ABAP Select data from SAP table REXCESIBI into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REXCESIBI
*  INTO TABLE @DATA(IT_REXCESIBI2).
*--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_REXCESIBI INDEX 1 INTO DATA(WA_REXCESIBI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REXCESIBI>-MANDT = 1.
<REXCESIBI>-INTRENO = 1.
<REXCESIBI>-DATEFROM = 1.
<REXCESIBI>-BUKRS = 1.
<REXCESIBI>-CURRENCY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REXCESIBI-DATETO, sy-vline,
  WA_REXCESIBI-IBIAMOUNT, sy-vline,
  WA_REXCESIBI-IBICALCAMOUNT, sy-vline,
  WA_REXCESIBI-CITY, sy-vline,
  WA_REXCESIBI-IBIRATE, sy-vline,
  WA_REXCESIBI-ISMANUALAMOUNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REXCESIBI 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_REXCESIBI 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_REXCESIBI INTO WA_REXCESIBI.


*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 REDAT, internal->external for field DATETO
CALL FUNCTION 'CONVERSION_EXIT_REDAT_OUTPUT'
  EXPORTING
    input =                      WA_REXCESIBI-DATETO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REXCESIBI-DATETO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REXCESIBI-PARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REXCESIBI-PARTNER.
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_REXCESIBI_STR, 
MANDT TYPE STRING,
INTRENO TYPE STRING,
DATEFROM TYPE STRING,
BUKRS TYPE STRING,
CURRENCY TYPE STRING,
DATETO TYPE STRING,
IBIAMOUNT TYPE STRING,
IBICALCAMOUNT TYPE STRING,
CITY TYPE STRING,
IBIRATE TYPE STRING,
ISMANUALAMOUNT TYPE STRING,
VPT TYPE STRING,
TAXCATID TYPE STRING,
DISCHRGID TYPE STRING,
DISCHRGAMNT TYPE STRING,
DSCNTAPPL TYPE STRING,
SURCHRGID TYPE STRING,
SURCHRGFROM TYPE STRING,
SURCHRGAMNT TYPE STRING,
INSTDATE1 TYPE STRING,
INSTAMOUNT1 TYPE STRING,
INSTDATE2 TYPE STRING,
INSTAMOUNT2 TYPE STRING,
INSTDATE3 TYPE STRING,
INSTAMOUNT3 TYPE STRING,
INSTDATE4 TYPE STRING,
INSTAMOUNT4 TYPE STRING,
INSTDATE5 TYPE STRING,
INSTAMOUNT5 TYPE STRING,
INSTDATE6 TYPE STRING,
INSTAMOUNT6 TYPE STRING,
INSTDATE7 TYPE STRING,
INSTAMOUNT7 TYPE STRING,
INSTDATE8 TYPE STRING,
INSTAMOUNT8 TYPE STRING,
INSTDATE9 TYPE STRING,
INSTAMOUNT9 TYPE STRING,
INSTDATE10 TYPE STRING,
INSTAMOUNT10 TYPE STRING,
INSTDATE11 TYPE STRING,
INSTAMOUNT11 TYPE STRING,
INSTDATE12 TYPE STRING,
INSTAMOUNT12 TYPE STRING,
ISRECORDLOCKED TYPE STRING,
ACCTASSIGOBJNR TYPE STRING,
LIABLE_TAX TYPE STRING,
AWKEY1 TYPE STRING,
AWTYP1 TYPE STRING,
AWKEY2 TYPE STRING,
AWTYP2 TYPE STRING,
AWKEY3 TYPE STRING,
AWTYP3 TYPE STRING,
AWKEY4 TYPE STRING,
AWTYP4 TYPE STRING,
AWKEY5 TYPE STRING,
AWTYP5 TYPE STRING,
AWKEY6 TYPE STRING,
AWTYP6 TYPE STRING,
AWKEY7 TYPE STRING,
AWTYP7 TYPE STRING,
AWKEY8 TYPE STRING,
AWTYP8 TYPE STRING,
AWKEY9 TYPE STRING,
AWTYP9 TYPE STRING,
AWKEY10 TYPE STRING,
AWTYP10 TYPE STRING,
AWKEY11 TYPE STRING,
AWTYP11 TYPE STRING,
AWKEY12 TYPE STRING,
AWTYP12 TYPE STRING,
PARTNER TYPE STRING,
RERF TYPE STRING,
DERF TYPE STRING,
TERF TYPE STRING,
REHER TYPE STRING,
RBEAR TYPE STRING,
DBEAR TYPE STRING,
