ABAP Select data from SAP table CRMT_GRM_BTX_HEADER into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMT_GRM_BTX_HEADER
*  INTO TABLE @DATA(IT_CRMT_GRM_BTX_HEADER2).
*--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_CRMT_GRM_BTX_HEADER INDEX 1 INTO DATA(WA_CRMT_GRM_BTX_HEADER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMT_GRM_BTX_HEADER>-GUID = 1.
<CRMT_GRM_BTX_HEADER>-OBJECT_ID = 1.
<CRMT_GRM_BTX_HEADER>-OBJECT_TYPE = 1.
<CRMT_GRM_BTX_HEADER>-DESCRIPTION = 1.
<CRMT_GRM_BTX_HEADER>-PROCESS_TYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMT_GRM_BTX_HEADER-POSTING_DATE, sy-vline,
  WA_CRMT_GRM_BTX_HEADER-CREATED_AT, sy-vline,
  WA_CRMT_GRM_BTX_HEADER-CREATED_BY, sy-vline,
  WA_CRMT_GRM_BTX_HEADER-CHANGED_AT, sy-vline,
  WA_CRMT_GRM_BTX_HEADER-CHANGED_BY, sy-vline,
  WA_CRMT_GRM_BTX_HEADER-EXTERNAL_REF, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMT_GRM_BTX_HEADER 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_CRMT_GRM_BTX_HEADER 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_CRMT_GRM_BTX_HEADER INTO WA_CRMT_GRM_BTX_HEADER.


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

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

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

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

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

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

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

*Conversion exit TSTPS, internal->external for field BILL_DATE
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_CRMT_GRM_BTX_HEADER-BILL_DATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_GRM_BTX_HEADER-BILL_DATE.
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_CRMT_GRM_BTX_HEADER_STR, 
GUID TYPE STRING,
OBJECT_ID TYPE STRING,
OBJECT_TYPE TYPE STRING,
DESCRIPTION TYPE STRING,
PROCESS_TYPE TYPE STRING,
POSTING_DATE TYPE STRING,
CREATED_AT TYPE STRING,
CREATED_BY TYPE STRING,
CHANGED_AT TYPE STRING,
CHANGED_BY TYPE STRING,
EXTERNAL_REF TYPE STRING,
REF_DATE TYPE STRING,
CURRENCY TYPE STRING,
HIGHEST_ITEM_NO TYPE STRING,
VALID_FROM TYPE STRING,
TZONE_FROM TYPE STRING,
VALID_TO TYPE STRING,
TZONE_TO TYPE STRING,
EXPENSE_DATE TYPE STRING,
GRANTEE TYPE STRING,
PAYEE TYPE STRING,
CONTACT_PERSON TYPE STRING,
PERSON_RESPONSIBLE TYPE STRING,
SALES_ORG TYPE STRING,
SERVICE_ORG TYPE STRING,
DIS_CHANNEL TYPE STRING,
DIVISION TYPE STRING,
SALES_ORG_RESP TYPE STRING,
STATUS_REJECTED TYPE STRING,
STATUS_CANCELLED TYPE STRING,
STATUS_ERROR TYPE STRING,
STATUS_COMPLETED TYPE STRING,
STATUS_RELEASED TYPE STRING,
STATUS_ARCHIVED TYPE STRING,
STATUS_TRANSFERRED TYPE STRING,
STATUS_TRANSFERRING TYPE STRING,
STATUS_TRANSFER_FAILED TYPE STRING,
STATUS_CALLED_OFF TYPE STRING,
CURR_SYS_STATUS TYPE STRING,
CURR_USER_STATUS TYPE STRING,
BILL_DATE TYPE STRING,
BILLING_BLOCK TYPE STRING,
BILLING_BLOCK_REASON TYPE STRING,
BUAG_GUID TYPE STRING,
DOC_FLOW TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMT_GRM_BTX_HEADER_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_CRMT_GRM_BTX_HEADER_STR-GUID sy-vline 
WA_CRMT_GRM_BTX_HEADER_STR-OBJECT_ID sy-vline 
WA_CRMT_GRM_BTX_HEADER_STR-OBJECT_TYPE sy-vline 
WA_CRMT_GRM_BTX_HEADER_STR-DESCRIPTION sy-vline 
WA_CRMT_GRM_BTX_HEADER_STR-PROCESS_TYPE sy-vline 
WA_CRMT_GRM_BTX_HEADER_STR-POSTING_DATE sy-vline 
WA_CRMT_GRM_BTX_HEADER_STR-CREATED_AT sy-vline 
WA_CRMT_GRM_BTX_HEADER_STR-CREATED_BY sy-vline 
WA_CRMT_GRM_BTX_HEADER_STR-CHANGED_AT sy-vline 
WA_CRMT_GRM_BTX_HEADER_STR-CHANGED_BY sy-vline 
WA_CRMT_GRM_BTX_HEADER_STR-EXTERNAL_REF sy-vline 
WA_CRMT_GRM_BTX_HEADER_STR-REF_DATE sy-vline 
WA_CRMT_GRM_BTX_HEADER_STR-CURRENCY sy-vline 
WA_CRMT_GRM_BTX_HEADER_STR-HIGHEST_ITEM_NO sy-vline 
WA_CRMT_GRM_BTX_HEADER_STR-VALID_FROM sy-vline 
WA_CRMT_GRM_BTX_HEADER_STR-TZONE_FROM sy-vline 
WA_CRMT_GRM_BTX_HEADER_STR-VALID_TO sy-vline 
WA_CRMT_GRM_BTX_HEADER_STR-TZONE_TO sy-vline 
WA_CRMT_GRM_BTX_HEADER_STR-EXPENSE_DATE sy-vline 
WA_CRMT_GRM_BTX_HEADER_STR-GRANTEE sy-vline 
WA_CRMT_GRM_BTX_HEADER_STR-PAYEE sy-vline 
WA_CRMT_GRM_BTX_HEADER_STR-CONTACT_PERSON sy-vline 
WA_CRMT_GRM_BTX_HEADER_STR-PERSON_RESPONSIBLE sy-vline 
WA_CRMT_GRM_BTX_HEADER_STR-SALES_ORG sy-vline 
WA_CRMT_GRM_BTX_HEADER_STR-SERVICE_ORG sy-vline 
WA_CRMT_GRM_BTX_HEADER_STR-DIS_CHANNEL sy-vline 
WA_CRMT_GRM_BTX_HEADER_STR-DIVISION sy-vline 
WA_CRMT_GRM_BTX_HEADER_STR-SALES_ORG_RESP sy-vline 
WA_CRMT_GRM_BTX_HEADER_STR-STATUS_REJECTED sy-vline 
WA_CRMT_GRM_BTX_HEADER_STR-STATUS_CANCELLED sy-vline 
WA_CRMT_GRM_BTX_HEADER_STR-STATUS_ERROR sy-vline 
WA_CRMT_GRM_BTX_HEADER_STR-STATUS_COMPLETED sy-vline 
WA_CRMT_GRM_BTX_HEADER_STR-STATUS_RELEASED sy-vline 
WA_CRMT_GRM_BTX_HEADER_STR-STATUS_ARCHIVED sy-vline 
WA_CRMT_GRM_BTX_HEADER_STR-STATUS_TRANSFERRED sy-vline 
WA_CRMT_GRM_BTX_HEADER_STR-STATUS_TRANSFERRING sy-vline 
WA_CRMT_GRM_BTX_HEADER_STR-STATUS_TRANSFER_FAILED sy-vline 
WA_CRMT_GRM_BTX_HEADER_STR-STATUS_CALLED_OFF sy-vline 
WA_CRMT_GRM_BTX_HEADER_STR-CURR_SYS_STATUS sy-vline 
WA_CRMT_GRM_BTX_HEADER_STR-CURR_USER_STATUS sy-vline 
WA_CRMT_GRM_BTX_HEADER_STR-BILL_DATE sy-vline 
WA_CRMT_GRM_BTX_HEADER_STR-BILLING_BLOCK sy-vline 
WA_CRMT_GRM_BTX_HEADER_STR-BILLING_BLOCK_REASON sy-vline 
WA_CRMT_GRM_BTX_HEADER_STR-BUAG_GUID sy-vline 
WA_CRMT_GRM_BTX_HEADER_STR-DOC_FLOW sy-vline      INTO ld_text SEPARATED BY SPACE.

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