ABAP Select data from SAP table REIS_CASHFLOW_TRAN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REIS_CASHFLOW_TRAN
*  INTO TABLE @DATA(IT_REIS_CASHFLOW_TRAN2).
*--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_REIS_CASHFLOW_TRAN INDEX 1 INTO DATA(WA_REIS_CASHFLOW_TRAN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REIS_CASHFLOW_TRAN>-OBJNR = 1.
<REIS_CASHFLOW_TRAN>-OBJTYPE = 1.
<REIS_CASHFLOW_TRAN>-BUKRS = 1.
<REIS_CASHFLOW_TRAN>-SWENR = 1.
<REIS_CASHFLOW_TRAN>-SGENR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REIS_CASHFLOW_TRAN-SGRNR, sy-vline,
  WA_REIS_CASHFLOW_TRAN-SMENR, sy-vline,
  WA_REIS_CASHFLOW_TRAN-RECNNR, sy-vline,
  WA_REIS_CASHFLOW_TRAN-FISCVAR, sy-vline,
  WA_REIS_CASHFLOW_TRAN-FISCPER, sy-vline,
  WA_REIS_CASHFLOW_TRAN-DBERVON, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REIS_CASHFLOW_TRAN 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_REIS_CASHFLOW_TRAN 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_REIS_CASHFLOW_TRAN INTO WA_REIS_CASHFLOW_TRAN.


*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 SWENR, internal->external for field SWENR
CALL FUNCTION 'CONVERSION_EXIT_SWENR_OUTPUT'
  EXPORTING
    input =                      WA_REIS_CASHFLOW_TRAN-SWENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_CASHFLOW_TRAN-SWENR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SGENR, internal->external for field SGENR
CALL FUNCTION 'CONVERSION_EXIT_SGENR_OUTPUT'
  EXPORTING
    input =                      WA_REIS_CASHFLOW_TRAN-SGENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_CASHFLOW_TRAN-SGENR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SGRNR, internal->external for field SGRNR
CALL FUNCTION 'CONVERSION_EXIT_SGRNR_OUTPUT'
  EXPORTING
    input =                      WA_REIS_CASHFLOW_TRAN-SGRNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_CASHFLOW_TRAN-SGRNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SMENR, internal->external for field SMENR
CALL FUNCTION 'CONVERSION_EXIT_SMENR_OUTPUT'
  EXPORTING
    input =                      WA_REIS_CASHFLOW_TRAN-SMENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_CASHFLOW_TRAN-SMENR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RECNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REIS_CASHFLOW_TRAN-RECNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_CASHFLOW_TRAN-RECNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI7, internal->external for field FISCPER
CALL FUNCTION 'CONVERSION_EXIT_PERI7_OUTPUT'
  EXPORTING
    input =                      WA_REIS_CASHFLOW_TRAN-FISCPER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_CASHFLOW_TRAN-FISCPER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REIS_CASHFLOW_TRAN-PARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_CASHFLOW_TRAN-PARTNER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REIS_CASHFLOW_TRAN-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_CASHFLOW_TRAN-KOSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REIS_CASHFLOW_TRAN-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_CASHFLOW_TRAN-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field POSID
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_REIS_CASHFLOW_TRAN-POSID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_CASHFLOW_TRAN-POSID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CONDTYPE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REIS_CASHFLOW_TRAN-CONDTYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_CASHFLOW_TRAN-CONDTYPE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BOOK_FLOWTYPE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REIS_CASHFLOW_TRAN-BOOK_FLOWTYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_CASHFLOW_TRAN-BOOK_FLOWTYPE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BOOK_REFFLOWREL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REIS_CASHFLOW_TRAN-BOOK_REFFLOWREL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_CASHFLOW_TRAN-BOOK_REFFLOWREL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANLN1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REIS_CASHFLOW_TRAN-ANLN1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_CASHFLOW_TRAN-ANLN1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANLN2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REIS_CASHFLOW_TRAN-ANLN2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_CASHFLOW_TRAN-ANLN2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TERMNO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REIS_CASHFLOW_TRAN-TERMNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_CASHFLOW_TRAN-TERMNO.
