ABAP Select data from SAP table PIQAUD_STCATALOG into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PIQAUD_STCATALOG
*  INTO TABLE @DATA(IT_PIQAUD_STCATALOG2).
*--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_PIQAUD_STCATALOG INDEX 1 INTO DATA(WA_PIQAUD_STCATALOG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PIQAUD_STCATALOG>-PLVAR = 1.
<PIQAUD_STCATALOG>-OTYPE = 1.
<PIQAUD_STCATALOG>-OBJID = 1.
<PIQAUD_STCATALOG>-AUDITTYPE = 1.
<PIQAUD_STCATALOG>-AUDITTYPET = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PIQAUD_STCATALOG-CATTYPE, sy-vline,
  WA_PIQAUD_STCATALOG-RLCAT, sy-vline,
  WA_PIQAUD_STCATALOG-RLCATT, sy-vline,
  WA_PIQAUD_STCATALOG-RLCATVERS, sy-vline,
  WA_PIQAUD_STCATALOG-RLCATVERST, sy-vline,
  WA_PIQAUD_STCATALOG-MAIN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PIQAUD_STCATALOG 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_PIQAUD_STCATALOG 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_PIQAUD_STCATALOG INTO WA_PIQAUD_STCATALOG.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_PIQAUD_STCATALOG_STR, 
PLVAR TYPE STRING,
OTYPE TYPE STRING,
OBJID TYPE STRING,
AUDITTYPE TYPE STRING,
AUDITTYPET TYPE STRING,
CATTYPE TYPE STRING,
RLCAT TYPE STRING,
RLCATT TYPE STRING,
RLCATVERS TYPE STRING,
RLCATVERST TYPE STRING,
MAIN TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PIQAUD_STCATALOG_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_PIQAUD_STCATALOG_STR-PLVAR sy-vline 
WA_PIQAUD_STCATALOG_STR-OTYPE sy-vline 
WA_PIQAUD_STCATALOG_STR-OBJID sy-vline 
WA_PIQAUD_STCATALOG_STR-AUDITTYPE sy-vline 
WA_PIQAUD_STCATALOG_STR-AUDITTYPET sy-vline 
WA_PIQAUD_STCATALOG_STR-CATTYPE sy-vline 
WA_PIQAUD_STCATALOG_STR-RLCAT sy-vline 
WA_PIQAUD_STCATALOG_STR-RLCATT sy-vline 
WA_PIQAUD_STCATALOG_STR-RLCATVERS sy-vline 
WA_PIQAUD_STCATALOG_STR-RLCATVERST sy-vline 
WA_PIQAUD_STCATALOG_STR-MAIN sy-vline 
WA_PIQAUD_STCATALOG_STR-BEGDA sy-vline 
WA_PIQAUD_STCATALOG_STR-ENDDA sy-vline      INTO ld_text SEPARATED BY SPACE.

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