ABAP Select data from SAP table BAPI_RES01 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP BAPI_RES01 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 BAPI_RES01. 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 BAPI_RES01 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_BAPI_RES01 TYPE STANDARD TABLE OF BAPI_RES01,
      WA_BAPI_RES01 TYPE BAPI_RES01,
      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: <BAPI_RES01> TYPE BAPI_RES01.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_BAPI_RES01.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM BAPI_RES01
  INTO TABLE IT_BAPI_RES01.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPI_RES01
*  INTO TABLE @DATA(IT_BAPI_RES012).
*--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_BAPI_RES01 INDEX 1 INTO DATA(WA_BAPI_RES012).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_BAPI_RES01 ASSIGNING <BAPI_RES01>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPI_RES01>-OPERATION = 1.
<BAPI_RES01>-RESERV_NO = 1.
<BAPI_RES01>-RES_ITEM = 1.
<BAPI_RES01>-RES_TYPE = 1.
<BAPI_RES01>-REQ_TYPE = 1.

ENDLOOP.

LOOP AT IT_BAPI_RES01 INTO WA_BAPI_RES01.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPI_RES01-RES_STATUS, sy-vline,
  WA_BAPI_RES01-DELETE_IND, sy-vline,
  WA_BAPI_RES01-MOVEMENT, sy-vline,
  WA_BAPI_RES01-WITHDRAWN, sy-vline,
  WA_BAPI_RES01-MISS_PART, sy-vline,
  WA_BAPI_RES01-MATERIAL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPI_RES01 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_BAPI_RES01 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_BAPI_RES01 INTO WA_BAPI_RES01.


