ABAP Select data from SAP table PIQROOM_EQUIPMENT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PIQROOM_EQUIPMENT
*  INTO TABLE @DATA(IT_PIQROOM_EQUIPMENT2).
*--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_PIQROOM_EQUIPMENT INDEX 1 INTO DATA(WA_PIQROOM_EQUIPMENT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PIQROOM_EQUIPMENT>-PLVAR = 1.
<PIQROOM_EQUIPMENT>-OTYPE = 1.
<PIQROOM_EQUIPMENT>-OBJID = 1.
<PIQROOM_EQUIPMENT>-ISTAT = 1.
<PIQROOM_EQUIPMENT>-SHORT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PIQROOM_EQUIPMENT-STEXT, sy-vline,
  WA_PIQROOM_EQUIPMENT-BEGDA, sy-vline,
  WA_PIQROOM_EQUIPMENT-ENDDA, sy-vline,
  WA_PIQROOM_EQUIPMENT-RETYP, sy-vline,
  WA_PIQROOM_EQUIPMENT-RESID, sy-vline,
  WA_PIQROOM_EQUIPMENT-RESHT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PIQROOM_EQUIPMENT 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_PIQROOM_EQUIPMENT 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_PIQROOM_EQUIPMENT INTO WA_PIQROOM_EQUIPMENT.


*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_PIQROOM_EQUIPMENT_STR, 
PLVAR TYPE STRING,
OTYPE TYPE STRING,
OBJID TYPE STRING,
ISTAT TYPE STRING,
SHORT TYPE STRING,
STEXT TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
RETYP TYPE STRING,
RESID TYPE STRING,
RESHT TYPE STRING,
RETXT TYPE STRING,
REBEG TYPE STRING,
REEND TYPE STRING,
MANZL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PIQROOM_EQUIPMENT_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_PIQROOM_EQUIPMENT_STR-PLVAR sy-vline 
WA_PIQROOM_EQUIPMENT_STR-OTYPE sy-vline 
WA_PIQROOM_EQUIPMENT_STR-OBJID sy-vline 
WA_PIQROOM_EQUIPMENT_STR-ISTAT sy-vline 
WA_PIQROOM_EQUIPMENT_STR-SHORT sy-vline 
WA_PIQROOM_EQUIPMENT_STR-STEXT sy-vline 
WA_PIQROOM_EQUIPMENT_STR-BEGDA sy-vline 
WA_PIQROOM_EQUIPMENT_STR-ENDDA sy-vline 
WA_PIQROOM_EQUIPMENT_STR-RETYP sy-vline 
WA_PIQROOM_EQUIPMENT_STR-RESID sy-vline 
WA_PIQROOM_EQUIPMENT_STR-RESHT sy-vline 
WA_PIQROOM_EQUIPMENT_STR-RETXT sy-vline 
WA_PIQROOM_EQUIPMENT_STR-REBEG sy-vline 
WA_PIQROOM_EQUIPMENT_STR-REEND sy-vline 
WA_PIQROOM_EQUIPMENT_STR-MANZL sy-vline      INTO ld_text SEPARATED BY SPACE.

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