ABAP Select data from SAP table PPINT_MANUFACTURING_ORDER_RELA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PPINT_MANUFACTURING_ORDER_RELA
*  INTO TABLE @DATA(IT_PPINT_MANUFACTURING_ORDER_RELA2).
*--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_PPINT_MANUFACTURING_ORDER_RELA INDEX 1 INTO DATA(WA_PPINT_MANUFACTURING_ORDER_RELA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PPINT_MANUFACTURING_ORDER_RELA>-CONTROLLER = 1.
<PPINT_MANUFACTURING_ORDER_RELA>-PREDECESSOR_MFGORDER_NODE_TYPE = 1.
<PPINT_MANUFACTURING_ORDER_RELA>-PREDECESSOR_MFGORDER_NODE_ID = 1.
<PPINT_MANUFACTURING_ORDER_RELA>-PREDECESSOR_ORDER = 1.
<PPINT_MANUFACTURING_ORDER_RELA>-PREDECESSOR_ORDER_OPERATION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PPINT_MANUFACTURING_ORDER_RELA-SUCCESSOR_MFGORDER_NODE_TYPE, sy-vline,
  WA_PPINT_MANUFACTURING_ORDER_RELA-SUCCESSOR_MFGORDER_NODE_ID, sy-vline,
  WA_PPINT_MANUFACTURING_ORDER_RELA-SUCCESSOR_ORDER, sy-vline,
  WA_PPINT_MANUFACTURING_ORDER_RELA-SUCCESSOR_ORDER_OPERATION, sy-vline,
  WA_PPINT_MANUFACTURING_ORDER_RELA-NETWORK_ACTIVITY_RELATION_TYPE, sy-vline,
  WA_PPINT_MANUFACTURING_ORDER_RELA-WORK_CENTER_INTERNAL_ID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PPINT_MANUFACTURING_ORDER_RELA 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_PPINT_MANUFACTURING_ORDER_RELA 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_PPINT_MANUFACTURING_ORDER_RELA INTO WA_PPINT_MANUFACTURING_ORDER_RELA.


*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_PPINT_MANUFACTURING_ORDER_RELA_STR, 
CONTROLLER TYPE STRING,
PREDECESSOR_MFGORDER_NODE_TYPE TYPE STRING,
PREDECESSOR_MFGORDER_NODE_ID TYPE STRING,
PREDECESSOR_ORDER TYPE STRING,
PREDECESSOR_ORDER_OPERATION TYPE STRING,
SUCCESSOR_MFGORDER_NODE_TYPE TYPE STRING,
SUCCESSOR_MFGORDER_NODE_ID TYPE STRING,
SUCCESSOR_ORDER TYPE STRING,
SUCCESSOR_ORDER_OPERATION TYPE STRING,
NETWORK_ACTIVITY_RELATION_TYPE TYPE STRING,
WORK_CENTER_INTERNAL_ID TYPE STRING,
WORK_CENTER TYPE STRING,
WORK_CENTER_PLANT TYPE STRING,
FACTORY_CALENDER TYPE STRING,
TIME_INTVL_BTWN_RELSHP_NODE TYPE STRING,
CONTROLLER TYPE STRING,
TIME_INTVL_BTWN_RELSHP_CONTROL TYPE STRING,
CONTROLLER TYPE STRING,
TIME_INTVL_IS_ABSOLUTE TYPE STRING,
TIME_INTVL_IS_PCT_OF_PRDCSSR_D TYPE STRING,
TIME_INTVL_IS_PCT_OF_SUCCSSR_D TYPE STRING,
TIME_INTVL_BTWN_RELSHP_CONTROL TYPE STRING,
TIME_INTVL_BTWN_RELSHP TYPE STRING,
CONTROLLER TYPE STRING,
UNIT_CODE TYPE STRING,
SAPUNIT_CODE TYPE STRING,
CONTENT TYPE STRING,
MAX_TIME_INTVL_BTWN_RELSHP TYPE STRING,
CONTROLLER TYPE STRING,
UNIT_CODE TYPE STRING,
