRANSEO_STEXT sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-TRSTATUST sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-TOTSELFGPAT sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-TOTSELFGPASCALET sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-TOTEXTGPA1T sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-TOTEXTGPA1SCALET sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-TOTEXTGPA2T sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-TOTEXTGPA2SCALET sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-TOTEXTGPA3T sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-TOTEXTGPA3SCALET sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-TOTEXTCREDTYPET sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-T_COURSE sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-T_DEG sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-T_SPEC sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-T_SESSION sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-T_CODNOTE sy-vline 
WA_PIQCORR_STRU_CMS0_EXT_TR_H_STR-T_FREETEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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