ABAP Select data from SAP table PMPECMPASSYCHIST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PMPECMPASSYCHIST
*  INTO TABLE @DATA(IT_PMPECMPASSYCHIST2).
*--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_PMPECMPASSYCHIST INDEX 1 INTO DATA(WA_PMPECMPASSYCHIST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PMPECMPASSYCHIST>-MANDT = 1.
<PMPECMPASSYCHIST>-ASSEMBLYCORRECTIONDOCUMENT = 1.
<PMPECMPASSYCHIST>-MFGPROCGEXECACTION = 1.
<PMPECMPASSYCHIST>-MANUFACTURINGORDER = 1.
<PMPECMPASSYCHIST>-EVENTDATETIME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PMPECMPASSYCHIST-SHOPFLOOREXECUTIONUSER, sy-vline,
  WA_PMPECMPASSYCHIST-CREATEDBYUSER, sy-vline,
  WA_PMPECMPASSYCHIST-CREATIONDATETIME, sy-vline,
  WA_PMPECMPASSYCHIST-SHOPFLOORITEM, sy-vline,
  WA_PMPECMPASSYCHIST-MATERIALCOMPONENT, sy-vline,
  WA_PMPECMPASSYCHIST-ASSEMBLEDSHOPFLOORITEM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PMPECMPASSYCHIST 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_PMPECMPASSYCHIST 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_PMPECMPASSYCHIST INTO WA_PMPECMPASSYCHIST.


*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 MANUFACTURINGORDER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PMPECMPASSYCHIST-MANUFACTURINGORDER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMPECMPASSYCHIST-MANUFACTURINGORDER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATERIALCOMPONENT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_PMPECMPASSYCHIST-MATERIALCOMPONENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMPECMPASSYCHIST-MATERIALCOMPONENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GERNR, internal->external for field REPLACEDSERIALNUMBER
CALL FUNCTION 'CONVERSION_EXIT_GERNR_OUTPUT'
  EXPORTING
    input =                      WA_PMPECMPASSYCHIST-REPLACEDSERIALNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMPECMPASSYCHIST-REPLACEDSERIALNUMBER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ENTRYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PMPECMPASSYCHIST-ENTRYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMPECMPASSYCHIST-ENTRYUNIT.
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_PMPECMPASSYCHIST_STR, 
MANDT TYPE STRING,
ASSEMBLYCORRECTIONDOCUMENT TYPE STRING,
MFGPROCGEXECACTION TYPE STRING,
MANUFACTURINGORDER TYPE STRING,
EVENTDATETIME TYPE STRING,
SHOPFLOOREXECUTIONUSER TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATETIME TYPE STRING,
SHOPFLOORITEM TYPE STRING,
MATERIALCOMPONENT TYPE STRING,
ASSEMBLEDSHOPFLOORITEM TYPE STRING,
ASSEMBLEDBATCH TYPE STRING,
REFERENCEDESIGNATORVALUE TYPE STRING,
REPLACEDSHOPFLOORITEM TYPE STRING,
REPLACEDSERIALNUMBER TYPE STRING,
REPLACEDBATCH TYPE STRING,
QUANTITYINENTRYUNIT TYPE STRING,
ENTRYUNIT TYPE STRING,
MFGACTIONREASONCODEGROUPCTLG TYPE STRING,
MFGACTIONREASONCODEGROUP TYPE STRING,
MANUFACTURINGACTIONREASONCODE TYPE STRING,
MFGEXECUTIONDOCUMENTNOTE 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_PMPECMPASSYCHIST_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_PMPECMPASSYCHIST_STR-MANDT sy-vline 
WA_PMPECMPASSYCHIST_STR-ASSEMBLYCORRECTIONDOCUMENT sy-vline 
WA_PMPECMPASSYCHIST_STR-MFGPROCGEXECACTION sy-vline 
WA_PMPECMPASSYCHIST_STR-MANUFACTURINGORDER sy-vline 
WA_PMPECMPASSYCHIST_STR-EVENTDATETIME sy-vline 
WA_PMPECMPASSYCHIST_STR-SHOPFLOOREXECUTIONUSER sy-vline 
WA_PMPECMPASSYCHIST_STR-CREATEDBYUSER sy-vline 
WA_PMPECMPASSYCHIST_STR-CREATIONDATETIME sy-vline 
WA_PMPECMPASSYCHIST_STR-SHOPFLOORITEM sy-vline 
WA_PMPECMPASSYCHIST_STR-MATERIALCOMPONENT sy-vline 
WA_PMPECMPASSYCHIST_STR-ASSEMBLEDSHOPFLOORITEM sy-vline 
WA_PMPECMPASSYCHIST_STR-ASSEMBLEDBATCH sy-vline 
WA_PMPECMPASSYCHIST_STR-REFERENCEDESIGNATORVALUE sy-vline 
WA_PMPECMPASSYCHIST_STR-REPLACEDSHOPFLOORITEM sy-vline 
WA_PMPECMPASSYCHIST_STR-REPLACEDSERIALNUMBER sy-vline 
WA_PMPECMPASSYCHIST_STR-REPLACEDBATCH sy-vline 
WA_PMPECMPASSYCHIST_STR-QUANTITYINENTRYUNIT sy-vline 
WA_PMPECMPASSYCHIST_STR-ENTRYUNIT sy-vline 
WA_PMPECMPASSYCHIST_STR-MFGACTIONREASONCODEGROUPCTLG sy-vline 
WA_PMPECMPASSYCHIST_STR-MFGACTIONREASONCODEGROUP sy-vline 
WA_PMPECMPASSYCHIST_STR-MANUFACTURINGACTIONREASONCODE sy-vline 
WA_PMPECMPASSYCHIST_STR-MFGEXECUTIONDOCUMENTNOTE sy-vline 
WA_PMPECMPASSYCHIST_STR-SYSTEMMESSAGENUMBER sy-vline 
WA_PMPECMPASSYCHIST_STR-SYSTEMMESSAGEIDENTIFICATION sy-vline 
WA_PMPECMPASSYCHIST_STR-MFGEXECHISTMSGVARBLFIELD1 sy-vline 
WA_PMPECMPASSYCHIST_STR-MFGEXECHISTMSGVARBLFIELD2 sy-vline 
WA_PMPECMPASSYCHIST_STR-MFGEXECHISTMSGVARBLFIELD3 sy-vline 
WA_PMPECMPASSYCHIST_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.