ABAP Select data from SAP table CRMS_FM_ACL_ACCDOCPOST_ERP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMS_FM_ACL_ACCDOCPOST_ERP
*  INTO TABLE @DATA(IT_CRMS_FM_ACL_ACCDOCPOST_ERP2).
*--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_CRMS_FM_ACL_ACCDOCPOST_ERP INDEX 1 INTO DATA(WA_CRMS_FM_ACL_ACCDOCPOST_ERP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMS_FM_ACL_ACCDOCPOST_ERP>-DOCUMENTHEADER = 1.
<CRMS_FM_ACL_ACCDOCPOST_ERP>-OBJ_TYPE = 1.
<CRMS_FM_ACL_ACCDOCPOST_ERP>-OBJ_KEY = 1.
<CRMS_FM_ACL_ACCDOCPOST_ERP>-OBJ_SYS = 1.
<CRMS_FM_ACL_ACCDOCPOST_ERP>-BUS_ACT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMS_FM_ACL_ACCDOCPOST_ERP-USERNAME, sy-vline,
  WA_CRMS_FM_ACL_ACCDOCPOST_ERP-HEADER_TXT, sy-vline,
  WA_CRMS_FM_ACL_ACCDOCPOST_ERP-COMP_CODE, sy-vline,
  WA_CRMS_FM_ACL_ACCDOCPOST_ERP-DOC_DATE, sy-vline,
  WA_CRMS_FM_ACL_ACCDOCPOST_ERP-PSTNG_DATE, sy-vline,
  WA_CRMS_FM_ACL_ACCDOCPOST_ERP-TRANS_DATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMS_FM_ACL_ACCDOCPOST_ERP 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_CRMS_FM_ACL_ACCDOCPOST_ERP 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_CRMS_FM_ACL_ACCDOCPOST_ERP INTO WA_CRMS_FM_ACL_ACCDOCPOST_ERP.


*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 OBJ_SYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRMS_FM_ACL_ACCDOCPOST_ERP-OBJ_SYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMS_FM_ACL_ACCDOCPOST_ERP-OBJ_SYS.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field GLO_BP1_HD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRMS_FM_ACL_ACCDOCPOST_ERP-GLO_BP1_HD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMS_FM_ACL_ACCDOCPOST_ERP-GLO_BP1_HD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GLO_BP2_HD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRMS_FM_ACL_ACCDOCPOST_ERP-GLO_BP2_HD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMS_FM_ACL_ACCDOCPOST_ERP-GLO_BP2_HD.
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_CRMS_FM_ACL_ACCDOCPOST_ERP_STR, 
DOCUMENTHEADER TYPE STRING,
OBJ_TYPE TYPE STRING,
OBJ_KEY TYPE STRING,
OBJ_SYS TYPE STRING,
BUS_ACT TYPE STRING,
USERNAME TYPE STRING,
HEADER_TXT TYPE STRING,
COMP_CODE TYPE STRING,
DOC_DATE TYPE STRING,
PSTNG_DATE TYPE STRING,
TRANS_DATE TYPE STRING,
FISC_YEAR TYPE STRING,
FIS_PERIOD TYPE STRING,
DOC_TYPE TYPE STRING,
REF_DOC_NO TYPE STRING,
AC_DOC_NO TYPE STRING,
OBJ_KEY_R TYPE STRING,
REASON_REV TYPE STRING,
COMPO_ACC TYPE STRING,
REF_DOC_NO_LONG TYPE STRING,
ACC_PRINCIPLE TYPE STRING,
NEG_POSTNG TYPE STRING,
OBJ_KEY_INV TYPE STRING,
BILL_CATEGORY TYPE STRING,
VATDATE TYPE STRING,
INVOICE_REC_DATE TYPE STRING,
ECS_ENV TYPE STRING,
PARTIAL_REV TYPE STRING,
DOC_STATUS TYPE STRING,
TAX_CALC_DATE TYPE STRING,
GLO_REF1_HD TYPE STRING,
GLO_DAT1_HD TYPE STRING,
GLO_REF2_HD TYPE STRING,
GLO_DAT2_HD TYPE STRING,
GLO_REF3_HD TYPE STRING,
GLO_DAT3_HD TYPE STRING,
GLO_REF4_HD TYPE STRING,
GLO_DAT4_HD TYPE STRING,
GLO_REF5_HD TYPE STRING,
GLO_DAT5_HD TYPE STRING,
GLO_BP1_HD TYPE STRING,
GLO_BP2_HD TYPE STRING,
EV_POSTNG_CTRL TYPE STRING,
LEDGER_GROUP TYPE STRING,
PLANNED_REV_DATE TYPE STRING,
BUS_TRANSACTION_TYPE TYPE STRING,
CLOSINGSTEP TYPE STRING,
FULFILLDATE TYPE STRING,
ACCOUNTGL_T TYPE STRING,
CURRENCYAMOUNT_T TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMS_FM_ACL_ACCDOCPOST_ERP_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_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-DOCUMENTHEADER sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-OBJ_TYPE sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-OBJ_KEY sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-OBJ_SYS sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-BUS_ACT sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-USERNAME sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-HEADER_TXT sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-COMP_CODE sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-DOC_DATE sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-PSTNG_DATE sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-TRANS_DATE sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-FISC_YEAR sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-FIS_PERIOD sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-DOC_TYPE sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-REF_DOC_NO sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-AC_DOC_NO sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-OBJ_KEY_R sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-REASON_REV sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-COMPO_ACC sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-REF_DOC_NO_LONG sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-ACC_PRINCIPLE sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-NEG_POSTNG sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-OBJ_KEY_INV sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-BILL_CATEGORY sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-VATDATE sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-INVOICE_REC_DATE sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-ECS_ENV sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-PARTIAL_REV sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-DOC_STATUS sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-TAX_CALC_DATE sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-GLO_REF1_HD sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-GLO_DAT1_HD sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-GLO_REF2_HD sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-GLO_DAT2_HD sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-GLO_REF3_HD sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-GLO_DAT3_HD sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-GLO_REF4_HD sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-GLO_DAT4_HD sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-GLO_REF5_HD sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-GLO_DAT5_HD sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-GLO_BP1_HD sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-GLO_BP2_HD sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-EV_POSTNG_CTRL sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-LEDGER_GROUP sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-PLANNED_REV_DATE sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-BUS_TRANSACTION_TYPE sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-CLOSINGSTEP sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-FULFILLDATE sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-ACCOUNTGL_T sy-vline 
WA_CRMS_FM_ACL_ACCDOCPOST_ERP_STR-CURRENCYAMOUNT_T sy-vline      INTO ld_text SEPARATED BY SPACE.

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