TBEAR TYPE STRING,
RBHER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REXCESIBI_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_REXCESIBI_STR-MANDT sy-vline 
WA_REXCESIBI_STR-INTRENO sy-vline 
WA_REXCESIBI_STR-DATEFROM sy-vline 
WA_REXCESIBI_STR-BUKRS sy-vline 
WA_REXCESIBI_STR-CURRENCY sy-vline 
WA_REXCESIBI_STR-DATETO sy-vline 
WA_REXCESIBI_STR-IBIAMOUNT sy-vline 
WA_REXCESIBI_STR-IBICALCAMOUNT sy-vline 
WA_REXCESIBI_STR-CITY sy-vline 
WA_REXCESIBI_STR-IBIRATE sy-vline 
WA_REXCESIBI_STR-ISMANUALAMOUNT sy-vline 
WA_REXCESIBI_STR-VPT sy-vline 
WA_REXCESIBI_STR-TAXCATID sy-vline 
WA_REXCESIBI_STR-DISCHRGID sy-vline 
WA_REXCESIBI_STR-DISCHRGAMNT sy-vline 
WA_REXCESIBI_STR-DSCNTAPPL sy-vline 
WA_REXCESIBI_STR-SURCHRGID sy-vline 
WA_REXCESIBI_STR-SURCHRGFROM sy-vline 
WA_REXCESIBI_STR-SURCHRGAMNT sy-vline 
WA_REXCESIBI_STR-INSTDATE1 sy-vline 
WA_REXCESIBI_STR-INSTAMOUNT1 sy-vline 
WA_REXCESIBI_STR-INSTDATE2 sy-vline 
WA_REXCESIBI_STR-INSTAMOUNT2 sy-vline 
WA_REXCESIBI_STR-INSTDATE3 sy-vline 
WA_REXCESIBI_STR-INSTAMOUNT3 sy-vline 
WA_REXCESIBI_STR-INSTDATE4 sy-vline 
WA_REXCESIBI_STR-INSTAMOUNT4 sy-vline 
WA_REXCESIBI_STR-INSTDATE5 sy-vline 
WA_REXCESIBI_STR-INSTAMOUNT5 sy-vline 
WA_REXCESIBI_STR-INSTDATE6 sy-vline 
WA_REXCESIBI_STR-INSTAMOUNT6 sy-vline 
WA_REXCESIBI_STR-INSTDATE7 sy-vline 
WA_REXCESIBI_STR-INSTAMOUNT7 sy-vline 
WA_REXCESIBI_STR-INSTDATE8 sy-vline 
WA_REXCESIBI_STR-INSTAMOUNT8 sy-vline 
WA_REXCESIBI_STR-INSTDATE9 sy-vline 
WA_REXCESIBI_STR-INSTAMOUNT9 sy-vline 
WA_REXCESIBI_STR-INSTDATE10 sy-vline 
WA_REXCESIBI_STR-INSTAMOUNT10 sy-vline 
WA_REXCESIBI_STR-INSTDATE11 sy-vline 
WA_REXCESIBI_STR-INSTAMOUNT11 sy-vline 
WA_REXCESIBI_STR-INSTDATE12 sy-vline 
WA_REXCESIBI_STR-INSTAMOUNT12 sy-vline 
WA_REXCESIBI_STR-ISRECORDLOCKED sy-vline 
WA_REXCESIBI_STR-ACCTASSIGOBJNR sy-vline 
WA_REXCESIBI_STR-LIABLE_TAX sy-vline 
WA_REXCESIBI_STR-AWKEY1 sy-vline 
WA_REXCESIBI_STR-AWTYP1 sy-vline 
WA_REXCESIBI_STR-AWKEY2 sy-vline 
WA_REXCESIBI_STR-AWTYP2 sy-vline 
WA_REXCESIBI_STR-AWKEY3 sy-vline 
WA_REXCESIBI_STR-AWTYP3 sy-vline 
WA_REXCESIBI_STR-AWKEY4 sy-vline 
WA_REXCESIBI_STR-AWTYP4 sy-vline 
WA_REXCESIBI_STR-AWKEY5 sy-vline 
WA_REXCESIBI_STR-AWTYP5 sy-vline 
WA_REXCESIBI_STR-AWKEY6 sy-vline 
WA_REXCESIBI_STR-AWTYP6 sy-vline 
WA_REXCESIBI_STR-AWKEY7 sy-vline 
WA_REXCESIBI_STR-AWTYP7 sy-vline 
WA_REXCESIBI_STR-AWKEY8 sy-vline 
WA_REXCESIBI_STR-AWTYP8 sy-vline 
WA_REXCESIBI_STR-AWKEY9 sy-vline 
WA_REXCESIBI_STR-AWTYP9 sy-vline 
WA_REXCESIBI_STR-AWKEY10 sy-vline 
WA_REXCESIBI_STR-AWTYP10 sy-vline 
WA_REXCESIBI_STR-AWKEY11 sy-vline 
WA_REXCESIBI_STR-AWTYP11 sy-vline 
WA_REXCESIBI_STR-AWKEY12 sy-vline 
WA_REXCESIBI_STR-AWTYP12 sy-vline 
WA_REXCESIBI_STR-PARTNER sy-vline 
WA_REXCESIBI_STR-RERF sy-vline 
WA_REXCESIBI_STR-DERF sy-vline 
WA_REXCESIBI_STR-TERF sy-vline 
WA_REXCESIBI_STR-REHER sy-vline 
WA_REXCESIBI_STR-RBEAR sy-vline 
WA_REXCESIBI_STR-DBEAR sy-vline 
WA_REXCESIBI_STR-TBEAR sy-vline 
WA_REXCESIBI_STR-RBHER sy-vline      INTO ld_text SEPARATED BY SPACE.

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