SAPUNIT_CODE TYPE STRING,
CONTENT TYPE STRING,
TIME_INTVL_BTWN_RELSHP_IN_PCT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PPINT_MANUFACTURING_ORDER_RELA_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_PPINT_MANUFACTURING_ORDER_RELA_STR-CONTROLLER sy-vline 
WA_PPINT_MANUFACTURING_ORDER_RELA_STR-PREDECESSOR_MFGORDER_NODE_TYPE sy-vline 
WA_PPINT_MANUFACTURING_ORDER_RELA_STR-PREDECESSOR_MFGORDER_NODE_ID sy-vline 
WA_PPINT_MANUFACTURING_ORDER_RELA_STR-PREDECESSOR_ORDER sy-vline 
WA_PPINT_MANUFACTURING_ORDER_RELA_STR-PREDECESSOR_ORDER_OPERATION sy-vline 
WA_PPINT_MANUFACTURING_ORDER_RELA_STR-SUCCESSOR_MFGORDER_NODE_TYPE sy-vline 
WA_PPINT_MANUFACTURING_ORDER_RELA_STR-SUCCESSOR_MFGORDER_NODE_ID sy-vline 
WA_PPINT_MANUFACTURING_ORDER_RELA_STR-SUCCESSOR_ORDER sy-vline 
WA_PPINT_MANUFACTURING_ORDER_RELA_STR-SUCCESSOR_ORDER_OPERATION sy-vline 
WA_PPINT_MANUFACTURING_ORDER_RELA_STR-NETWORK_ACTIVITY_RELATION_TYPE sy-vline 
WA_PPINT_MANUFACTURING_ORDER_RELA_STR-WORK_CENTER_INTERNAL_ID sy-vline 
WA_PPINT_MANUFACTURING_ORDER_RELA_STR-WORK_CENTER sy-vline 
WA_PPINT_MANUFACTURING_ORDER_RELA_STR-WORK_CENTER_PLANT sy-vline 
WA_PPINT_MANUFACTURING_ORDER_RELA_STR-FACTORY_CALENDER sy-vline 
WA_PPINT_MANUFACTURING_ORDER_RELA_STR-TIME_INTVL_BTWN_RELSHP_NODE sy-vline 
WA_PPINT_MANUFACTURING_ORDER_RELA_STR-CONTROLLER sy-vline 
WA_PPINT_MANUFACTURING_ORDER_RELA_STR-TIME_INTVL_BTWN_RELSHP_CONTROL sy-vline 
WA_PPINT_MANUFACTURING_ORDER_RELA_STR-CONTROLLER sy-vline 
WA_PPINT_MANUFACTURING_ORDER_RELA_STR-TIME_INTVL_IS_ABSOLUTE sy-vline 
WA_PPINT_MANUFACTURING_ORDER_RELA_STR-TIME_INTVL_IS_PCT_OF_PRDCSSR_D sy-vline 
WA_PPINT_MANUFACTURING_ORDER_RELA_STR-TIME_INTVL_IS_PCT_OF_SUCCSSR_D sy-vline 
WA_PPINT_MANUFACTURING_ORDER_RELA_STR-TIME_INTVL_BTWN_RELSHP_CONTROL sy-vline 
WA_PPINT_MANUFACTURING_ORDER_RELA_STR-TIME_INTVL_BTWN_RELSHP sy-vline 
WA_PPINT_MANUFACTURING_ORDER_RELA_STR-CONTROLLER sy-vline 
WA_PPINT_MANUFACTURING_ORDER_RELA_STR-UNIT_CODE sy-vline 
WA_PPINT_MANUFACTURING_ORDER_RELA_STR-SAPUNIT_CODE sy-vline 
WA_PPINT_MANUFACTURING_ORDER_RELA_STR-CONTENT sy-vline 
WA_PPINT_MANUFACTURING_ORDER_RELA_STR-MAX_TIME_INTVL_BTWN_RELSHP sy-vline 
WA_PPINT_MANUFACTURING_ORDER_RELA_STR-CONTROLLER sy-vline 
WA_PPINT_MANUFACTURING_ORDER_RELA_STR-UNIT_CODE sy-vline 
WA_PPINT_MANUFACTURING_ORDER_RELA_STR-SAPUNIT_CODE sy-vline 
WA_PPINT_MANUFACTURING_ORDER_RELA_STR-CONTENT sy-vline 
WA_PPINT_MANUFACTURING_ORDER_RELA_STR-TIME_INTVL_BTWN_RELSHP_IN_PCT sy-vline      INTO ld_text SEPARATED BY SPACE.

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