ABAP Select data from SAP table /PLMB/S_RCP_SEA_CRIT_MCLASS_UI into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /PLMB/S_RCP_SEA_CRIT_MCLASS_UI 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 /PLMB/S_RCP_SEA_CRIT_MCLASS_UI. 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 /PLMB/S_RCP_SEA_CRIT_MCLASS_UI 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_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI TYPE STANDARD TABLE OF /PLMB/S_RCP_SEA_CRIT_MCLASS_UI,
      WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI TYPE /PLMB/S_RCP_SEA_CRIT_MCLASS_UI,
      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: </PLMB/S_RCP_SEA_CRIT_MCLASS_UI> TYPE /PLMB/S_RCP_SEA_CRIT_MCLASS_UI.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /PLMB/S_RCP_SEA_CRIT_MCLASS_UI
  INTO TABLE IT_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /PLMB/S_RCP_SEA_CRIT_MCLASS_UI
*  INTO TABLE @DATA(IT_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI2).
*--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_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI INDEX 1 INTO DATA(WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI ASSIGNING </PLMB/S_RCP_SEA_CRIT_MCLASS_UI>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</PLMB/S_RCP_SEA_CRIT_MCLASS_UI>-QUERY_ID = 1.
</PLMB/S_RCP_SEA_CRIT_MCLASS_UI>-OBJECT_TYPE = 1.
</PLMB/S_RCP_SEA_CRIT_MCLASS_UI>-SEGMENT = 1.
</PLMB/S_RCP_SEA_CRIT_MCLASS_UI>-ROW_INDEX = 1.
</PLMB/S_RCP_SEA_CRIT_MCLASS_UI>-CLASS_TYPE = 1.

ENDLOOP.

LOOP AT IT_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI INTO WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI-CLASS, sy-vline,
  WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI-CLASS_TXT, sy-vline,
  WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI-CHARACT, sy-vline,
  WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI-CHARACT_TXT, sy-vline,
  WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI-ATINN, sy-vline,
  WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI-DATA_TYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI 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_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI 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_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI INTO WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI.


