ABAP Select data from SAP table YCRM01_S_EXTR_DOCHD into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP YCRM01_S_EXTR_DOCHD 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 YCRM01_S_EXTR_DOCHD. 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 YCRM01_S_EXTR_DOCHD 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_YCRM01_S_EXTR_DOCHD TYPE STANDARD TABLE OF YCRM01_S_EXTR_DOCHD,
      WA_YCRM01_S_EXTR_DOCHD TYPE YCRM01_S_EXTR_DOCHD,
      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: <YCRM01_S_EXTR_DOCHD> TYPE YCRM01_S_EXTR_DOCHD.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_YCRM01_S_EXTR_DOCHD.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM YCRM01_S_EXTR_DOCHD
  INTO TABLE IT_YCRM01_S_EXTR_DOCHD.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM YCRM01_S_EXTR_DOCHD
*  INTO TABLE @DATA(IT_YCRM01_S_EXTR_DOCHD2).
*--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_YCRM01_S_EXTR_DOCHD INDEX 1 INTO DATA(WA_YCRM01_S_EXTR_DOCHD2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_YCRM01_S_EXTR_DOCHD ASSIGNING <YCRM01_S_EXTR_DOCHD>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<YCRM01_S_EXTR_DOCHD>-POST_YEAR = 1.
<YCRM01_S_EXTR_DOCHD>-DOC_ID = 1.
<YCRM01_S_EXTR_DOCHD>-DOC_TYPE = 1.
<YCRM01_S_EXTR_DOCHD>-FLG_REVERSOR = 1.
<YCRM01_S_EXTR_DOCHD>-FLG_NOSETTLEMENT = 1.

ENDLOOP.

LOOP AT IT_YCRM01_S_EXTR_DOCHD INTO WA_YCRM01_S_EXTR_DOCHD.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_YCRM01_S_EXTR_DOCHD-FLG_NORESETTLE, sy-vline,
  WA_YCRM01_S_EXTR_DOCHD-FLG_FUTURECHECK, sy-vline,
  WA_YCRM01_S_EXTR_DOCHD-BUSOBJ_TYPE, sy-vline,
  WA_YCRM01_S_EXTR_DOCHD-BUSOBJ_ID, sy-vline,
  WA_YCRM01_S_EXTR_DOCHD-BUSOBJ_VERS, sy-vline,
  WA_YCRM01_S_EXTR_DOCHD-BUSOBJ_VERSDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_YCRM01_S_EXTR_DOCHD 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_YCRM01_S_EXTR_DOCHD 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_YCRM01_S_EXTR_DOCHD INTO WA_YCRM01_S_EXTR_DOCHD.


