ABAP Select data from SAP table PIQEDS_INT_W_TAB into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PIQEDS_INT_W_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 PIQEDS_INT_W_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 PIQEDS_INT_W_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_PIQEDS_INT_W_TAB TYPE STANDARD TABLE OF PIQEDS_INT_W_TAB,
      WA_PIQEDS_INT_W_TAB TYPE PIQEDS_INT_W_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: <PIQEDS_INT_W_TAB> TYPE PIQEDS_INT_W_TAB.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PIQEDS_INT_W_TAB
*  INTO TABLE @DATA(IT_PIQEDS_INT_W_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_PIQEDS_INT_W_TAB INDEX 1 INTO DATA(WA_PIQEDS_INT_W_TAB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PIQEDS_INT_W_TAB>-PROCS_ED_INT_W = 1.
<PIQEDS_INT_W_TAB>-OTYPE = 1.
<PIQEDS_INT_W_TAB>-OBJID = 1.
<PIQEDS_INT_W_TAB>-GRADESYM = 1.
<PIQEDS_INT_W_TAB>-GRADE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PIQEDS_INT_W_TAB-GRADESCALE, sy-vline,
  WA_PIQEDS_INT_W_TAB-CPATTEMP, sy-vline,
  WA_PIQEDS_INT_W_TAB-CPEARNED, sy-vline,
  WA_PIQEDS_INT_W_TAB-CPGRADED, sy-vline,
  WA_PIQEDS_INT_W_TAB-CPUNIT, sy-vline,
  WA_PIQEDS_INT_W_TAB-PROGC_VAR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PIQEDS_INT_W_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_PIQEDS_INT_W_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_PIQEDS_INT_W_TAB INTO WA_PIQEDS_INT_W_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.

*Conversion exit CUNIT, internal->external for field CPUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PIQEDS_INT_W_TAB-CPUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PIQEDS_INT_W_TAB-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_PIQEDS_INT_W_TAB_STR, 
PROCS_ED_INT_W TYPE STRING,
OTYPE TYPE STRING,
OBJID TYPE STRING,
GRADESYM TYPE STRING,
GRADE TYPE STRING,
GRADESCALE TYPE STRING,
CPATTEMP TYPE STRING,
CPEARNED TYPE STRING,
CPGRADED TYPE STRING,
CPUNIT TYPE STRING,
PROGC_VAR TYPE STRING,
SC_OBJID TYPE STRING,
TRANSFERBOOKID TYPE STRING,
AWSTATUS TYPE STRING,
PERYR TYPE STRING,
PERID TYPE STRING,
AGRBEGDA TYPE STRING,
AGRENDDA TYPE STRING,
ATTNO_TW TYPE STRING,
AGRTYPE TYPE STRING,
AGRSTAT TYPE STRING,
AGRREMARK TYPE STRING,
OBJTYPE TYPE STRING,
REALO TYPE STRING,
APPSERTEXT TYPE STRING,
BOOKREASON TYPE STRING,
WITHCREDITS TYPE STRING,
WITHGRADE TYPE STRING,
WITHGRADEDCR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PIQEDS_INT_W_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_PIQEDS_INT_W_TAB_STR-PROCS_ED_INT_W sy-vline 
WA_PIQEDS_INT_W_TAB_STR-OTYPE sy-vline 
WA_PIQEDS_INT_W_TAB_STR-OBJID sy-vline 
WA_PIQEDS_INT_W_TAB_STR-GRADESYM sy-vline 
WA_PIQEDS_INT_W_TAB_STR-GRADE sy-vline 
WA_PIQEDS_INT_W_TAB_STR-GRADESCALE sy-vline 
WA_PIQEDS_INT_W_TAB_STR-CPATTEMP sy-vline 
WA_PIQEDS_INT_W_TAB_STR-CPEARNED sy-vline 
WA_PIQEDS_INT_W_TAB_STR-CPGRADED sy-vline 
WA_PIQEDS_INT_W_TAB_STR-CPUNIT sy-vline 
WA_PIQEDS_INT_W_TAB_STR-PROGC_VAR sy-vline 
WA_PIQEDS_INT_W_TAB_STR-SC_OBJID sy-vline 
WA_PIQEDS_INT_W_TAB_STR-TRANSFERBOOKID sy-vline 
WA_PIQEDS_INT_W_TAB_STR-AWSTATUS sy-vline 
WA_PIQEDS_INT_W_TAB_STR-PERYR sy-vline 
WA_PIQEDS_INT_W_TAB_STR-PERID sy-vline 
WA_PIQEDS_INT_W_TAB_STR-AGRBEGDA sy-vline 
WA_PIQEDS_INT_W_TAB_STR-AGRENDDA sy-vline 
WA_PIQEDS_INT_W_TAB_STR-ATTNO_TW sy-vline 
WA_PIQEDS_INT_W_TAB_STR-AGRTYPE sy-vline 
WA_PIQEDS_INT_W_TAB_STR-AGRSTAT sy-vline 
WA_PIQEDS_INT_W_TAB_STR-AGRREMARK sy-vline 
WA_PIQEDS_INT_W_TAB_STR-OBJTYPE sy-vline 
WA_PIQEDS_INT_W_TAB_STR-REALO sy-vline 
WA_PIQEDS_INT_W_TAB_STR-APPSERTEXT sy-vline 
WA_PIQEDS_INT_W_TAB_STR-BOOKREASON sy-vline 
WA_PIQEDS_INT_W_TAB_STR-WITHCREDITS sy-vline 
WA_PIQEDS_INT_W_TAB_STR-WITHGRADE sy-vline 
WA_PIQEDS_INT_W_TAB_STR-WITHGRADEDCR sy-vline      INTO ld_text SEPARATED BY SPACE.

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