ABAP Select data from SAP table MPLA_ADDITION into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MPLA_ADDITION
*  INTO TABLE @DATA(IT_MPLA_ADDITION2).
*--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_MPLA_ADDITION INDEX 1 INTO DATA(WA_MPLA_ADDITION2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MPLA_ADDITION>-DBKNZ = 1.
<MPLA_ADDITION>-PLAN_SCHEDULED = 1.
<MPLA_ADDITION>-IND_STATUS_LOVM = 1.
<MPLA_ADDITION>-IND_STATUS_INAK = 1.
<MPLA_ADDITION>-IND_STATUS_LOKZ = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MPLA_ADDITION-IND_STATUS_UPD, sy-vline,
  WA_MPLA_ADDITION-IND_LTEXT_UPD, sy-vline,
  WA_MPLA_ADDITION-MPLA_UPD, sy-vline,
  WA_MPLA_ADDITION-IND_PLANT_CALENDER, sy-vline,
  WA_MPLA_ADDITION-IND_MANUAL_CALL, sy-vline,
  WA_MPLA_ADDITION-IND_SCHEDULED_CALL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MPLA_ADDITION 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_MPLA_ADDITION 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_MPLA_ADDITION INTO WA_MPLA_ADDITION.


*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_MPLA_ADDITION_STR, 
DBKNZ TYPE STRING,
PLAN_SCHEDULED TYPE STRING,
IND_STATUS_LOVM TYPE STRING,
IND_STATUS_INAK TYPE STRING,
IND_STATUS_LOKZ TYPE STRING,
IND_STATUS_UPD TYPE STRING,
IND_LTEXT_UPD TYPE STRING,
MPLA_UPD TYPE STRING,
IND_PLANT_CALENDER TYPE STRING,
IND_MANUAL_CALL TYPE STRING,
IND_SCHEDULED_CALL TYPE STRING,
IND_TASKLST_DEL TYPE STRING,
CALL_TYPE TYPE STRING,
MPLA_IND TYPE STRING,
USER_OFFSET TYPE STRING,
IND_CALLS_ON_HOLD TYPE STRING,
LTKNZ_ACT TYPE STRING,
IND_NO_PACKAGES TYPE STRING,
START_VALUE_COUNTER TYPE STRING,
LOWEST_MANUAL_CALL TYPE STRING,
IND_NO_SCHEDULING TYPE STRING,
CYCLESEQIND TYPE STRING,
IND_UPD_CALLOBJECT TYPE STRING,
SETREPEATIND TYPE STRING,
IND_MCP_EXT TYPE STRING,
IND_PAST_DATE_ALLOWED TYPE STRING,
CONF_DATE TYPE STRING,
CONF_TIME TYPE STRING,
IND_RECALC_PAST_DATES TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MPLA_ADDITION_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_MPLA_ADDITION_STR-DBKNZ sy-vline 
WA_MPLA_ADDITION_STR-PLAN_SCHEDULED sy-vline 
WA_MPLA_ADDITION_STR-IND_STATUS_LOVM sy-vline 
WA_MPLA_ADDITION_STR-IND_STATUS_INAK sy-vline 
WA_MPLA_ADDITION_STR-IND_STATUS_LOKZ sy-vline 
WA_MPLA_ADDITION_STR-IND_STATUS_UPD sy-vline 
WA_MPLA_ADDITION_STR-IND_LTEXT_UPD sy-vline 
WA_MPLA_ADDITION_STR-MPLA_UPD sy-vline 
WA_MPLA_ADDITION_STR-IND_PLANT_CALENDER sy-vline 
WA_MPLA_ADDITION_STR-IND_MANUAL_CALL sy-vline 
WA_MPLA_ADDITION_STR-IND_SCHEDULED_CALL sy-vline 
WA_MPLA_ADDITION_STR-IND_TASKLST_DEL sy-vline 
WA_MPLA_ADDITION_STR-CALL_TYPE sy-vline 
WA_MPLA_ADDITION_STR-MPLA_IND sy-vline 
WA_MPLA_ADDITION_STR-USER_OFFSET sy-vline 
WA_MPLA_ADDITION_STR-IND_CALLS_ON_HOLD sy-vline 
WA_MPLA_ADDITION_STR-LTKNZ_ACT sy-vline 
WA_MPLA_ADDITION_STR-IND_NO_PACKAGES sy-vline 
WA_MPLA_ADDITION_STR-START_VALUE_COUNTER sy-vline 
WA_MPLA_ADDITION_STR-LOWEST_MANUAL_CALL sy-vline 
WA_MPLA_ADDITION_STR-IND_NO_SCHEDULING sy-vline 
WA_MPLA_ADDITION_STR-CYCLESEQIND sy-vline 
WA_MPLA_ADDITION_STR-IND_UPD_CALLOBJECT sy-vline 
WA_MPLA_ADDITION_STR-SETREPEATIND sy-vline 
WA_MPLA_ADDITION_STR-IND_MCP_EXT sy-vline 
WA_MPLA_ADDITION_STR-IND_PAST_DATE_ALLOWED sy-vline 
WA_MPLA_ADDITION_STR-CONF_DATE sy-vline 
WA_MPLA_ADDITION_STR-CONF_TIME sy-vline 
WA_MPLA_ADDITION_STR-IND_RECALC_PAST_DATES sy-vline      INTO ld_text SEPARATED BY SPACE.

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