*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 ALPHA, internal->external for field DOC_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_YCRM01_S_EXTR_DOCHD-DOC_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_YCRM01_S_EXTR_DOCHD-DOC_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit BOBJ0, internal->external for field BUSOBJ_TYPE
CALL FUNCTION 'CONVERSION_EXIT_BOBJ0_OUTPUT'
  EXPORTING
    input =                      WA_YCRM01_S_EXTR_DOCHD-BUSOBJ_TYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_YCRM01_S_EXTR_DOCHD-BUSOBJ_TYPE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit BOBJ1, internal->external for field BUSOBJ_ID
CALL FUNCTION 'CONVERSION_EXIT_BOBJ1_OUTPUT'
  EXPORTING
    input =                      WA_YCRM01_S_EXTR_DOCHD-BUSOBJ_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_YCRM01_S_EXTR_DOCHD-BUSOBJ_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field BUSOBJ_VERSDATE
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_YCRM01_S_EXTR_DOCHD-BUSOBJ_VERSDATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_YCRM01_S_EXTR_DOCHD-BUSOBJ_VERSDATE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REM_BUSCASE_TYP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_YCRM01_S_EXTR_DOCHD-REM_BUSCASE_TYP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_YCRM01_S_EXTR_DOCHD-REM_BUSCASE_TYP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REM_BUSCASE_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_YCRM01_S_EXTR_DOCHD-REM_BUSCASE_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_YCRM01_S_EXTR_DOCHD-REM_BUSCASE_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TRI_BUSCASE_TYP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_YCRM01_S_EXTR_DOCHD-TRI_BUSCASE_TYP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_YCRM01_S_EXTR_DOCHD-TRI_BUSCASE_TYP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TRI_BUSCASE_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_YCRM01_S_EXTR_DOCHD-TRI_BUSCASE_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_YCRM01_S_EXTR_DOCHD-TRI_BUSCASE_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PAY_REF_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_YCRM01_S_EXTR_DOCHD-PAY_REF_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_YCRM01_S_EXTR_DOCHD-PAY_REF_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REV_DOC_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_YCRM01_S_EXTR_DOCHD-REV_DOC_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_YCRM01_S_EXTR_DOCHD-REV_DOC_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field CHG_TIMESTAMP
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_YCRM01_S_EXTR_DOCHD-CHG_TIMESTAMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_YCRM01_S_EXTR_DOCHD-CHG_TIMESTAMP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field UPD_TIMESTAMP
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_YCRM01_S_EXTR_DOCHD-UPD_TIMESTAMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_YCRM01_S_EXTR_DOCHD-UPD_TIMESTAMP.
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_YCRM01_S_EXTR_DOCHD_STR, 
POST_YEAR TYPE STRING,
DOC_ID TYPE STRING,
DOC_TYPE TYPE STRING,
FLG_REVERSOR TYPE STRING,
FLG_NOSETTLEMENT TYPE STRING,
FLG_NORESETTLE TYPE STRING,
FLG_FUTURECHECK TYPE STRING,
BUSOBJ_TYPE TYPE STRING,
BUSOBJ_ID TYPE STRING,
BUSOBJ_VERS TYPE STRING,
BUSOBJ_VERSDATE TYPE STRING,
REM_BUSCASE_TYP TYPE STRING,
REM_BUSCASE_ID TYPE STRING,
TRI_BUSCASE_TYP TYPE STRING,
TRI_BUSCASE_ID TYPE STRING,
TRGCAS_TYPE TYPE STRING,
TRGCASAGR_ID TYPE STRING,
TRGCASRU_ID TYPE STRING,
PAY_REF_ID TYPE STRING,
REV_DOC_ID TYPE STRING,
REV_POST_YEAR TYPE STRING,
CHG_TIMESTAMP TYPE STRING,
TRI_METH_TYP TYPE STRING,
FLG_REVERSED TYPE STRING,
STATUS_POS TYPE STRING,
STATUS_WORK TYPE STRING,
UPD_TIMESTAMP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_YCRM01_S_EXTR_DOCHD_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_YCRM01_S_EXTR_DOCHD_STR-POST_YEAR sy-vline 
WA_YCRM01_S_EXTR_DOCHD_STR-DOC_ID sy-vline 
WA_YCRM01_S_EXTR_DOCHD_STR-DOC_TYPE sy-vline 
WA_YCRM01_S_EXTR_DOCHD_STR-FLG_REVERSOR sy-vline 
WA_YCRM01_S_EXTR_DOCHD_STR-FLG_NOSETTLEMENT sy-vline 
WA_YCRM01_S_EXTR_DOCHD_STR-FLG_NORESETTLE sy-vline 
WA_YCRM01_S_EXTR_DOCHD_STR-FLG_FUTURECHECK sy-vline 
WA_YCRM01_S_EXTR_DOCHD_STR-BUSOBJ_TYPE sy-vline 
WA_YCRM01_S_EXTR_DOCHD_STR-BUSOBJ_ID sy-vline 
WA_YCRM01_S_EXTR_DOCHD_STR-BUSOBJ_VERS sy-vline 
WA_YCRM01_S_EXTR_DOCHD_STR-BUSOBJ_VERSDATE sy-vline 
WA_YCRM01_S_EXTR_DOCHD_STR-REM_BUSCASE_TYP sy-vline 
WA_YCRM01_S_EXTR_DOCHD_STR-REM_BUSCASE_ID sy-vline 
WA_YCRM01_S_EXTR_DOCHD_STR-TRI_BUSCASE_TYP sy-vline 
WA_YCRM01_S_EXTR_DOCHD_STR-TRI_BUSCASE_ID sy-vline 
WA_YCRM01_S_EXTR_DOCHD_STR-TRGCAS_TYPE sy-vline 
WA_YCRM01_S_EXTR_DOCHD_STR-TRGCASAGR_ID sy-vline 
WA_YCRM01_S_EXTR_DOCHD_STR-TRGCASRU_ID sy-vline 
WA_YCRM01_S_EXTR_DOCHD_STR-PAY_REF_ID sy-vline 
WA_YCRM01_S_EXTR_DOCHD_STR-REV_DOC_ID sy-vline 
WA_YCRM01_S_EXTR_DOCHD_STR-REV_POST_YEAR sy-vline 
WA_YCRM01_S_EXTR_DOCHD_STR-CHG_TIMESTAMP sy-vline 
WA_YCRM01_S_EXTR_DOCHD_STR-TRI_METH_TYP sy-vline 
WA_YCRM01_S_EXTR_DOCHD_STR-FLG_REVERSED sy-vline 
WA_YCRM01_S_EXTR_DOCHD_STR-STATUS_POS sy-vline 
WA_YCRM01_S_EXTR_DOCHD_STR-STATUS_WORK sy-vline 
WA_YCRM01_S_EXTR_DOCHD_STR-UPD_TIMESTAMP sy-vline      INTO ld_text SEPARATED BY SPACE.

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