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_REIS_CASHFLOW_TRAN_STR, 
OBJNR TYPE STRING,
OBJTYPE TYPE STRING,
BUKRS TYPE STRING,
SWENR TYPE STRING,
SGENR TYPE STRING,
SGRNR TYPE STRING,
SMENR TYPE STRING,
RECNNR TYPE STRING,
FISCVAR TYPE STRING,
FISCPER TYPE STRING,
DBERVON TYPE STRING,
DBERBIS TYPE STRING,
DVALUT TYPE STRING,
DFAELL TYPE STRING,
DBPERIOD TYPE STRING,
DEPERIOD TYPE STRING,
TAXTYPE TYPE STRING,
TAXGROUP TYPE STRING,
TXJCD TYPE STRING,
PARTNER TYPE STRING,
PARTNEROBJNR TYPE STRING,
KOKRS TYPE STRING,
KOSTL TYPE STRING,
AUFNR TYPE STRING,
POSID TYPE STRING,
CONDTYPE TYPE STRING,
POSTINGDATE TYPE STRING,
DOCUMENTDATE TYPE STRING,
BOOK_FLOWTYPE TYPE STRING,
BOOK_REFFLOWREL TYPE STRING,
CCNETAMOUNT TYPE STRING,
CCGROSSAMOUNT TYPE STRING,
CONDCURR TYPE STRING,
CFSTATUS TYPE STRING,
CFORIGIN TYPE STRING,
RECNDPO TYPE STRING,
RECNENDABS TYPE STRING,
ISACTIVECN TYPE STRING,
ROCFGEN TYPE STRING,
BUKRSCN TYPE STRING,
OBJNRCN TYPE STRING,
BUKRSOBJ TYPE STRING,
ANLN1 TYPE STRING,
ANLN2 TYPE STRING,
CERULE TYPE STRING,
CFTYPE TYPE STRING,
INTRENO TYPE STRING,
CFPAYGUID TYPE STRING,
CFOBJGUID TYPE STRING,
CONDGUID TYPE STRING,
CONDVALIDFROM TYPE STRING,
REFGUID TYPE STRING,
CALCDUEDATE TYPE STRING,
LCNETAMOUNT TYPE STRING,
LCGROSSAMOUNT TYPE STRING,
LOCALCURR TYPE STRING,
CFGUID TYPE STRING,
DUEDATE TYPE STRING,
TERMNO TYPE STRING,
RULEGUID TYPE STRING,
PROCESSGUID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REIS_CASHFLOW_TRAN_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_REIS_CASHFLOW_TRAN_STR-OBJNR sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-OBJTYPE sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-BUKRS sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-SWENR sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-SGENR sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-SGRNR sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-SMENR sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-RECNNR sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-FISCVAR sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-FISCPER sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-DBERVON sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-DBERBIS sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-DVALUT sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-DFAELL sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-DBPERIOD sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-DEPERIOD sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-TAXTYPE sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-TAXGROUP sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-TXJCD sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-PARTNER sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-PARTNEROBJNR sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-KOKRS sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-KOSTL sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-AUFNR sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-POSID sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-CONDTYPE sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-POSTINGDATE sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-DOCUMENTDATE sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-BOOK_FLOWTYPE sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-BOOK_REFFLOWREL sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-CCNETAMOUNT sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-CCGROSSAMOUNT sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-CONDCURR sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-CFSTATUS sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-CFORIGIN sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-RECNDPO sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-RECNENDABS sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-ISACTIVECN sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-ROCFGEN sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-BUKRSCN sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-OBJNRCN sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-BUKRSOBJ sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-ANLN1 sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-ANLN2 sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-CERULE sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-CFTYPE sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-INTRENO sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-CFPAYGUID sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-CFOBJGUID sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-CONDGUID sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-CONDVALIDFROM sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-REFGUID sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-CALCDUEDATE sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-LCNETAMOUNT sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-LCGROSSAMOUNT sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-LOCALCURR sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-CFGUID sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-DUEDATE sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-TERMNO sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-RULEGUID sy-vline 
WA_REIS_CASHFLOW_TRAN_STR-PROCESSGUID sy-vline      INTO ld_text SEPARATED BY SPACE.

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