ABAP Select data from SAP table REIS_MMCAP_DETAIL_L into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP REIS_MMCAP_DETAIL_L 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_MMCAP_DETAIL_L. 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_MMCAP_DETAIL_L 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_MMCAP_DETAIL_L TYPE STANDARD TABLE OF REIS_MMCAP_DETAIL_L,
      WA_REIS_MMCAP_DETAIL_L TYPE REIS_MMCAP_DETAIL_L,
      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_MMCAP_DETAIL_L> TYPE REIS_MMCAP_DETAIL_L.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REIS_MMCAP_DETAIL_L
*  INTO TABLE @DATA(IT_REIS_MMCAP_DETAIL_L2).
*--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_MMCAP_DETAIL_L INDEX 1 INTO DATA(WA_REIS_MMCAP_DETAIL_L2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REIS_MMCAP_DETAIL_L>-MANDT = 1.
<REIS_MMCAP_DETAIL_L>-INTRENO = 1.
<REIS_MMCAP_DETAIL_L>-MANDATEID = 1.
<REIS_MMCAP_DETAIL_L>-SEQNO = 1.
<REIS_MMCAP_DETAIL_L>-SEQNO_HBACC = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REIS_MMCAP_DETAIL_L-BUKRS, sy-vline,
  WA_REIS_MMCAP_DETAIL_L-PERIODFROM, sy-vline,
  WA_REIS_MMCAP_DETAIL_L-PERIODTO, sy-vline,
  WA_REIS_MMCAP_DETAIL_L-HBKID, sy-vline,
  WA_REIS_MMCAP_DETAIL_L-HKTID, sy-vline,
  WA_REIS_MMCAP_DETAIL_L-HKONT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REIS_MMCAP_DETAIL_L 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_MMCAP_DETAIL_L 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_MMCAP_DETAIL_L INTO WA_REIS_MMCAP_DETAIL_L.


*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 PERIODTO
CALL FUNCTION 'CONVERSION_EXIT_REDAT_OUTPUT'
  EXPORTING
    input =                      WA_REIS_MMCAP_DETAIL_L-PERIODTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_MMCAP_DETAIL_L-PERIODTO.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit CUNIT, internal->external for field MEASUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_REIS_MMCAP_DETAIL_L-MEASUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_MMCAP_DETAIL_L-MEASUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEASUNIT_RO
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_REIS_MMCAP_DETAIL_L-MEASUNIT_RO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_MMCAP_DETAIL_L-MEASUNIT_RO.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit SXIDN, internal->external for field ISSMTP_ADDR
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_REIS_MMCAP_DETAIL_L-ISSMTP_ADDR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_MMCAP_DETAIL_L-ISSMTP_ADDR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GEN_PARTNER1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REIS_MMCAP_DETAIL_L-GEN_PARTNER1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_MMCAP_DETAIL_L-GEN_PARTNER1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GEN_PARTNER2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REIS_MMCAP_DETAIL_L-GEN_PARTNER2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_MMCAP_DETAIL_L-GEN_PARTNER2.
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_MMCAP_DETAIL_L_STR, 
MANDT TYPE STRING,
INTRENO TYPE STRING,
MANDATEID TYPE STRING,
SEQNO TYPE STRING,
SEQNO_HBACC TYPE STRING,
BUKRS TYPE STRING,
PERIODFROM TYPE STRING,
PERIODTO TYPE STRING,
HBKID TYPE STRING,
HKTID TYPE STRING,
HKONT TYPE STRING,
FLOWTYPE TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
BUZEI TYPE STRING,
PSTNGDATE TYPE STRING,
SGTXT TYPE STRING,
CURRENCY TYPE STRING,
AMOUNT_BEG TYPE STRING,
AMOUNT TYPE STRING,
AMOUNT_ACT TYPE STRING,
AMOUNT_END TYPE STRING,
AMOUNT_MAND_BEG TYPE STRING,
AMOUNT_MAND TYPE STRING,
AMOUNT_MAND_ACT TYPE STRING,
AMOUNT_MAND_END TYPE STRING,
INTRENO_CN TYPE STRING,
INTRENO_RO TYPE STRING,
MEAS TYPE STRING,
MEASVALUE TYPE STRING,
MEASUNIT TYPE STRING,
RECNPERCENT TYPE STRING,
MEASVALUE_RO TYPE STRING,
MEASUNIT_RO TYPE STRING,
AMOUNT_RO_BEG TYPE STRING,
AMOUNT_RO TYPE STRING,
AMOUNT_RO_ACT TYPE STRING,
AMOUNT_RO_END TYPE STRING,
XMANDATE TYPE STRING,
XAUTHGRP TYPE STRING,
VALIDITY TYPE STRING,
XFLOWTYPE TYPE STRING,
XGLACCOUNTS TYPE STRING,
XGLACCOUNTL TYPE STRING,
XMMEAS TYPE STRING,
RECNNR TYPE STRING,
RECNTXT TYPE STRING,
XMETXT TYPE STRING,
XTXT TYPE STRING,
ISROLE TYPE STRING,
ISXROLE TYPE STRING,
ISPARTNER TYPE STRING,
ISXPARTNER TYPE STRING,
ISTEL_NUMBER_LONG TYPE STRING,
ISFAX_NUMBER_LONG TYPE STRING,
ISSMTP_ADDR TYPE STRING,
RECISVALIDFROM TYPE STRING,
RECISVALIDTO TYPE STRING,
GEN_OBJTYPE TYPE STRING,
GEN_OBJNR TYPE STRING,
GEN_CONTRACT TYPE STRING,
GEN_PARTNER1 TYPE STRING,
GEN_PARTNER2 TYPE STRING,
ALVROWS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REIS_MMCAP_DETAIL_L_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_MMCAP_DETAIL_L_STR-MANDT sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-INTRENO sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-MANDATEID sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-SEQNO sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-SEQNO_HBACC sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-BUKRS sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-PERIODFROM sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-PERIODTO sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-HBKID sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-HKTID sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-HKONT sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-FLOWTYPE sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-BELNR sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-GJAHR sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-BUZEI sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-PSTNGDATE sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-SGTXT sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-CURRENCY sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-AMOUNT_BEG sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-AMOUNT sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-AMOUNT_ACT sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-AMOUNT_END sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-AMOUNT_MAND_BEG sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-AMOUNT_MAND sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-AMOUNT_MAND_ACT sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-AMOUNT_MAND_END sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-INTRENO_CN sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-INTRENO_RO sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-MEAS sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-MEASVALUE sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-MEASUNIT sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-RECNPERCENT sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-MEASVALUE_RO sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-MEASUNIT_RO sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-AMOUNT_RO_BEG sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-AMOUNT_RO sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-AMOUNT_RO_ACT sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-AMOUNT_RO_END sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-XMANDATE sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-XAUTHGRP sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-VALIDITY sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-XFLOWTYPE sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-XGLACCOUNTS sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-XGLACCOUNTL sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-XMMEAS sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-RECNNR sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-RECNTXT sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-XMETXT sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-XTXT sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-ISROLE sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-ISXROLE sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-ISPARTNER sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-ISXPARTNER sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-ISTEL_NUMBER_LONG sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-ISFAX_NUMBER_LONG sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-ISSMTP_ADDR sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-RECISVALIDFROM sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-RECISVALIDTO sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-GEN_OBJTYPE sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-GEN_OBJNR sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-GEN_CONTRACT sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-GEN_PARTNER1 sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-GEN_PARTNER2 sy-vline 
WA_REIS_MMCAP_DETAIL_L_STR-ALVROWS sy-vline      INTO ld_text SEPARATED BY SPACE.

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