ABAP Select data from SAP table PMPEOACHIST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PMPEOACHIST
*  INTO TABLE @DATA(IT_PMPEOACHIST2).
*--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_PMPEOACHIST INDEX 1 INTO DATA(WA_PMPEOACHIST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PMPEOACHIST>-MANDT = 1.
<PMPEOACHIST>-OPERATIONACTIVITYCONFIRMATION = 1.
<PMPEOACHIST>-MFGEXECUTIONDOCUMENTITEM = 1.
<PMPEOACHIST>-OPACTYCONFIRMATIONDATETIME = 1.
<PMPEOACHIST>-CREATEDBYUSER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PMPEOACHIST-CREATIONDATETIME, sy-vline,
  WA_PMPEOACHIST-SORTFIELD, sy-vline,
  WA_PMPEOACHIST-SHOPFLOORITEM, sy-vline,
  WA_PMPEOACHIST-OPACTYNTWKINSTANCE, sy-vline,
  WA_PMPEOACHIST-OPACTYNTWKELEMENT, sy-vline,
  WA_PMPEOACHIST-STATUSANDACTIONSCHEMA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PMPEOACHIST 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_PMPEOACHIST 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_PMPEOACHIST INTO WA_PMPEOACHIST.


*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 CUNIT, internal->external for field PRODUCTIONUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PMPEOACHIST-PRODUCTIONUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMPEOACHIST-PRODUCTIONUNIT.
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_PMPEOACHIST_STR, 
MANDT TYPE STRING,
OPERATIONACTIVITYCONFIRMATION TYPE STRING,
MFGEXECUTIONDOCUMENTITEM TYPE STRING,
OPACTYCONFIRMATIONDATETIME TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATETIME TYPE STRING,
SORTFIELD TYPE STRING,
SHOPFLOORITEM TYPE STRING,
OPACTYNTWKINSTANCE TYPE STRING,
OPACTYNTWKELEMENT TYPE STRING,
STATUSANDACTIONSCHEMA TYPE STRING,
MFGPROCGEXECACTION TYPE STRING,
ACTIONISSASACTION TYPE STRING,
BUSINESSPROCESSCONFIRMEDQTY TYPE STRING,
PRODUCTIONUNIT TYPE STRING,
OPACTYACTUALDURNINSECONDS TYPE STRING,
WORKCENTERBSDNETDURNINSECONDS TYPE STRING,
POSTINGISRETROACTIVE TYPE STRING,
MFGACTIONREASONCODEGROUPCTLG TYPE STRING,
MFGACTIONREASONCODEGROUP TYPE STRING,
MANUFACTURINGACTIONREASONCODE TYPE STRING,
SYSTEMMESSAGENUMBER TYPE STRING,
SYSTEMMESSAGEIDENTIFICATION TYPE STRING,
MFGEXECHISTMSGVARBLFIELD1 TYPE STRING,
MFGEXECHISTMSGVARBLFIELD2 TYPE STRING,
MFGEXECHISTMSGVARBLFIELD3 TYPE STRING,
MFGEXECHISTMSGVARBLFIELD4 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PMPEOACHIST_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_PMPEOACHIST_STR-MANDT sy-vline 
WA_PMPEOACHIST_STR-OPERATIONACTIVITYCONFIRMATION sy-vline 
WA_PMPEOACHIST_STR-MFGEXECUTIONDOCUMENTITEM sy-vline 
WA_PMPEOACHIST_STR-OPACTYCONFIRMATIONDATETIME sy-vline 
WA_PMPEOACHIST_STR-CREATEDBYUSER sy-vline 
WA_PMPEOACHIST_STR-CREATIONDATETIME sy-vline 
WA_PMPEOACHIST_STR-SORTFIELD sy-vline 
WA_PMPEOACHIST_STR-SHOPFLOORITEM sy-vline 
WA_PMPEOACHIST_STR-OPACTYNTWKINSTANCE sy-vline 
WA_PMPEOACHIST_STR-OPACTYNTWKELEMENT sy-vline 
WA_PMPEOACHIST_STR-STATUSANDACTIONSCHEMA sy-vline 
WA_PMPEOACHIST_STR-MFGPROCGEXECACTION sy-vline 
WA_PMPEOACHIST_STR-ACTIONISSASACTION sy-vline 
WA_PMPEOACHIST_STR-BUSINESSPROCESSCONFIRMEDQTY sy-vline 
WA_PMPEOACHIST_STR-PRODUCTIONUNIT sy-vline 
WA_PMPEOACHIST_STR-OPACTYACTUALDURNINSECONDS sy-vline 
WA_PMPEOACHIST_STR-WORKCENTERBSDNETDURNINSECONDS sy-vline 
WA_PMPEOACHIST_STR-POSTINGISRETROACTIVE sy-vline 
WA_PMPEOACHIST_STR-MFGACTIONREASONCODEGROUPCTLG sy-vline 
WA_PMPEOACHIST_STR-MFGACTIONREASONCODEGROUP sy-vline 
WA_PMPEOACHIST_STR-MANUFACTURINGACTIONREASONCODE sy-vline 
WA_PMPEOACHIST_STR-SYSTEMMESSAGENUMBER sy-vline 
WA_PMPEOACHIST_STR-SYSTEMMESSAGEIDENTIFICATION sy-vline 
WA_PMPEOACHIST_STR-MFGEXECHISTMSGVARBLFIELD1 sy-vline 
WA_PMPEOACHIST_STR-MFGEXECHISTMSGVARBLFIELD2 sy-vline 
WA_PMPEOACHIST_STR-MFGEXECHISTMSGVARBLFIELD3 sy-vline 
WA_PMPEOACHIST_STR-MFGEXECHISTMSGVARBLFIELD4 sy-vline      INTO ld_text SEPARATED BY SPACE.

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