ABAP Select data from SAP table PMATVALMGMBALT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PMATVALMGMBALT
*  INTO TABLE @DATA(IT_PMATVALMGMBALT2).
*--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_PMATVALMGMBALT INDEX 1 INTO DATA(WA_PMATVALMGMBALT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PMATVALMGMBALT>-MANDT = 1.
<PMATVALMGMBALT>-COSTESTIMATE = 1.
<PMATVALMGMBALT>-LEDGER = 1.
<PMATVALMGMBALT>-COMPANYCODE = 1.
<PMATVALMGMBALT>-VALUATIONAREA = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PMATVALMGMBALT-MATERIAL, sy-vline,
  WA_PMATVALMGMBALT-PERIOD_TYPE, sy-vline,
  WA_PMATVALMGMBALT-TOTALVLTDSTOCKQUANTITY, sy-vline,
  WA_PMATVALMGMBALT-AMOUNTINCOMPANYCODECURRENCY, sy-vline,
  WA_PMATVALMGMBALT-AMOUNTINGROUPCURRENCY, sy-vline,
  WA_PMATVALMGMBALT-AMOUNTINFREEDEFINEDCURRENCY1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PMATVALMGMBALT 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_PMATVALMGMBALT 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_PMATVALMGMBALT INTO WA_PMATVALMGMBALT.


*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_PMATVALMGMBALT-LEDGER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMATVALMGMBALT-LEDGER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_PMATVALMGMBALT-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMATVALMGMBALT-MATERIAL.
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_PMATVALMGMBALT_STR, 
MANDT TYPE STRING,
COSTESTIMATE TYPE STRING,
LEDGER TYPE STRING,
COMPANYCODE TYPE STRING,
VALUATIONAREA TYPE STRING,
MATERIAL TYPE STRING,
PERIOD_TYPE TYPE STRING,
TOTALVLTDSTOCKQUANTITY TYPE STRING,
AMOUNTINCOMPANYCODECURRENCY TYPE STRING,
AMOUNTINGROUPCURRENCY TYPE STRING,
AMOUNTINFREEDEFINEDCURRENCY1 TYPE STRING,
AMOUNTINFREEDEFINEDCURRENCY2 TYPE STRING,
AMOUNTINFREEDEFINEDCURRENCY3 TYPE STRING,
AMOUNTINFREEDEFINEDCURRENCY4 TYPE STRING,
AMOUNTINFREEDEFINEDCURRENCY5 TYPE STRING,
AMOUNTINFREEDEFINEDCURRENCY6 TYPE STRING,
AMOUNTINFREEDEFINEDCURRENCY7 TYPE STRING,
AMOUNTINFREEDEFINEDCURRENCY8 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PMATVALMGMBALT_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_PMATVALMGMBALT_STR-MANDT sy-vline 
WA_PMATVALMGMBALT_STR-COSTESTIMATE sy-vline 
WA_PMATVALMGMBALT_STR-LEDGER sy-vline 
WA_PMATVALMGMBALT_STR-COMPANYCODE sy-vline 
WA_PMATVALMGMBALT_STR-VALUATIONAREA sy-vline 
WA_PMATVALMGMBALT_STR-MATERIAL sy-vline 
WA_PMATVALMGMBALT_STR-PERIOD_TYPE sy-vline 
WA_PMATVALMGMBALT_STR-TOTALVLTDSTOCKQUANTITY sy-vline 
WA_PMATVALMGMBALT_STR-AMOUNTINCOMPANYCODECURRENCY sy-vline 
WA_PMATVALMGMBALT_STR-AMOUNTINGROUPCURRENCY sy-vline 
WA_PMATVALMGMBALT_STR-AMOUNTINFREEDEFINEDCURRENCY1 sy-vline 
WA_PMATVALMGMBALT_STR-AMOUNTINFREEDEFINEDCURRENCY2 sy-vline 
WA_PMATVALMGMBALT_STR-AMOUNTINFREEDEFINEDCURRENCY3 sy-vline 
WA_PMATVALMGMBALT_STR-AMOUNTINFREEDEFINEDCURRENCY4 sy-vline 
WA_PMATVALMGMBALT_STR-AMOUNTINFREEDEFINEDCURRENCY5 sy-vline 
WA_PMATVALMGMBALT_STR-AMOUNTINFREEDEFINEDCURRENCY6 sy-vline 
WA_PMATVALMGMBALT_STR-AMOUNTINFREEDEFINEDCURRENCY7 sy-vline 
WA_PMATVALMGMBALT_STR-AMOUNTINFREEDEFINEDCURRENCY8 sy-vline      INTO ld_text SEPARATED BY SPACE.

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