ABAP Select data from SAP table PIQBW_ADM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PIQBW_ADM 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_ADM. 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_ADM 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_ADM TYPE STANDARD TABLE OF PIQBW_ADM,
      WA_PIQBW_ADM TYPE PIQBW_ADM,
      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_ADM> TYPE PIQBW_ADM.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PIQBW_ADM
*  INTO TABLE @DATA(IT_PIQBW_ADM2).
*--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_ADM INDEX 1 INTO DATA(WA_PIQBW_ADM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PIQBW_ADM>-PROGRAM_OBJECTID = 1.
<PIQBW_ADM>-BPARTNER = 1.
<PIQBW_ADM>-STUDNR = 1.
<PIQBW_ADM>-STUDY_OBJECTID = 1.
<PIQBW_ADM>-ADMIS_STATUS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PIQBW_ADM-ADMIS_STATUS_SUP, sy-vline,
  WA_PIQBW_ADM-PARTTIME, sy-vline,
  WA_PIQBW_ADM-REGIST_TYPE, sy-vline,
  WA_PIQBW_ADM-ADMIS_CATEGORY, sy-vline,
  WA_PIQBW_ADM-CMPL_LGNTH_STUDY, sy-vline,
  WA_PIQBW_ADM-CHOICE_NO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PIQBW_ADM 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_ADM 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_ADM INTO WA_PIQBW_ADM.


*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_ADM-BPARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PIQBW_ADM-BPARTNER.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field NOTIFIC_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PIQBW_ADM-NOTIFIC_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PIQBW_ADM-NOTIFIC_NO.
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_ADM_STR, 
PROGRAM_OBJECTID TYPE STRING,
BPARTNER TYPE STRING,
STUDNR TYPE STRING,
STUDY_OBJECTID TYPE STRING,
ADMIS_STATUS TYPE STRING,
ADMIS_STATUS_SUP TYPE STRING,
PARTTIME TYPE STRING,
REGIST_TYPE TYPE STRING,
ADMIS_CATEGORY TYPE STRING,
CMPL_LGNTH_STUDY TYPE STRING,
CHOICE_NO TYPE STRING,
ADMIS_CODE TYPE STRING,
SEQNR TYPE STRING,
STAGE TYPE STRING,
ACAD_YEARPERID TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
RECPT_DATE TYPE STRING,
DEC_DATE TYPE STRING,
WITH_DECL_DATE TYPE STRING,
NOTIFIC_NO TYPE STRING,
RECORDMODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PIQBW_ADM_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_ADM_STR-PROGRAM_OBJECTID sy-vline 
WA_PIQBW_ADM_STR-BPARTNER sy-vline 
WA_PIQBW_ADM_STR-STUDNR sy-vline 
WA_PIQBW_ADM_STR-STUDY_OBJECTID sy-vline 
WA_PIQBW_ADM_STR-ADMIS_STATUS sy-vline 
WA_PIQBW_ADM_STR-ADMIS_STATUS_SUP sy-vline 
WA_PIQBW_ADM_STR-PARTTIME sy-vline 
WA_PIQBW_ADM_STR-REGIST_TYPE sy-vline 
WA_PIQBW_ADM_STR-ADMIS_CATEGORY sy-vline 
WA_PIQBW_ADM_STR-CMPL_LGNTH_STUDY sy-vline 
WA_PIQBW_ADM_STR-CHOICE_NO sy-vline 
WA_PIQBW_ADM_STR-ADMIS_CODE sy-vline 
WA_PIQBW_ADM_STR-SEQNR sy-vline 
WA_PIQBW_ADM_STR-STAGE sy-vline 
WA_PIQBW_ADM_STR-ACAD_YEARPERID sy-vline 
WA_PIQBW_ADM_STR-BEGDA sy-vline 
WA_PIQBW_ADM_STR-ENDDA sy-vline 
WA_PIQBW_ADM_STR-RECPT_DATE sy-vline 
WA_PIQBW_ADM_STR-DEC_DATE sy-vline 
WA_PIQBW_ADM_STR-WITH_DECL_DATE sy-vline 
WA_PIQBW_ADM_STR-NOTIFIC_NO sy-vline 
WA_PIQBW_ADM_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.