*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_BAPI_RES01_STR, 
OPERATION TYPE STRING,
RESERV_NO TYPE STRING,
RES_ITEM TYPE STRING,
RES_TYPE TYPE STRING,
REQ_TYPE TYPE STRING,
RES_STATUS TYPE STRING,
DELETE_IND TYPE STRING,
MOVEMENT TYPE STRING,
WITHDRAWN TYPE STRING,
MISS_PART TYPE STRING,
MATERIAL TYPE STRING,
PLANT TYPE STRING,
STGE_LOC TYPE STRING,
BATCH TYPE STRING,
SPEC_STOCK TYPE STRING,
REQ_DATE TYPE STRING,
REQ_QUAN TYPE STRING,
BASE_UOM TYPE STRING,
BASE_UOM_ISO TYPE STRING,
DB_CR_IND TYPE STRING,
FIXED_QUAN TYPE STRING,
WITHD_QUAN TYPE STRING,
WITHDR_VAL TYPE STRING,
CURRENCY TYPE STRING,
CURRENCY_ISO TYPE STRING,
ENTRY_QNT TYPE STRING,
ENTRY_UOM TYPE STRING,
ENTRY_UOM_ISO TYPE STRING,
ORDERID TYPE STRING,
SALES_ORD TYPE STRING,
S_ORD_ITEM TYPE STRING,
MOVE_TYPE TYPE STRING,
BUS_AREA TYPE STRING,
ITEM_CAT TYPE STRING,
ITEM_NUMBER TYPE STRING,
COUNTER_1 TYPE STRING,
SORT_STRING TYPE STRING,
LATEST_REQUIREMENT_DATE TYPE STRING,
BULK_MAT TYPE STRING,
ROUTING_NO TYPE STRING,
SEQUENCE_NO TYPE STRING,
ACTIVITY TYPE STRING,
COUNTER_2 TYPE STRING,
OBJECT_NO TYPE STRING,
PRICE TYPE STRING,
FIXEDPRICE_EX TYPE STRING,
PRICE_UNIT TYPE STRING,
BACKFLUSH TYPE STRING,
CONF_QUAN TYPE STRING,
CHECK_RULE TYPE STRING,
DELIVERY_DAYS TYPE STRING,
INT_OBJ_NO TYPE STRING,
CONFIG_ITM TYPE STRING,
NO_DISP_PLUS TYPE STRING,
TIME_REQD TYPE STRING,
RES_ITEM_2 TYPE STRING,
MATL_GROUP TYPE STRING,
FIXEDPRICE TYPE STRING,
PRICE_UNIT_2 TYPE STRING,
ADV_SHIPT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPI_RES01_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_BAPI_RES01_STR-OPERATION sy-vline 
WA_BAPI_RES01_STR-RESERV_NO sy-vline 
WA_BAPI_RES01_STR-RES_ITEM sy-vline 
WA_BAPI_RES01_STR-RES_TYPE sy-vline 
WA_BAPI_RES01_STR-REQ_TYPE sy-vline 
WA_BAPI_RES01_STR-RES_STATUS sy-vline 
WA_BAPI_RES01_STR-DELETE_IND sy-vline 
WA_BAPI_RES01_STR-MOVEMENT sy-vline 
WA_BAPI_RES01_STR-WITHDRAWN sy-vline 
WA_BAPI_RES01_STR-MISS_PART sy-vline 
WA_BAPI_RES01_STR-MATERIAL sy-vline 
WA_BAPI_RES01_STR-PLANT sy-vline 
WA_BAPI_RES01_STR-STGE_LOC sy-vline 
WA_BAPI_RES01_STR-BATCH sy-vline 
WA_BAPI_RES01_STR-SPEC_STOCK sy-vline 
WA_BAPI_RES01_STR-REQ_DATE sy-vline 
WA_BAPI_RES01_STR-REQ_QUAN sy-vline 
WA_BAPI_RES01_STR-BASE_UOM sy-vline 
WA_BAPI_RES01_STR-BASE_UOM_ISO sy-vline 
WA_BAPI_RES01_STR-DB_CR_IND sy-vline 
WA_BAPI_RES01_STR-FIXED_QUAN sy-vline 
WA_BAPI_RES01_STR-WITHD_QUAN sy-vline 
WA_BAPI_RES01_STR-WITHDR_VAL sy-vline 
WA_BAPI_RES01_STR-CURRENCY sy-vline 
WA_BAPI_RES01_STR-CURRENCY_ISO sy-vline 
WA_BAPI_RES01_STR-ENTRY_QNT sy-vline 
WA_BAPI_RES01_STR-ENTRY_UOM sy-vline 
WA_BAPI_RES01_STR-ENTRY_UOM_ISO sy-vline 
WA_BAPI_RES01_STR-ORDERID sy-vline 
WA_BAPI_RES01_STR-SALES_ORD sy-vline 
WA_BAPI_RES01_STR-S_ORD_ITEM sy-vline 
WA_BAPI_RES01_STR-MOVE_TYPE sy-vline 
WA_BAPI_RES01_STR-BUS_AREA sy-vline 
WA_BAPI_RES01_STR-ITEM_CAT sy-vline 
WA_BAPI_RES01_STR-ITEM_NUMBER sy-vline 
WA_BAPI_RES01_STR-COUNTER_1 sy-vline 
WA_BAPI_RES01_STR-SORT_STRING sy-vline 
WA_BAPI_RES01_STR-LATEST_REQUIREMENT_DATE sy-vline 
WA_BAPI_RES01_STR-BULK_MAT sy-vline 
WA_BAPI_RES01_STR-ROUTING_NO sy-vline 
WA_BAPI_RES01_STR-SEQUENCE_NO sy-vline 
WA_BAPI_RES01_STR-ACTIVITY sy-vline 
WA_BAPI_RES01_STR-COUNTER_2 sy-vline 
WA_BAPI_RES01_STR-OBJECT_NO sy-vline 
WA_BAPI_RES01_STR-PRICE sy-vline 
WA_BAPI_RES01_STR-FIXEDPRICE_EX sy-vline 
WA_BAPI_RES01_STR-PRICE_UNIT sy-vline 
WA_BAPI_RES01_STR-BACKFLUSH sy-vline 
WA_BAPI_RES01_STR-CONF_QUAN sy-vline 
WA_BAPI_RES01_STR-CHECK_RULE sy-vline 
WA_BAPI_RES01_STR-DELIVERY_DAYS sy-vline 
WA_BAPI_RES01_STR-INT_OBJ_NO sy-vline 
WA_BAPI_RES01_STR-CONFIG_ITM sy-vline 
WA_BAPI_RES01_STR-NO_DISP_PLUS sy-vline 
WA_BAPI_RES01_STR-TIME_REQD sy-vline 
WA_BAPI_RES01_STR-RES_ITEM_2 sy-vline 
WA_BAPI_RES01_STR-MATL_GROUP sy-vline 
WA_BAPI_RES01_STR-FIXEDPRICE sy-vline 
WA_BAPI_RES01_STR-PRICE_UNIT_2 sy-vline 
WA_BAPI_RES01_STR-ADV_SHIPT sy-vline      INTO ld_text SEPARATED BY SPACE.

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