ABAP Select data from SAP table BAPI_RE_MP_OCCPLAN_INT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPI_RE_MP_OCCPLAN_INT
*  INTO TABLE @DATA(IT_BAPI_RE_MP_OCCPLAN_INT2).
*--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_BAPI_RE_MP_OCCPLAN_INT INDEX 1 INTO DATA(WA_BAPI_RE_MP_OCCPLAN_INT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPI_RE_MP_OCCPLAN_INT>-OBJNR = 1.
<BAPI_RE_MP_OCCPLAN_INT>-OBJTYPE = 1.
<BAPI_RE_MP_OCCPLAN_INT>-OBJID = 1.
<BAPI_RE_MP_OCCPLAN_INT>-POGUID = 1.
<BAPI_RE_MP_OCCPLAN_INT>-OCCUPANT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPI_RE_MP_OCCPLAN_INT-OCCUPANTROLE, sy-vline,
  WA_BAPI_RE_MP_OCCPLAN_INT-OBJNROOOLD, sy-vline,
  WA_BAPI_RE_MP_OCCPLAN_INT-OCCPOSITIONOLD, sy-vline,
  WA_BAPI_RE_MP_OCCPLAN_INT-OBJNROO, sy-vline,
  WA_BAPI_RE_MP_OCCPLAN_INT-OCCPOSITION, sy-vline,
  WA_BAPI_RE_MP_OCCPLAN_INT-PLANTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPI_RE_MP_OCCPLAN_INT 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_BAPI_RE_MP_OCCPLAN_INT 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_BAPI_RE_MP_OCCPLAN_INT INTO WA_BAPI_RE_MP_OCCPLAN_INT.


*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 ALPHA, internal->external for field OCCUPANT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_RE_MP_OCCPLAN_INT-OCCUPANT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_RE_MP_OCCPLAN_INT-OCCUPANT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field OCCPOSITIONOLD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_RE_MP_OCCPLAN_INT-OCCPOSITIONOLD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_RE_MP_OCCPLAN_INT-OCCPOSITIONOLD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field OCCPOSITION
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_RE_MP_OCCPLAN_INT-OCCPOSITION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_RE_MP_OCCPLAN_INT-OCCPOSITION.
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_BAPI_RE_MP_OCCPLAN_INT_STR, 
OBJNR TYPE STRING,
OBJTYPE TYPE STRING,
OBJID TYPE STRING,
POGUID TYPE STRING,
OCCUPANT TYPE STRING,
OCCUPANTROLE TYPE STRING,
OBJNROOOLD TYPE STRING,
OCCPOSITIONOLD TYPE STRING,
OBJNROO TYPE STRING,
OCCPOSITION TYPE STRING,
PLANTYPE TYPE STRING,
IGNORE TYPE STRING,
PLANSTATUS TYPE STRING,
ISFREE TYPE STRING,
ISACTIVE TYPE STRING,
MOVEOUTDATE TYPE STRING,
MOVEINDATE TYPE STRING,
ISPERIODMANUAL TYPE STRING,
OCCQUOTENUM TYPE STRING,
OCCQUOTEDENOM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPI_RE_MP_OCCPLAN_INT_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_BAPI_RE_MP_OCCPLAN_INT_STR-OBJNR sy-vline 
WA_BAPI_RE_MP_OCCPLAN_INT_STR-OBJTYPE sy-vline 
WA_BAPI_RE_MP_OCCPLAN_INT_STR-OBJID sy-vline 
WA_BAPI_RE_MP_OCCPLAN_INT_STR-POGUID sy-vline 
WA_BAPI_RE_MP_OCCPLAN_INT_STR-OCCUPANT sy-vline 
WA_BAPI_RE_MP_OCCPLAN_INT_STR-OCCUPANTROLE sy-vline 
WA_BAPI_RE_MP_OCCPLAN_INT_STR-OBJNROOOLD sy-vline 
WA_BAPI_RE_MP_OCCPLAN_INT_STR-OCCPOSITIONOLD sy-vline 
WA_BAPI_RE_MP_OCCPLAN_INT_STR-OBJNROO sy-vline 
WA_BAPI_RE_MP_OCCPLAN_INT_STR-OCCPOSITION sy-vline 
WA_BAPI_RE_MP_OCCPLAN_INT_STR-PLANTYPE sy-vline 
WA_BAPI_RE_MP_OCCPLAN_INT_STR-IGNORE sy-vline 
WA_BAPI_RE_MP_OCCPLAN_INT_STR-PLANSTATUS sy-vline 
WA_BAPI_RE_MP_OCCPLAN_INT_STR-ISFREE sy-vline 
WA_BAPI_RE_MP_OCCPLAN_INT_STR-ISACTIVE sy-vline 
WA_BAPI_RE_MP_OCCPLAN_INT_STR-MOVEOUTDATE sy-vline 
WA_BAPI_RE_MP_OCCPLAN_INT_STR-MOVEINDATE sy-vline 
WA_BAPI_RE_MP_OCCPLAN_INT_STR-ISPERIODMANUAL sy-vline 
WA_BAPI_RE_MP_OCCPLAN_INT_STR-OCCQUOTENUM sy-vline 
WA_BAPI_RE_MP_OCCPLAN_INT_STR-OCCQUOTEDENOM sy-vline      INTO ld_text SEPARATED BY SPACE.

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