ABAP Select data from SAP table CRMST_UBB_CHNG_PROC_INPUT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMST_UBB_CHNG_PROC_INPUT
*  INTO TABLE @DATA(IT_CRMST_UBB_CHNG_PROC_INPUT2).
*--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_CRMST_UBB_CHNG_PROC_INPUT INDEX 1 INTO DATA(WA_CRMST_UBB_CHNG_PROC_INPUT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMST_UBB_CHNG_PROC_INPUT>-VALID_FROM_TS = 1.
<CRMST_UBB_CHNG_PROC_INPUT>-VALID_TO_TS = 1.
<CRMST_UBB_CHNG_PROC_INPUT>-PARTNER_FCT = 1.
<CRMST_UBB_CHNG_PROC_INPUT>-PARTNER_NO = 1.
<CRMST_UBB_CHNG_PROC_INPUT>-SRV_ORDERED_PROD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMST_UBB_CHNG_PROC_INPUT-IBASE_COMPONENT_SUCC, sy-vline,
  WA_CRMST_UBB_CHNG_PROC_INPUT-IOBJECT_ID_SUCC, sy-vline,
  WA_CRMST_UBB_CHNG_PROC_INPUT-RENEWAL_PERIOD, sy-vline,
  WA_CRMST_UBB_CHNG_PROC_INPUT-RENEWAL_PERIOD_UNIT, sy-vline,
  WA_CRMST_UBB_CHNG_PROC_INPUT-REMAINING_DURATION, sy-vline,
  WA_CRMST_UBB_CHNG_PROC_INPUT-REMAINING_DURATION_UNIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMST_UBB_CHNG_PROC_INPUT 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_CRMST_UBB_CHNG_PROC_INPUT 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_CRMST_UBB_CHNG_PROC_INPUT INTO WA_CRMST_UBB_CHNG_PROC_INPUT.


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

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

*Conversion exit PRID1, internal->external for field IOBJECT_ID_SUCC
CALL FUNCTION 'CONVERSION_EXIT_PRID1_OUTPUT'
  EXPORTING
    input =                      WA_CRMST_UBB_CHNG_PROC_INPUT-IOBJECT_ID_SUCC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMST_UBB_CHNG_PROC_INPUT-IOBJECT_ID_SUCC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field POOL_CTR_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRMST_UBB_CHNG_PROC_INPUT-POOL_CTR_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMST_UBB_CHNG_PROC_INPUT-POOL_CTR_ID.
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_CRMST_UBB_CHNG_PROC_INPUT_STR, 
VALID_FROM_TS TYPE STRING,
VALID_TO_TS TYPE STRING,
PARTNER_FCT TYPE STRING,
PARTNER_NO TYPE STRING,
SRV_ORDERED_PROD TYPE STRING,
IBASE_COMPONENT_SUCC TYPE STRING,
IOBJECT_ID_SUCC TYPE STRING,
RENEWAL_PERIOD TYPE STRING,
RENEWAL_PERIOD_UNIT TYPE STRING,
REMAINING_DURATION TYPE STRING,
REMAINING_DURATION_UNIT TYPE STRING,
QUOTATION TYPE STRING,
POOL_LINK_TAKEOVER TYPE STRING,
DATE_RULE TYPE STRING,
ORDERED_PROD TYPE STRING,
POOL_CTR_ID TYPE STRING,
POOL_CTR_ITEM_NO TYPE STRING,
EXECUTE_TS TYPE STRING,
LINK_RULE TYPE STRING,
LINK_VALID_FROM_TS TYPE STRING,
LINK_VALID_TO_TS TYPE STRING,
TERM_VALID_TO_TS TYPE STRING,
ASSIGN_VALID_FROM_TS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMST_UBB_CHNG_PROC_INPUT_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_CRMST_UBB_CHNG_PROC_INPUT_STR-VALID_FROM_TS sy-vline 
WA_CRMST_UBB_CHNG_PROC_INPUT_STR-VALID_TO_TS sy-vline 
WA_CRMST_UBB_CHNG_PROC_INPUT_STR-PARTNER_FCT sy-vline 
WA_CRMST_UBB_CHNG_PROC_INPUT_STR-PARTNER_NO sy-vline 
WA_CRMST_UBB_CHNG_PROC_INPUT_STR-SRV_ORDERED_PROD sy-vline 
WA_CRMST_UBB_CHNG_PROC_INPUT_STR-IBASE_COMPONENT_SUCC sy-vline 
WA_CRMST_UBB_CHNG_PROC_INPUT_STR-IOBJECT_ID_SUCC sy-vline 
WA_CRMST_UBB_CHNG_PROC_INPUT_STR-RENEWAL_PERIOD sy-vline 
WA_CRMST_UBB_CHNG_PROC_INPUT_STR-RENEWAL_PERIOD_UNIT sy-vline 
WA_CRMST_UBB_CHNG_PROC_INPUT_STR-REMAINING_DURATION sy-vline 
WA_CRMST_UBB_CHNG_PROC_INPUT_STR-REMAINING_DURATION_UNIT sy-vline 
WA_CRMST_UBB_CHNG_PROC_INPUT_STR-QUOTATION sy-vline 
WA_CRMST_UBB_CHNG_PROC_INPUT_STR-POOL_LINK_TAKEOVER sy-vline 
WA_CRMST_UBB_CHNG_PROC_INPUT_STR-DATE_RULE sy-vline 
WA_CRMST_UBB_CHNG_PROC_INPUT_STR-ORDERED_PROD sy-vline 
WA_CRMST_UBB_CHNG_PROC_INPUT_STR-POOL_CTR_ID sy-vline 
WA_CRMST_UBB_CHNG_PROC_INPUT_STR-POOL_CTR_ITEM_NO sy-vline 
WA_CRMST_UBB_CHNG_PROC_INPUT_STR-EXECUTE_TS sy-vline 
WA_CRMST_UBB_CHNG_PROC_INPUT_STR-LINK_RULE sy-vline 
WA_CRMST_UBB_CHNG_PROC_INPUT_STR-LINK_VALID_FROM_TS sy-vline 
WA_CRMST_UBB_CHNG_PROC_INPUT_STR-LINK_VALID_TO_TS sy-vline 
WA_CRMST_UBB_CHNG_PROC_INPUT_STR-TERM_VALID_TO_TS sy-vline 
WA_CRMST_UBB_CHNG_PROC_INPUT_STR-ASSIGN_VALID_FROM_TS sy-vline      INTO ld_text SEPARATED BY SPACE.

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