ABAP Select data from SAP table PIQAUDS_DLG into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PIQAUDS_DLG
*  INTO TABLE @DATA(IT_PIQAUDS_DLG2).
*--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_PIQAUDS_DLG INDEX 1 INTO DATA(WA_PIQAUDS_DLG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PIQAUDS_DLG>-RULEMODULE = 1.
<PIQAUDS_DLG>-RULETYPE = 1.
<PIQAUDS_DLG>-RULECATEGORY = 1.
<PIQAUDS_DLG>-PRIO = 1.
<PIQAUDS_DLG>-RULETYPE_WI = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PIQAUDS_DLG-RULETYPE_WOI, sy-vline,
  WA_PIQAUDS_DLG-RULEMODULET, sy-vline,
  WA_PIQAUDS_DLG-COND, sy-vline,
  WA_PIQAUDS_DLG-PARAM, sy-vline,
  WA_PIQAUDS_DLG-SEQNR, sy-vline,
  WA_PIQAUDS_DLG-PARAM_VALUE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PIQAUDS_DLG 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_PIQAUDS_DLG 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_PIQAUDS_DLG INTO WA_PIQAUDS_DLG.


*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 UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PIQAUDS_DLG-UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PIQAUDS_DLG-UNIT.
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_PIQAUDS_DLG_STR, 
RULEMODULE TYPE STRING,
RULETYPE TYPE STRING,
RULECATEGORY TYPE STRING,
PRIO TYPE STRING,
RULETYPE_WI TYPE STRING,
RULETYPE_WOI TYPE STRING,
RULEMODULET TYPE STRING,
COND TYPE STRING,
PARAM TYPE STRING,
SEQNR TYPE STRING,
PARAM_VALUE TYPE STRING,
OPERAND TYPE STRING,
VALUE TYPE STRING,
UNIT TYPE STRING,
GRADESYM TYPE STRING,
SCALEID TYPE STRING,
SELMETH TYPE STRING,
SELVAR TYPE STRING,
FILTER TYPE STRING,
RMTYPET TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PIQAUDS_DLG_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_PIQAUDS_DLG_STR-RULEMODULE sy-vline 
WA_PIQAUDS_DLG_STR-RULETYPE sy-vline 
WA_PIQAUDS_DLG_STR-RULECATEGORY sy-vline 
WA_PIQAUDS_DLG_STR-PRIO sy-vline 
WA_PIQAUDS_DLG_STR-RULETYPE_WI sy-vline 
WA_PIQAUDS_DLG_STR-RULETYPE_WOI sy-vline 
WA_PIQAUDS_DLG_STR-RULEMODULET sy-vline 
WA_PIQAUDS_DLG_STR-COND sy-vline 
WA_PIQAUDS_DLG_STR-PARAM sy-vline 
WA_PIQAUDS_DLG_STR-SEQNR sy-vline 
WA_PIQAUDS_DLG_STR-PARAM_VALUE sy-vline 
WA_PIQAUDS_DLG_STR-OPERAND sy-vline 
WA_PIQAUDS_DLG_STR-VALUE sy-vline 
WA_PIQAUDS_DLG_STR-UNIT sy-vline 
WA_PIQAUDS_DLG_STR-GRADESYM sy-vline 
WA_PIQAUDS_DLG_STR-SCALEID sy-vline 
WA_PIQAUDS_DLG_STR-SELMETH sy-vline 
WA_PIQAUDS_DLG_STR-SELVAR sy-vline 
WA_PIQAUDS_DLG_STR-FILTER sy-vline 
WA_PIQAUDS_DLG_STR-RMTYPET sy-vline      INTO ld_text SEPARATED BY SPACE.

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