ABAP Select data from SAP table PMCOQT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PMCOQT
*  INTO TABLE @DATA(IT_PMCOQT2).
*--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_PMCOQT INDEX 1 INTO DATA(WA_PMCOQT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PMCOQT>-MANDT = 1.
<PMCOQT>-OBJNR = 1.
<PMCOQT>-COCUR = 1.
<PMCOQT>-BELTP = 1.
<PMCOQT>-WRTTP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PMCOQT-GJAHR, sy-vline,
  WA_PMCOQT-ACPOS, sy-vline,
  WA_PMCOQT-VERSN, sy-vline,
  WA_PMCOQT-PERBL, sy-vline,
  WA_PMCOQT-VORGA, sy-vline,
  WA_PMCOQT-ABKAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PMCOQT 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_PMCOQT 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_PMCOQT INTO WA_PMCOQT.


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

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PMCOQT-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMCOQT-GJAHR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ABKAT, internal->external for field ABKAT
CALL FUNCTION 'CONVERSION_EXIT_ABKAT_OUTPUT'
  EXPORTING
    input =                      WA_PMCOQT-ABKAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMCOQT-ABKAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PMCOQT-MEINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMCOQT-MEINH.
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_PMCOQT_STR, 
MANDT TYPE STRING,
OBJNR TYPE STRING,
COCUR TYPE STRING,
BELTP TYPE STRING,
WRTTP TYPE STRING,
GJAHR TYPE STRING,
ACPOS TYPE STRING,
VERSN TYPE STRING,
PERBL TYPE STRING,
VORGA TYPE STRING,
ABKAT TYPE STRING,
BEMOT TYPE STRING,
MENTP TYPE STRING,
MEINH TYPE STRING,
MEG000 TYPE STRING,
MEG001 TYPE STRING,
MEG002 TYPE STRING,
MEG003 TYPE STRING,
MEG004 TYPE STRING,
MEG005 TYPE STRING,
MEG006 TYPE STRING,
MEG007 TYPE STRING,
MEG008 TYPE STRING,
MEG009 TYPE STRING,
MEG010 TYPE STRING,
MEG011 TYPE STRING,
MEG012 TYPE STRING,
MEG013 TYPE STRING,
MEG014 TYPE STRING,
MEG015 TYPE STRING,
MEG016 TYPE STRING,
MUV000 TYPE STRING,
MUV001 TYPE STRING,
MUV002 TYPE STRING,
MUV003 TYPE STRING,
MUV004 TYPE STRING,
MUV005 TYPE STRING,
MUV006 TYPE STRING,
MUV007 TYPE STRING,
MUV008 TYPE STRING,
MUV009 TYPE STRING,
MUV010 TYPE STRING,
MUV011 TYPE STRING,
MUV012 TYPE STRING,
MUV013 TYPE STRING,
MUV014 TYPE STRING,
MUV015 TYPE STRING,
MUV016 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PMCOQT_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_PMCOQT_STR-MANDT sy-vline 
WA_PMCOQT_STR-OBJNR sy-vline 
WA_PMCOQT_STR-COCUR sy-vline 
WA_PMCOQT_STR-BELTP sy-vline 
WA_PMCOQT_STR-WRTTP sy-vline 
WA_PMCOQT_STR-GJAHR sy-vline 
WA_PMCOQT_STR-ACPOS sy-vline 
WA_PMCOQT_STR-VERSN sy-vline 
WA_PMCOQT_STR-PERBL sy-vline 
WA_PMCOQT_STR-VORGA sy-vline 
WA_PMCOQT_STR-ABKAT sy-vline 
WA_PMCOQT_STR-BEMOT sy-vline 
WA_PMCOQT_STR-MENTP sy-vline 
WA_PMCOQT_STR-MEINH sy-vline 
WA_PMCOQT_STR-MEG000 sy-vline 
WA_PMCOQT_STR-MEG001 sy-vline 
WA_PMCOQT_STR-MEG002 sy-vline 
WA_PMCOQT_STR-MEG003 sy-vline 
WA_PMCOQT_STR-MEG004 sy-vline 
WA_PMCOQT_STR-MEG005 sy-vline 
WA_PMCOQT_STR-MEG006 sy-vline 
WA_PMCOQT_STR-MEG007 sy-vline 
WA_PMCOQT_STR-MEG008 sy-vline 
WA_PMCOQT_STR-MEG009 sy-vline 
WA_PMCOQT_STR-MEG010 sy-vline 
WA_PMCOQT_STR-MEG011 sy-vline 
WA_PMCOQT_STR-MEG012 sy-vline 
WA_PMCOQT_STR-MEG013 sy-vline 
WA_PMCOQT_STR-MEG014 sy-vline 
WA_PMCOQT_STR-MEG015 sy-vline 
WA_PMCOQT_STR-MEG016 sy-vline 
WA_PMCOQT_STR-MUV000 sy-vline 
WA_PMCOQT_STR-MUV001 sy-vline 
WA_PMCOQT_STR-MUV002 sy-vline 
WA_PMCOQT_STR-MUV003 sy-vline 
WA_PMCOQT_STR-MUV004 sy-vline 
WA_PMCOQT_STR-MUV005 sy-vline 
WA_PMCOQT_STR-MUV006 sy-vline 
WA_PMCOQT_STR-MUV007 sy-vline 
WA_PMCOQT_STR-MUV008 sy-vline 
WA_PMCOQT_STR-MUV009 sy-vline 
WA_PMCOQT_STR-MUV010 sy-vline 
WA_PMCOQT_STR-MUV011 sy-vline 
WA_PMCOQT_STR-MUV012 sy-vline 
WA_PMCOQT_STR-MUV013 sy-vline 
WA_PMCOQT_STR-MUV014 sy-vline 
WA_PMCOQT_STR-MUV015 sy-vline 
WA_PMCOQT_STR-MUV016 sy-vline      INTO ld_text SEPARATED BY SPACE.

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