ABAP Select data from SAP table PIQBW_PCP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PIQBW_PCP
*  INTO TABLE @DATA(IT_PIQBW_PCP2).
*--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_PIQBW_PCP INDEX 1 INTO DATA(WA_PIQBW_PCP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PIQBW_PCP>-CQGUID = 1.
<PIQBW_PCP>-CQ_OBJECTID = 1.
<PIQBW_PCP>-BPARTNER = 1.
<PIQBW_PCP>-STUDNR = 1.
<PIQBW_PCP>-PROGRAM_OBJECTID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PIQBW_PCP-STUDY_OBJECTID, sy-vline,
  WA_PIQBW_PCP-ACAD_YEARPERID, sy-vline,
  WA_PIQBW_PCP-STATUS, sy-vline,
  WA_PIQBW_PCP-REGDATE, sy-vline,
  WA_PIQBW_PCP-REASON, sy-vline,
  WA_PIQBW_PCP-CRMNY_DATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PIQBW_PCP 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_PIQBW_PCP 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_PIQBW_PCP INTO WA_PIQBW_PCP.


*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 ALPHA, internal->external for field BPARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PIQBW_PCP-BPARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PIQBW_PCP-BPARTNER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PIQST, internal->external for field STUDNR
CALL FUNCTION 'CONVERSION_EXIT_PIQST_OUTPUT'
  EXPORTING
    input =                      WA_PIQBW_PCP-STUDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PIQBW_PCP-STUDNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field FINALW_LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_PIQBW_PCP-FINALW_LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PIQBW_PCP-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_PIQBW_PCP-FINALW_LANGUALT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PIQBW_PCP-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_PIQBW_PCP_STR, 
CQGUID TYPE STRING,
CQ_OBJECTID TYPE STRING,
BPARTNER TYPE STRING,
STUDNR TYPE STRING,
PROGRAM_OBJECTID TYPE STRING,
STUDY_OBJECTID TYPE STRING,
ACAD_YEARPERID TYPE STRING,
STATUS TYPE STRING,
REGDATE TYPE STRING,
REASON TYPE STRING,
CRMNY_DATE TYPE STRING,
CRMNY_LOCATION TYPE STRING,
CRMNY_BUILDING TYPE STRING,
CRMNY_ROOM TYPE STRING,
CRMNY_BEGTIME TYPE STRING,
CRMNY_ENDTIME TYPE STRING,
CRMNY_SEATNO TYPE STRING,
CRMNY_CATEGORY TYPE STRING,
GRADE TYPE STRING,
GRADESYM TYPE STRING,
GRADESCALE TYPE STRING,
CONF_COMMENT TYPE STRING,
CONFER_DATE TYPE STRING,
VALID_FROM TYPE STRING,
VALID_TO TYPE STRING,
TRANSFERFLAG TYPE STRING,
PERIDFORCQ TYPE STRING,
PERIDFORCQUNIT TYPE STRING,
ACADHONOR_SYM TYPE STRING,
ACADHONOR_GRADE TYPE STRING,
ACADHONOR_SCALE TYPE STRING,
DIPLOMANAME TYPE STRING,
FINALW_TITLE TYPE STRING,
FINALW_LANGU TYPE STRING,
FINALW_TITLEALT TYPE STRING,
FINALW_LANGUALT TYPE STRING,
RECORDMODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PIQBW_PCP_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_PIQBW_PCP_STR-CQGUID sy-vline 
WA_PIQBW_PCP_STR-CQ_OBJECTID sy-vline 
WA_PIQBW_PCP_STR-BPARTNER sy-vline 
WA_PIQBW_PCP_STR-STUDNR sy-vline 
WA_PIQBW_PCP_STR-PROGRAM_OBJECTID sy-vline 
WA_PIQBW_PCP_STR-STUDY_OBJECTID sy-vline 
WA_PIQBW_PCP_STR-ACAD_YEARPERID sy-vline 
WA_PIQBW_PCP_STR-STATUS sy-vline 
WA_PIQBW_PCP_STR-REGDATE sy-vline 
WA_PIQBW_PCP_STR-REASON sy-vline 
WA_PIQBW_PCP_STR-CRMNY_DATE sy-vline 
WA_PIQBW_PCP_STR-CRMNY_LOCATION sy-vline 
WA_PIQBW_PCP_STR-CRMNY_BUILDING sy-vline 
WA_PIQBW_PCP_STR-CRMNY_ROOM sy-vline 
WA_PIQBW_PCP_STR-CRMNY_BEGTIME sy-vline 
WA_PIQBW_PCP_STR-CRMNY_ENDTIME sy-vline 
WA_PIQBW_PCP_STR-CRMNY_SEATNO sy-vline 
WA_PIQBW_PCP_STR-CRMNY_CATEGORY sy-vline 
WA_PIQBW_PCP_STR-GRADE sy-vline 
WA_PIQBW_PCP_STR-GRADESYM sy-vline 
WA_PIQBW_PCP_STR-GRADESCALE sy-vline 
WA_PIQBW_PCP_STR-CONF_COMMENT sy-vline 
WA_PIQBW_PCP_STR-CONFER_DATE sy-vline 
WA_PIQBW_PCP_STR-VALID_FROM sy-vline 
WA_PIQBW_PCP_STR-VALID_TO sy-vline 
WA_PIQBW_PCP_STR-TRANSFERFLAG sy-vline 
WA_PIQBW_PCP_STR-PERIDFORCQ sy-vline 
WA_PIQBW_PCP_STR-PERIDFORCQUNIT sy-vline 
WA_PIQBW_PCP_STR-ACADHONOR_SYM sy-vline 
WA_PIQBW_PCP_STR-ACADHONOR_GRADE sy-vline 
WA_PIQBW_PCP_STR-ACADHONOR_SCALE sy-vline 
WA_PIQBW_PCP_STR-DIPLOMANAME sy-vline 
WA_PIQBW_PCP_STR-FINALW_TITLE sy-vline 
WA_PIQBW_PCP_STR-FINALW_LANGU sy-vline 
WA_PIQBW_PCP_STR-FINALW_TITLEALT sy-vline 
WA_PIQBW_PCP_STR-FINALW_LANGUALT sy-vline 
WA_PIQBW_PCP_STR-RECORDMODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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