ABAP Select data from SAP table LSO_RHCCOS001 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP LSO_RHCCOS001 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 LSO_RHCCOS001. 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 LSO_RHCCOS001 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_LSO_RHCCOS001 TYPE STANDARD TABLE OF LSO_RHCCOS001,
      WA_LSO_RHCCOS001 TYPE LSO_RHCCOS001,
      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: <LSO_RHCCOS001> TYPE LSO_RHCCOS001.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_LSO_RHCCOS001.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM LSO_RHCCOS001
  INTO TABLE IT_LSO_RHCCOS001.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM LSO_RHCCOS001
*  INTO TABLE @DATA(IT_LSO_RHCCOS0012).
*--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_LSO_RHCCOS001 INDEX 1 INTO DATA(WA_LSO_RHCCOS0012).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_LSO_RHCCOS001 ASSIGNING <LSO_RHCCOS001>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<LSO_RHCCOS001>-INSTX = 1.
<LSO_RHCCOS001>-INSTY = 1.
<LSO_RHCCOS001>-INSID = 1.
<LSO_RHCCOS001>-EVETX = 1.
<LSO_RHCCOS001>-EVESH = 1.

ENDLOOP.

LOOP AT IT_LSO_RHCCOS001 INTO WA_LSO_RHCCOS001.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_LSO_RHCCOS001-EOTYP, sy-vline,
  WA_LSO_RHCCOS001-EVEID, sy-vline,
  WA_LSO_RHCCOS001-BEGDA, sy-vline,
  WA_LSO_RHCCOS001-ENDDA, sy-vline,
  WA_LSO_RHCCOS001-PATYP, sy-vline,
  WA_LSO_RHCCOS001-PARID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_LSO_RHCCOS001 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_LSO_RHCCOS001 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_LSO_RHCCOS001 INTO WA_LSO_RHCCOS001.


*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_LSO_RHCCOS001_STR, 
INSTX TYPE STRING,
INSTY TYPE STRING,
INSID TYPE STRING,
EVETX TYPE STRING,
EVESH TYPE STRING,
EOTYP TYPE STRING,
EVEID TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
PATYP TYPE STRING,
PARID TYPE STRING,
PARSH TYPE STRING,
PARTX TYPE STRING,
ORGTY TYPE STRING,
ORGID TYPE STRING,
ORGSH TYPE STRING,
OTGTX TYPE STRING,
KOBES TYPE STRING,
OTYPE TYPE STRING,
OBJID TYPE STRING,
RESSH TYPE STRING,
MSGTY TYPE STRING,
ID TYPE STRING,
NUMBE TYPE STRING,
TEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_LSO_RHCCOS001_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_LSO_RHCCOS001_STR-INSTX sy-vline 
WA_LSO_RHCCOS001_STR-INSTY sy-vline 
WA_LSO_RHCCOS001_STR-INSID sy-vline 
WA_LSO_RHCCOS001_STR-EVETX sy-vline 
WA_LSO_RHCCOS001_STR-EVESH sy-vline 
WA_LSO_RHCCOS001_STR-EOTYP sy-vline 
WA_LSO_RHCCOS001_STR-EVEID sy-vline 
WA_LSO_RHCCOS001_STR-BEGDA sy-vline 
WA_LSO_RHCCOS001_STR-ENDDA sy-vline 
WA_LSO_RHCCOS001_STR-PATYP sy-vline 
WA_LSO_RHCCOS001_STR-PARID sy-vline 
WA_LSO_RHCCOS001_STR-PARSH sy-vline 
WA_LSO_RHCCOS001_STR-PARTX sy-vline 
WA_LSO_RHCCOS001_STR-ORGTY sy-vline 
WA_LSO_RHCCOS001_STR-ORGID sy-vline 
WA_LSO_RHCCOS001_STR-ORGSH sy-vline 
WA_LSO_RHCCOS001_STR-OTGTX sy-vline 
WA_LSO_RHCCOS001_STR-KOBES sy-vline 
WA_LSO_RHCCOS001_STR-OTYPE sy-vline 
WA_LSO_RHCCOS001_STR-OBJID sy-vline 
WA_LSO_RHCCOS001_STR-RESSH sy-vline 
WA_LSO_RHCCOS001_STR-MSGTY sy-vline 
WA_LSO_RHCCOS001_STR-ID sy-vline 
WA_LSO_RHCCOS001_STR-NUMBE sy-vline 
WA_LSO_RHCCOS001_STR-TEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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