ABAP Select data from SAP table FAC_S_Z3_MATLINVTRY_BALANCE into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FAC_S_Z3_MATLINVTRY_BALANCE 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 FAC_S_Z3_MATLINVTRY_BALANCE. 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 FAC_S_Z3_MATLINVTRY_BALANCE 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_FAC_S_Z3_MATLINVTRY_BALANCE TYPE STANDARD TABLE OF FAC_S_Z3_MATLINVTRY_BALANCE,
      WA_FAC_S_Z3_MATLINVTRY_BALANCE TYPE FAC_S_Z3_MATLINVTRY_BALANCE,
      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: <FAC_S_Z3_MATLINVTRY_BALANCE> TYPE FAC_S_Z3_MATLINVTRY_BALANCE.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_FAC_S_Z3_MATLINVTRY_BALANCE.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM FAC_S_Z3_MATLINVTRY_BALANCE
  INTO TABLE IT_FAC_S_Z3_MATLINVTRY_BALANCE.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FAC_S_Z3_MATLINVTRY_BALANCE
*  INTO TABLE @DATA(IT_FAC_S_Z3_MATLINVTRY_BALANCE2).
*--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_FAC_S_Z3_MATLINVTRY_BALANCE INDEX 1 INTO DATA(WA_FAC_S_Z3_MATLINVTRY_BALANCE2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_FAC_S_Z3_MATLINVTRY_BALANCE ASSIGNING <FAC_S_Z3_MATLINVTRY_BALANCE>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FAC_S_Z3_MATLINVTRY_BALANCE>-SAPCLIENT = 1.
<FAC_S_Z3_MATLINVTRY_BALANCE>-COMPANYCODE = 1.
<FAC_S_Z3_MATLINVTRY_BALANCE>-GLACCOUNT = 1.
<FAC_S_Z3_MATLINVTRY_BALANCE>-MATERIALGROUP = 1.
<FAC_S_Z3_MATLINVTRY_BALANCE>-FISCALYEAR = 1.

ENDLOOP.

LOOP AT IT_FAC_S_Z3_MATLINVTRY_BALANCE INTO WA_FAC_S_Z3_MATLINVTRY_BALANCE.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FAC_S_Z3_MATLINVTRY_BALANCE-FISCALPERIOD, sy-vline,
  WA_FAC_S_Z3_MATLINVTRY_BALANCE-MATERIAL, sy-vline,
  WA_FAC_S_Z3_MATLINVTRY_BALANCE-MATERIALNAME, sy-vline,
  WA_FAC_S_Z3_MATLINVTRY_BALANCE-VALUATIONAREA, sy-vline,
  WA_FAC_S_Z3_MATLINVTRY_BALANCE-INVENTORYVALUATIONTYPE, sy-vline,
  WA_FAC_S_Z3_MATLINVTRY_BALANCE-INVENTORYVALUATIONCATEGORY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FAC_S_Z3_MATLINVTRY_BALANCE 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_FAC_S_Z3_MATLINVTRY_BALANCE 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_FAC_S_Z3_MATLINVTRY_BALANCE INTO WA_FAC_S_Z3_MATLINVTRY_BALANCE.


*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 GLACCOUNT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAC_S_Z3_MATLINVTRY_BALANCE-GLACCOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAC_S_Z3_MATLINVTRY_BALANCE-GLACCOUNT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field FISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FAC_S_Z3_MATLINVTRY_BALANCE-FISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAC_S_Z3_MATLINVTRY_BALANCE-FISCALYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_FAC_S_Z3_MATLINVTRY_BALANCE-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAC_S_Z3_MATLINVTRY_BALANCE-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_FAC_S_Z3_MATLINVTRY_BALANCE_STR, 
SAPCLIENT TYPE STRING,
COMPANYCODE TYPE STRING,
GLACCOUNT TYPE STRING,
MATERIALGROUP TYPE STRING,
FISCALYEAR TYPE STRING,
FISCALPERIOD TYPE STRING,
MATERIAL TYPE STRING,
MATERIALNAME TYPE STRING,
VALUATIONAREA TYPE STRING,
INVENTORYVALUATIONTYPE TYPE STRING,
INVENTORYVALUATIONCATEGORY TYPE STRING,
INVENTORYVALUATIONCATEGORYNAME TYPE STRING,
MATERIALVALUATIONCLASS TYPE STRING,
MATERIALUSABILITYPROFILENAME TYPE STRING,
LIFOVALUATIONPOOLNUMBER TYPE STRING,
ISLIFOANDFIFORELEVANT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FAC_S_Z3_MATLINVTRY_BALANCE_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_FAC_S_Z3_MATLINVTRY_BALANCE_STR-SAPCLIENT sy-vline 
WA_FAC_S_Z3_MATLINVTRY_BALANCE_STR-COMPANYCODE sy-vline 
WA_FAC_S_Z3_MATLINVTRY_BALANCE_STR-GLACCOUNT sy-vline 
WA_FAC_S_Z3_MATLINVTRY_BALANCE_STR-MATERIALGROUP sy-vline 
WA_FAC_S_Z3_MATLINVTRY_BALANCE_STR-FISCALYEAR sy-vline 
WA_FAC_S_Z3_MATLINVTRY_BALANCE_STR-FISCALPERIOD sy-vline 
WA_FAC_S_Z3_MATLINVTRY_BALANCE_STR-MATERIAL sy-vline 
WA_FAC_S_Z3_MATLINVTRY_BALANCE_STR-MATERIALNAME sy-vline 
WA_FAC_S_Z3_MATLINVTRY_BALANCE_STR-VALUATIONAREA sy-vline 
WA_FAC_S_Z3_MATLINVTRY_BALANCE_STR-INVENTORYVALUATIONTYPE sy-vline 
WA_FAC_S_Z3_MATLINVTRY_BALANCE_STR-INVENTORYVALUATIONCATEGORY sy-vline 
WA_FAC_S_Z3_MATLINVTRY_BALANCE_STR-INVENTORYVALUATIONCATEGORYNAME sy-vline 
WA_FAC_S_Z3_MATLINVTRY_BALANCE_STR-MATERIALVALUATIONCLASS sy-vline 
WA_FAC_S_Z3_MATLINVTRY_BALANCE_STR-MATERIALUSABILITYPROFILENAME sy-vline 
WA_FAC_S_Z3_MATLINVTRY_BALANCE_STR-LIFOVALUATIONPOOLNUMBER sy-vline 
WA_FAC_S_Z3_MATLINVTRY_BALANCE_STR-ISLIFOANDFIFORELEVANT sy-vline      INTO ld_text SEPARATED BY SPACE.

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