ABAP Select data from SAP table INV_INVENTORY_BY_LOC_MATQR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM INV_INVENTORY_BY_LOC_MATQR
*  INTO TABLE @DATA(IT_INV_INVENTORY_BY_LOC_MATQR2).
*--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_INV_INVENTORY_BY_LOC_MATQR INDEX 1 INTO DATA(WA_INV_INVENTORY_BY_LOC_MATQR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<INV_INVENTORY_BY_LOC_MATQR>-CONTROLLER = 1.
<INV_INVENTORY_BY_LOC_MATQR>-INVENTORY_BY_LOCATION_AND_MAT = 1.
<INV_INVENTORY_BY_LOC_MATQR>-CONTROLLER = 1.
<INV_INVENTORY_BY_LOC_MATQR>-INV_SELECTION_BY_LOC_MATERIAL = 1.
<INV_INVENTORY_BY_LOC_MATQR>-CONTROLLER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_INV_INVENTORY_BY_LOC_MATQR-MAIN_INVENTORY_INDICATORS, sy-vline,
  WA_INV_INVENTORY_BY_LOC_MATQR-CONTROLLER, sy-vline,
  WA_INV_INVENTORY_BY_LOC_MATQR-LOGISTICS_AREA_INV_REQ, sy-vline,
  WA_INV_INVENTORY_BY_LOC_MATQR-LOCATION_INV_REQ, sy-vline,
  WA_INV_INVENTORY_BY_LOC_MATQR-SEPARATE_INV_BY_BATCHES_REQ, sy-vline,
  WA_INV_INVENTORY_BY_LOC_MATQR-SEPARATE_INV_BY_LOG_AREA_REQ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_INV_INVENTORY_BY_LOC_MATQR 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_INV_INVENTORY_BY_LOC_MATQR 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_INV_INVENTORY_BY_LOC_MATQR INTO WA_INV_INVENTORY_BY_LOC_MATQR.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_INV_INVENTORY_BY_LOC_MATQR_STR, 
CONTROLLER TYPE STRING,
INVENTORY_BY_LOCATION_AND_MAT TYPE STRING,
CONTROLLER TYPE STRING,
INV_SELECTION_BY_LOC_MATERIAL TYPE STRING,
CONTROLLER TYPE STRING,
MAIN_INVENTORY_INDICATORS TYPE STRING,
CONTROLLER TYPE STRING,
LOGISTICS_AREA_INV_REQ TYPE STRING,
LOCATION_INV_REQ TYPE STRING,
SEPARATE_INV_BY_BATCHES_REQ TYPE STRING,
SEPARATE_INV_BY_LOG_AREA_REQ TYPE STRING,
AGGREGATE_INV_OVER_BATCHES_REQ TYPE STRING,
AGGREGATE_INV_OVER_LOG_AREA TYPE STRING,
AGGREGATE_UNREST_AND_POS_REQ TYPE STRING,
SERIAL_NUMBER_REQUESTED_INDICA TYPE STRING,
SPECIAL_INVENTORY_INDICATORS TYPE STRING,
CONTROLLER TYPE STRING,
SUPPLIER_CONSIGNMENT_INV_REQ TYPE STRING,
SEPARATE_SUPPLIER_CONSIGNMENT TYPE STRING,
SUPPLIER_RET_PACKAGES_REQ TYPE STRING,
SEPARATE_SUPPLIER_RET_PACKAGES TYPE STRING,
CUSTOMER_CONSIGNMENT_INV_REQ TYPE STRING,
SEPARATE_CUSTOMER_CONSIGNMENT TYPE STRING,
CUSTOMER_RET_PACKAGES_REQ TYPE STRING,
SEPARATE_CUSTOMER_RET_PACKAGES TYPE STRING,
SUBCONTRACTOR_INV_REQ TYPE STRING,
SEPARATE_SUBCONTRACTOR TYPE STRING,
SALES_ORDER_INV_REQ TYPE STRING,
SEPARATE_SALES_ORDER TYPE STRING,
PROJECT_INV_REQ TYPE STRING,
SEPARATE_PROJECT TYPE STRING,
EXPECTED_INVENTORY_CHANGE_IND TYPE STRING,
CONTROLLER TYPE STRING,
ON_ORDER_EXP_CHG_REQ TYPE STRING,
ON_ORDER_CONSIGN_EXP_CHG_REQ TYPE STRING,
GR_BLOCKED_EXP_CHG_REQ TYPE STRING,
STOCK_TRANSFER_ORD_EXP_CHG_REQ TYPE STRING,
IN_TRANSIT_EXP_CHG_REQ TYPE STRING,
PRODUCTION_ORD_EXP_CHG_REQ TYPE STRING,
INQUIRY_EXP_CHG_REQ TYPE STRING,
QUOTATION_EXP_CHG_REQ TYPE STRING,
SALES_ORDER_EXP_CHG_REQ TYPE STRING,
SCHEDULING_AGREE_EXP_CHG_REQ TYPE STRING,
SALES_CONTRACT_EXP_CHG_REQ TYPE STRING,
SO_FREE_CHARGE_EXP_CHG_REQ TYPE STRING,
OUT_DELIVERY_EXP_CHG_REQ TYPE STRING,
RESERVATIONS_EXP_CHG_REQ TYPE STRING,
RCPT_RESERVATIONS_EXP_CHG_REQ TYPE STRING,
POINT_OF_SALE_EXP_CHG_REQ TYPE STRING,
MATERIAL TYPE STRING,
LOCATION TYPE STRING,
PARTY TYPE STRING,
CONTROLLER TYPE STRING,
SUPPLIER_PARTY TYPE STRING,
CUSTOMER_PARTY TYPE STRING,
SUPPLIER_SUBCONTRACTOR_PARTY TYPE STRING,
SALES_ORDER_ID TYPE STRING,
PROJECT_WORK_BREAKDOWN_STRUCT TYPE STRING,
PROCESSING_CONDITIONS TYPE STRING,
CONTROLLER TYPE STRING,
UNLIMITED_QUERY_HITS_INDICATOR TYPE STRING,
QUERY_HITS_MAXIMUM_NUMBER_VAL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_INV_INVENTORY_BY_LOC_MATQR_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_INV_INVENTORY_BY_LOC_MATQR_STR-CONTROLLER sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-INVENTORY_BY_LOCATION_AND_MAT sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-CONTROLLER sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-INV_SELECTION_BY_LOC_MATERIAL sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-CONTROLLER sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-MAIN_INVENTORY_INDICATORS sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-CONTROLLER sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-LOGISTICS_AREA_INV_REQ sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-LOCATION_INV_REQ sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-SEPARATE_INV_BY_BATCHES_REQ sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-SEPARATE_INV_BY_LOG_AREA_REQ sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-AGGREGATE_INV_OVER_BATCHES_REQ sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-AGGREGATE_INV_OVER_LOG_AREA sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-AGGREGATE_UNREST_AND_POS_REQ sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-SERIAL_NUMBER_REQUESTED_INDICA sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-SPECIAL_INVENTORY_INDICATORS sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-CONTROLLER sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-SUPPLIER_CONSIGNMENT_INV_REQ sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-SEPARATE_SUPPLIER_CONSIGNMENT sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-SUPPLIER_RET_PACKAGES_REQ sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-SEPARATE_SUPPLIER_RET_PACKAGES sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-CUSTOMER_CONSIGNMENT_INV_REQ sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-SEPARATE_CUSTOMER_CONSIGNMENT sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-CUSTOMER_RET_PACKAGES_REQ sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-SEPARATE_CUSTOMER_RET_PACKAGES sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-SUBCONTRACTOR_INV_REQ sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-SEPARATE_SUBCONTRACTOR sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-SALES_ORDER_INV_REQ sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-SEPARATE_SALES_ORDER sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-PROJECT_INV_REQ sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-SEPARATE_PROJECT sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-EXPECTED_INVENTORY_CHANGE_IND sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-CONTROLLER sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-ON_ORDER_EXP_CHG_REQ sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-ON_ORDER_CONSIGN_EXP_CHG_REQ sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-GR_BLOCKED_EXP_CHG_REQ sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-STOCK_TRANSFER_ORD_EXP_CHG_REQ sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-IN_TRANSIT_EXP_CHG_REQ sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-PRODUCTION_ORD_EXP_CHG_REQ sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-INQUIRY_EXP_CHG_REQ sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-QUOTATION_EXP_CHG_REQ sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-SALES_ORDER_EXP_CHG_REQ sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-SCHEDULING_AGREE_EXP_CHG_REQ sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-SALES_CONTRACT_EXP_CHG_REQ sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-SO_FREE_CHARGE_EXP_CHG_REQ sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-OUT_DELIVERY_EXP_CHG_REQ sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-RESERVATIONS_EXP_CHG_REQ sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-RCPT_RESERVATIONS_EXP_CHG_REQ sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-POINT_OF_SALE_EXP_CHG_REQ sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-MATERIAL sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-LOCATION sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-PARTY sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-CONTROLLER sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-SUPPLIER_PARTY sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-CUSTOMER_PARTY sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-SUPPLIER_SUBCONTRACTOR_PARTY sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-SALES_ORDER_ID sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-PROJECT_WORK_BREAKDOWN_STRUCT sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-PROCESSING_CONDITIONS sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-CONTROLLER sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-UNLIMITED_QUERY_HITS_INDICATOR sy-vline 
WA_INV_INVENTORY_BY_LOC_MATQR_STR-QUERY_HITS_MAXIMUM_NUMBER_VAL sy-vline      INTO ld_text SEPARATED BY SPACE.

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