ABAP Select data from SAP table BAPIREQUEST_ITEM_X2 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP BAPIREQUEST_ITEM_X2 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 BAPIREQUEST_ITEM_X2. 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 BAPIREQUEST_ITEM_X2 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_BAPIREQUEST_ITEM_X2 TYPE STANDARD TABLE OF BAPIREQUEST_ITEM_X2,
      WA_BAPIREQUEST_ITEM_X2 TYPE BAPIREQUEST_ITEM_X2,
      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: <BAPIREQUEST_ITEM_X2> TYPE BAPIREQUEST_ITEM_X2.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_BAPIREQUEST_ITEM_X2.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM BAPIREQUEST_ITEM_X2
  INTO TABLE IT_BAPIREQUEST_ITEM_X2.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPIREQUEST_ITEM_X2
*  INTO TABLE @DATA(IT_BAPIREQUEST_ITEM_X22).
*--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_BAPIREQUEST_ITEM_X2 INDEX 1 INTO DATA(WA_BAPIREQUEST_ITEM_X22).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_BAPIREQUEST_ITEM_X2 ASSIGNING <BAPIREQUEST_ITEM_X2>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPIREQUEST_ITEM_X2>-BUSP_COMP_CODE = 1.
<BAPIREQUEST_ITEM_X2>-BUSPARTNER = 1.
<BAPIREQUEST_ITEM_X2>-CONT_ACCT = 1.
<BAPIREQUEST_ITEM_X2>-CONTRACT = 1.
<BAPIREQUEST_ITEM_X2>-MAIN_TRANS = 1.

ENDLOOP.

LOOP AT IT_BAPIREQUEST_ITEM_X2 INTO WA_BAPIREQUEST_ITEM_X2.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPIREQUEST_ITEM_X2-SUB_TRANS, sy-vline,
  WA_BAPIREQUEST_ITEM_X2-AMOUNT, sy-vline,
  WA_BAPIREQUEST_ITEM_X2-NET_DATE, sy-vline,
  WA_BAPIREQUEST_ITEM_X2-VALID_TO, sy-vline,
  WA_BAPIREQUEST_ITEM_X2-BUS_AREA, sy-vline,
  WA_BAPIREQUEST_ITEM_X2-DIVISION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPIREQUEST_ITEM_X2 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_BAPIREQUEST_ITEM_X2 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_BAPIREQUEST_ITEM_X2 INTO WA_BAPIREQUEST_ITEM_X2.


*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_BAPIREQUEST_ITEM_X2_STR, 
BUSP_COMP_CODE TYPE STRING,
BUSPARTNER TYPE STRING,
CONT_ACCT TYPE STRING,
CONTRACT TYPE STRING,
MAIN_TRANS TYPE STRING,
SUB_TRANS TYPE STRING,
AMOUNT TYPE STRING,
NET_DATE TYPE STRING,
VALID_TO TYPE STRING,
BUS_AREA TYPE STRING,
DIVISION TYPE STRING,
ITEM_TEXT TYPE STRING,
TAX_CODE TYPE STRING,
DISC_DUE TYPE STRING,
DISC_DAYS TYPE STRING,
DISC_RATE TYPE STRING,
AMOUNT_LOC_CURR TYPE STRING,
TRAN_RATE TYPE STRING,
PMNT_METH TYPE STRING,
DUNN_PROC TYPE STRING,
INT_KEY TYPE STRING,
PARTNER TYPE STRING,
BK_DETAILS TYPE STRING,
CRD_DETAILS TYPE STRING,
PERIOD_KEY TYPE STRING,
CALC_PERLO TYPE STRING,
CALC_PERHI TYPE STRING,
GLA_COMP_CODE TYPE STRING,
GL_ACCOUNT TYPE STRING,
PROFIT_CTR TYPE STRING,
COSTCENTER TYPE STRING,
ORDERID TYPE STRING,
SALES_ORD TYPE STRING,
S_ORD_ITEM TYPE STRING,
SCHED_LINE TYPE STRING,
WBS_ELEM TYPE STRING,
PROFIT_SEGM_NO TYPE STRING,
PROFIT_SEGM_HIST TYPE STRING,
TAXJURCODE TYPE STRING,
PLAN_GRP TYPE STRING,
PLAN_LEVEL TYPE STRING,
CM_EX_DAYS TYPE STRING,
CLASS_KEY TYPE STRING,
SUB_APPLICATION TYPE STRING,
GROUPING TYPE STRING,
SEPA_MANDATE_ID TYPE STRING,
TAX_AMOUNT TYPE STRING,
TAX_MANUAL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPIREQUEST_ITEM_X2_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_BAPIREQUEST_ITEM_X2_STR-BUSP_COMP_CODE sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-BUSPARTNER sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-CONT_ACCT sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-CONTRACT sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-MAIN_TRANS sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-SUB_TRANS sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-AMOUNT sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-NET_DATE sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-VALID_TO sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-BUS_AREA sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-DIVISION sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-ITEM_TEXT sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-TAX_CODE sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-DISC_DUE sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-DISC_DAYS sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-DISC_RATE sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-AMOUNT_LOC_CURR sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-TRAN_RATE sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-PMNT_METH sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-DUNN_PROC sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-INT_KEY sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-PARTNER sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-BK_DETAILS sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-CRD_DETAILS sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-PERIOD_KEY sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-CALC_PERLO sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-CALC_PERHI sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-GLA_COMP_CODE sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-GL_ACCOUNT sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-PROFIT_CTR sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-COSTCENTER sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-ORDERID sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-SALES_ORD sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-S_ORD_ITEM sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-SCHED_LINE sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-WBS_ELEM sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-PROFIT_SEGM_NO sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-PROFIT_SEGM_HIST sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-TAXJURCODE sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-PLAN_GRP sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-PLAN_LEVEL sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-CM_EX_DAYS sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-CLASS_KEY sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-SUB_APPLICATION sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-GROUPING sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-SEPA_MANDATE_ID sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-TAX_AMOUNT sy-vline 
WA_BAPIREQUEST_ITEM_X2_STR-TAX_MANUAL sy-vline      INTO ld_text SEPARATED BY SPACE.

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