ABAP Select data from SAP table CRMM_DI into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMM_DI
*  INTO TABLE @DATA(IT_CRMM_DI2).
*--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_CRMM_DI INDEX 1 INTO DATA(WA_CRMM_DI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMM_DI>-HDR_PARTNER = 1.
<CRMM_DI>-BUAG_TEXT = 1.
<CRMM_DI>-BUAG_VALID_TO = 1.
<CRMM_DI>-BUAG_VALID_FROM = 1.
<CRMM_DI>-OWNER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMM_DI-BUAG_DEFAULT, sy-vline,
  WA_CRMM_DI-BUAG_CLASS, sy-vline,
  WA_CRMM_DI-BUAG_CORR_ADDR, sy-vline,
  WA_CRMM_DI-BDID_IN, sy-vline,
  WA_CRMM_DI-BDID_OUT, sy-vline,
  WA_CRMM_DI-CCARD_IN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMM_DI 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_CRMM_DI 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_CRMM_DI INTO WA_CRMM_DI.


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

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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field PARTNER1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRMM_DI-PARTNER1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMM_DI-PARTNER1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PARTNER2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRMM_DI-PARTNER2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMM_DI-PARTNER2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRMM_DI-RELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMM_DI-RELNR.
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_CRMM_DI_STR, 
HDR_PARTNER TYPE STRING,
BUAG_TEXT TYPE STRING,
BUAG_VALID_TO TYPE STRING,
BUAG_VALID_FROM TYPE STRING,
OWNER TYPE STRING,
BUAG_DEFAULT TYPE STRING,
BUAG_CLASS TYPE STRING,
BUAG_CORR_ADDR TYPE STRING,
BDID_IN TYPE STRING,
BDID_OUT TYPE STRING,
CCARD_IN TYPE STRING,
CCARD_OUT TYPE STRING,
ADDR_DR TYPE STRING,
ADDR_PY TYPE STRING,
ADDR_PR TYPE STRING,
BP_PAYER TYPE STRING,
BUAG_PAYER TYPE STRING,
ADDR_IR TYPE STRING,
ADDR_TAX TYPE STRING,
TAX_CAT TYPE STRING,
TAX_CODE TYPE STRING,
BABR_TEXT TYPE STRING,
BABR_VALID_TO TYPE STRING,
BABR_VALID_FROM TYPE STRING,
PAYM_METH_IN TYPE STRING,
PAYM_METH_OUT TYPE STRING,
SNDCNTRL_DR TYPE STRING,
TOFPAYM TYPE STRING,
SNDCNTRL_BR TYPE STRING,
CORR_VARNT TYPE STRING,
SNDCNTRL_BP TYPE STRING,
CHIND_PF TYPE STRING,
PARTNER_PFT TYPE STRING,
PARTNER1 TYPE STRING,
PARTNER2 TYPE STRING,
RELNR TYPE STRING,
PARTNER_FCT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMM_DI_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_CRMM_DI_STR-HDR_PARTNER sy-vline 
WA_CRMM_DI_STR-BUAG_TEXT sy-vline 
WA_CRMM_DI_STR-BUAG_VALID_TO sy-vline 
WA_CRMM_DI_STR-BUAG_VALID_FROM sy-vline 
WA_CRMM_DI_STR-OWNER sy-vline 
WA_CRMM_DI_STR-BUAG_DEFAULT sy-vline 
WA_CRMM_DI_STR-BUAG_CLASS sy-vline 
WA_CRMM_DI_STR-BUAG_CORR_ADDR sy-vline 
WA_CRMM_DI_STR-BDID_IN sy-vline 
WA_CRMM_DI_STR-BDID_OUT sy-vline 
WA_CRMM_DI_STR-CCARD_IN sy-vline 
WA_CRMM_DI_STR-CCARD_OUT sy-vline 
WA_CRMM_DI_STR-ADDR_DR sy-vline 
WA_CRMM_DI_STR-ADDR_PY sy-vline 
WA_CRMM_DI_STR-ADDR_PR sy-vline 
WA_CRMM_DI_STR-BP_PAYER sy-vline 
WA_CRMM_DI_STR-BUAG_PAYER sy-vline 
WA_CRMM_DI_STR-ADDR_IR sy-vline 
WA_CRMM_DI_STR-ADDR_TAX sy-vline 
WA_CRMM_DI_STR-TAX_CAT sy-vline 
WA_CRMM_DI_STR-TAX_CODE sy-vline 
WA_CRMM_DI_STR-BABR_TEXT sy-vline 
WA_CRMM_DI_STR-BABR_VALID_TO sy-vline 
WA_CRMM_DI_STR-BABR_VALID_FROM sy-vline 
WA_CRMM_DI_STR-PAYM_METH_IN sy-vline 
WA_CRMM_DI_STR-PAYM_METH_OUT sy-vline 
WA_CRMM_DI_STR-SNDCNTRL_DR sy-vline 
WA_CRMM_DI_STR-TOFPAYM sy-vline 
WA_CRMM_DI_STR-SNDCNTRL_BR sy-vline 
WA_CRMM_DI_STR-CORR_VARNT sy-vline 
WA_CRMM_DI_STR-SNDCNTRL_BP sy-vline 
WA_CRMM_DI_STR-CHIND_PF sy-vline 
WA_CRMM_DI_STR-PARTNER_PFT sy-vline 
WA_CRMM_DI_STR-PARTNER1 sy-vline 
WA_CRMM_DI_STR-PARTNER2 sy-vline 
WA_CRMM_DI_STR-RELNR sy-vline 
WA_CRMM_DI_STR-PARTNER_FCT sy-vline      INTO ld_text SEPARATED BY SPACE.

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