ABAP Select data from SAP table PPSMMATDOC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PPSMMATDOC
*  INTO TABLE @DATA(IT_PPSMMATDOC2).
*--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_PPSMMATDOC INDEX 1 INTO DATA(WA_PPSMMATDOC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PPSMMATDOC>-MANDT = 1.
<PPSMMATDOC>-LEDGER = 1.
<PPSMMATDOC>-COMPANYCODE = 1.
<PPSMMATDOC>-MATERIALDOCUMENT = 1.
<PPSMMATDOC>-MATERIALDOCUMENTITEM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PPSMMATDOC-REFERENCETYPE, sy-vline,
  WA_PPSMMATDOC-MATERIALDOCUMENTYEAR, sy-vline,
  WA_PPSMMATDOC-REFERENCEORGANIZATIONUNITS, sy-vline,
  WA_PPSMMATDOC-FISCALYEAR, sy-vline,
  WA_PPSMMATDOC-POSTINGDATE, sy-vline,
  WA_PPSMMATDOC-FINANCIALMANAGEMENTAREA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PPSMMATDOC 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_PPSMMATDOC 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_PPSMMATDOC INTO WA_PPSMMATDOC.


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

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

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

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

*Conversion exit FMCIS, internal->external for field COMMITMENTITEM
CALL FUNCTION 'CONVERSION_EXIT_FMCIS_OUTPUT'
  EXPORTING
    input =                      WA_PPSMMATDOC-COMMITMENTITEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPSMMATDOC-COMMITMENTITEM.
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_PPSMMATDOC_STR, 
MANDT TYPE STRING,
LEDGER TYPE STRING,
COMPANYCODE TYPE STRING,
MATERIALDOCUMENT TYPE STRING,
MATERIALDOCUMENTITEM TYPE STRING,
REFERENCETYPE TYPE STRING,
MATERIALDOCUMENTYEAR TYPE STRING,
REFERENCEORGANIZATIONUNITS TYPE STRING,
FISCALYEAR TYPE STRING,
POSTINGDATE TYPE STRING,
FINANCIALMANAGEMENTAREA TYPE STRING,
FUND TYPE STRING,
FUNDNAME TYPE STRING,
GRANTID TYPE STRING,
GRANTNAME TYPE STRING,
BUDGETPERIOD TYPE STRING,
BUDGETPERIODNAME TYPE STRING,
FUNCTIONALAREA TYPE STRING,
FUNCTIONALAREANAME TYPE STRING,
FUNDEDPROGRAM TYPE STRING,
FUNDEDPROGRAMNAME TYPE STRING,
FUNDSCENTER TYPE STRING,
FUNDSCENTERNAME TYPE STRING,
COMMITMENTITEM TYPE STRING,
COMMITMENTITEMNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PPSMMATDOC_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_PPSMMATDOC_STR-MANDT sy-vline 
WA_PPSMMATDOC_STR-LEDGER sy-vline 
WA_PPSMMATDOC_STR-COMPANYCODE sy-vline 
WA_PPSMMATDOC_STR-MATERIALDOCUMENT sy-vline 
WA_PPSMMATDOC_STR-MATERIALDOCUMENTITEM sy-vline 
WA_PPSMMATDOC_STR-REFERENCETYPE sy-vline 
WA_PPSMMATDOC_STR-MATERIALDOCUMENTYEAR sy-vline 
WA_PPSMMATDOC_STR-REFERENCEORGANIZATIONUNITS sy-vline 
WA_PPSMMATDOC_STR-FISCALYEAR sy-vline 
WA_PPSMMATDOC_STR-POSTINGDATE sy-vline 
WA_PPSMMATDOC_STR-FINANCIALMANAGEMENTAREA sy-vline 
WA_PPSMMATDOC_STR-FUND sy-vline 
WA_PPSMMATDOC_STR-FUNDNAME sy-vline 
WA_PPSMMATDOC_STR-GRANTID sy-vline 
WA_PPSMMATDOC_STR-GRANTNAME sy-vline 
WA_PPSMMATDOC_STR-BUDGETPERIOD sy-vline 
WA_PPSMMATDOC_STR-BUDGETPERIODNAME sy-vline 
WA_PPSMMATDOC_STR-FUNCTIONALAREA sy-vline 
WA_PPSMMATDOC_STR-FUNCTIONALAREANAME sy-vline 
WA_PPSMMATDOC_STR-FUNDEDPROGRAM sy-vline 
WA_PPSMMATDOC_STR-FUNDEDPROGRAMNAME sy-vline 
WA_PPSMMATDOC_STR-FUNDSCENTER sy-vline 
WA_PPSMMATDOC_STR-FUNDSCENTERNAME sy-vline 
WA_PPSMMATDOC_STR-COMMITMENTITEM sy-vline 
WA_PPSMMATDOC_STR-COMMITMENTITEMNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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