*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 ATINN, internal->external for field ATINN
CALL FUNCTION 'CONVERSION_EXIT_ATINN_OUTPUT'
  EXPORTING
    input =                      WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI-ATINN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI-ATINN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ATINN, internal->external for field ATINN_2
CALL FUNCTION 'CONVERSION_EXIT_ATINN_OUTPUT'
  EXPORTING
    input =                      WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI-ATINN_2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI-ATINN_2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ATINN, internal->external for field ATINN_3
CALL FUNCTION 'CONVERSION_EXIT_ATINN_OUTPUT'
  EXPORTING
    input =                      WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI-ATINN_3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI-ATINN_3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ATINN, internal->external for field ATINN_4
CALL FUNCTION 'CONVERSION_EXIT_ATINN_OUTPUT'
  EXPORTING
    input =                      WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI-ATINN_4
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI-ATINN_4.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ATINN, internal->external for field ATINN_5
CALL FUNCTION 'CONVERSION_EXIT_ATINN_OUTPUT'
  EXPORTING
    input =                      WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI-ATINN_5
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI-ATINN_5.
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_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR, 
QUERY_ID TYPE STRING,
OBJECT_TYPE TYPE STRING,
SEGMENT TYPE STRING,
ROW_INDEX TYPE STRING,
CLASS_TYPE TYPE STRING,
CLASS TYPE STRING,
CLASS_TXT TYPE STRING,
CHARACT TYPE STRING,
CHARACT_TXT TYPE STRING,
ATINN TYPE STRING,
DATA_TYPE TYPE STRING,
VALUE_NUM_LOWER TYPE STRING,
VALUE_NUM_HIGHER TYPE STRING,
UNITOFMEASURE TYPE STRING,
UNITOFMEASURE_TXT TYPE STRING,
VALUE_STRING TYPE STRING,
VALUE_STRING_TXT TYPE STRING,
CLASS_2 TYPE STRING,
CLASS_TXT_2 TYPE STRING,
CHARACT_2 TYPE STRING,
CHARACT_TXT_2 TYPE STRING,
ATINN_2 TYPE STRING,
DATA_TYPE_2 TYPE STRING,
VALUE_NUM_LOWER_2 TYPE STRING,
VALUE_NUM_HIGHER_2 TYPE STRING,
UNITOFMEASURE_2 TYPE STRING,
UNITOFMEASURE_TXT_2 TYPE STRING,
VALUE_STRING_2 TYPE STRING,
VALUE_STRING_TXT_2 TYPE STRING,
CLASS_3 TYPE STRING,
CLASS_TXT_3 TYPE STRING,
CHARACT_3 TYPE STRING,
CHARACT_TXT_3 TYPE STRING,
ATINN_3 TYPE STRING,
DATA_TYPE_3 TYPE STRING,
VALUE_NUM_LOWER_3 TYPE STRING,
VALUE_NUM_HIGHER_3 TYPE STRING,
UNITOFMEASURE_3 TYPE STRING,
UNITOFMEASURE_TXT_3 TYPE STRING,
VALUE_STRING_3 TYPE STRING,
VALUE_STRING_TXT_3 TYPE STRING,
CLASS_4 TYPE STRING,
CLASS_TXT_4 TYPE STRING,
CHARACT_4 TYPE STRING,
CHARACT_TXT_4 TYPE STRING,
ATINN_4 TYPE STRING,
DATA_TYPE_4 TYPE STRING,
VALUE_NUM_LOWER_4 TYPE STRING,
VALUE_NUM_HIGHER_4 TYPE STRING,
UNITOFMEASURE_4 TYPE STRING,
UNITOFMEASURE_TXT_4 TYPE STRING,
VALUE_STRING_4 TYPE STRING,
VALUE_STRING_TXT_4 TYPE STRING,
CLASS_5 TYPE STRING,
CLASS_TXT_5 TYPE STRING,
CHARACT_5 TYPE STRING,
CHARACT_TXT_5 TYPE STRING,
ATINN_5 TYPE STRING,
DATA_TYPE_5 TYPE STRING,
VALUE_NUM_LOWER_5 TYPE STRING,
VALUE_NUM_HIGHER_5 TYPE STRING,
UNITOFMEASURE_5 TYPE STRING,
UNITOFMEASURE_TXT_5 TYPE STRING,
VALUE_STRING_5 TYPE STRING,
VALUE_STRING_TXT_5 TYPE STRING,
AND_OR TYPE STRING,
PO_CHECKED TYPE STRING,
PS_CHECKED TYPE STRING,
SO_CHECKED TYPE STRING,
OS_CHECKED TYPE STRING,
VALUE_CHAR_LOWER TYPE STRING,
VALUE_CHAR_HIGHER TYPE STRING,
VALUE_CHAR_LOWER_2 TYPE STRING,
VALUE_CHAR_HIGHER_2 TYPE STRING,
VALUE_CHAR_LOWER_3 TYPE STRING,
VALUE_CHAR_HIGHER_3 TYPE STRING,
VALUE_CHAR_LOWER_4 TYPE STRING,
VALUE_CHAR_HIGHER_4 TYPE STRING,
VALUE_CHAR_LOWER_5 TYPE STRING,
VALUE_CHAR_HIGHER_5 TYPE STRING,
CHAR_VALUES_ARE_USED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_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_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-QUERY_ID sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-OBJECT_TYPE sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-SEGMENT sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-ROW_INDEX sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-CLASS_TYPE sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-CLASS sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-CLASS_TXT sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-CHARACT sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-CHARACT_TXT sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-ATINN sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-DATA_TYPE sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-VALUE_NUM_LOWER sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-VALUE_NUM_HIGHER sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-UNITOFMEASURE sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-UNITOFMEASURE_TXT sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-VALUE_STRING sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-VALUE_STRING_TXT sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-CLASS_2 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-CLASS_TXT_2 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-CHARACT_2 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-CHARACT_TXT_2 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-ATINN_2 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-DATA_TYPE_2 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-VALUE_NUM_LOWER_2 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-VALUE_NUM_HIGHER_2 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-UNITOFMEASURE_2 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-UNITOFMEASURE_TXT_2 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-VALUE_STRING_2 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-VALUE_STRING_TXT_2 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-CLASS_3 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-CLASS_TXT_3 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-CHARACT_3 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-CHARACT_TXT_3 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-ATINN_3 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-DATA_TYPE_3 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-VALUE_NUM_LOWER_3 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-VALUE_NUM_HIGHER_3 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-UNITOFMEASURE_3 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-UNITOFMEASURE_TXT_3 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-VALUE_STRING_3 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-VALUE_STRING_TXT_3 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-CLASS_4 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-CLASS_TXT_4 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-CHARACT_4 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-CHARACT_TXT_4 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-ATINN_4 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-DATA_TYPE_4 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-VALUE_NUM_LOWER_4 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-VALUE_NUM_HIGHER_4 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-UNITOFMEASURE_4 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-UNITOFMEASURE_TXT_4 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-VALUE_STRING_4 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-VALUE_STRING_TXT_4 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-CLASS_5 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-CLASS_TXT_5 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-CHARACT_5 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-CHARACT_TXT_5 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-ATINN_5 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-DATA_TYPE_5 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-VALUE_NUM_LOWER_5 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-VALUE_NUM_HIGHER_5 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-UNITOFMEASURE_5 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-UNITOFMEASURE_TXT_5 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-VALUE_STRING_5 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-VALUE_STRING_TXT_5 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-AND_OR sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-PO_CHECKED sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-PS_CHECKED sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-SO_CHECKED sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-OS_CHECKED sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-VALUE_CHAR_LOWER sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-VALUE_CHAR_HIGHER sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-VALUE_CHAR_LOWER_2 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-VALUE_CHAR_HIGHER_2 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-VALUE_CHAR_LOWER_3 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-VALUE_CHAR_HIGHER_3 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-VALUE_CHAR_LOWER_4 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-VALUE_CHAR_HIGHER_4 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-VALUE_CHAR_LOWER_5 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-VALUE_CHAR_HIGHER_5 sy-vline 
WA_/PLMB/S_RCP_SEA_CRIT_MCLASS_UI_STR-CHAR_VALUES_ARE_USED sy-vline      INTO ld_text SEPARATED BY SPACE.

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