ABAP Select data from SAP table MNG_POSTG_PERD_JOB_RETURN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MNG_POSTG_PERD_JOB_RETURN
*  INTO TABLE @DATA(IT_MNG_POSTG_PERD_JOB_RETURN2).
*--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_MNG_POSTG_PERD_JOB_RETURN INDEX 1 INTO DATA(WA_MNG_POSTG_PERD_JOB_RETURN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MNG_POSTG_PERD_JOB_RETURN>-PREVIOUS_PERIOD = 1.
<MNG_POSTG_PERD_JOB_RETURN>-CURRENT_PERIOD = 1.
<MNG_POSTG_PERD_JOB_RETURN>-NEXT_PERIOD = 1.
<MNG_POSTG_PERD_JOB_RETURN>-IS_CURRENT_PERIOD_SPECIAL = 1.
<MNG_POSTG_PERD_JOB_RETURN>-FIRST_RUN_DATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MNG_POSTG_PERD_JOB_RETURN-FIRST_RUN_TIME, sy-vline,
  WA_MNG_POSTG_PERD_JOB_RETURN-LAST_RUN_DATE, sy-vline,
  WA_MNG_POSTG_PERD_JOB_RETURN-LAST_RUN_TIME, sy-vline,
  WA_MNG_POSTG_PERD_JOB_RETURN-RUN_TIME_ZONE, sy-vline,
  WA_MNG_POSTG_PERD_JOB_RETURN-MORE_FISCAL_VARIANTS, sy-vline,
  WA_MNG_POSTG_PERD_JOB_RETURN-FROM_PERIOD_IS_SPECIAL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MNG_POSTG_PERD_JOB_RETURN 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_MNG_POSTG_PERD_JOB_RETURN 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_MNG_POSTG_PERD_JOB_RETURN INTO WA_MNG_POSTG_PERD_JOB_RETURN.


*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_MNG_POSTG_PERD_JOB_RETURN_STR, 
PREVIOUS_PERIOD TYPE STRING,
CURRENT_PERIOD TYPE STRING,
NEXT_PERIOD TYPE STRING,
IS_CURRENT_PERIOD_SPECIAL TYPE STRING,
FIRST_RUN_DATE TYPE STRING,
FIRST_RUN_TIME TYPE STRING,
LAST_RUN_DATE TYPE STRING,
LAST_RUN_TIME TYPE STRING,
RUN_TIME_ZONE TYPE STRING,
MORE_FISCAL_VARIANTS TYPE STRING,
FROM_PERIOD_IS_SPECIAL TYPE STRING,
TO_PERIOD_IS_SPECIAL TYPE STRING,
NO_PERIOD_SELECTED TYPE STRING,
TIMEZONE_INCORRECT TYPE STRING,
FACTORY_CALENDAR_INCORRECT TYPE STRING,
NON_WORKING_DAY_INCORRECT TYPE STRING,
BTTHIER_INCORRECT TYPE STRING,
FROM_PERIOD_INCORRECT TYPE STRING,
TO_PERIOD_INCORRECT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MNG_POSTG_PERD_JOB_RETURN_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_MNG_POSTG_PERD_JOB_RETURN_STR-PREVIOUS_PERIOD sy-vline 
WA_MNG_POSTG_PERD_JOB_RETURN_STR-CURRENT_PERIOD sy-vline 
WA_MNG_POSTG_PERD_JOB_RETURN_STR-NEXT_PERIOD sy-vline 
WA_MNG_POSTG_PERD_JOB_RETURN_STR-IS_CURRENT_PERIOD_SPECIAL sy-vline 
WA_MNG_POSTG_PERD_JOB_RETURN_STR-FIRST_RUN_DATE sy-vline 
WA_MNG_POSTG_PERD_JOB_RETURN_STR-FIRST_RUN_TIME sy-vline 
WA_MNG_POSTG_PERD_JOB_RETURN_STR-LAST_RUN_DATE sy-vline 
WA_MNG_POSTG_PERD_JOB_RETURN_STR-LAST_RUN_TIME sy-vline 
WA_MNG_POSTG_PERD_JOB_RETURN_STR-RUN_TIME_ZONE sy-vline 
WA_MNG_POSTG_PERD_JOB_RETURN_STR-MORE_FISCAL_VARIANTS sy-vline 
WA_MNG_POSTG_PERD_JOB_RETURN_STR-FROM_PERIOD_IS_SPECIAL sy-vline 
WA_MNG_POSTG_PERD_JOB_RETURN_STR-TO_PERIOD_IS_SPECIAL sy-vline 
WA_MNG_POSTG_PERD_JOB_RETURN_STR-NO_PERIOD_SELECTED sy-vline 
WA_MNG_POSTG_PERD_JOB_RETURN_STR-TIMEZONE_INCORRECT sy-vline 
WA_MNG_POSTG_PERD_JOB_RETURN_STR-FACTORY_CALENDAR_INCORRECT sy-vline 
WA_MNG_POSTG_PERD_JOB_RETURN_STR-NON_WORKING_DAY_INCORRECT sy-vline 
WA_MNG_POSTG_PERD_JOB_RETURN_STR-BTTHIER_INCORRECT sy-vline 
WA_MNG_POSTG_PERD_JOB_RETURN_STR-FROM_PERIOD_INCORRECT sy-vline 
WA_MNG_POSTG_PERD_JOB_RETURN_STR-TO_PERIOD_INCORRECT sy-vline      INTO ld_text SEPARATED BY SPACE.

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