ABAP Select data from SAP table CMCB_S_LP_FI_EXTRACT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMCB_S_LP_FI_EXTRACT
*  INTO TABLE @DATA(IT_CMCB_S_LP_FI_EXTRACT2).
*--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_CMCB_S_LP_FI_EXTRACT INDEX 1 INTO DATA(WA_CMCB_S_LP_FI_EXTRACT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMCB_S_LP_FI_EXTRACT>-CB_AREA = 1.
<CMCB_S_LP_FI_EXTRACT>-CYCLE_ID = 1.
<CMCB_S_LP_FI_EXTRACT>-UNIT_ID = 1.
<CMCB_S_LP_FI_EXTRACT>-LIQ_ITEM = 1.
<CMCB_S_LP_FI_EXTRACT>-VENDOR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMCB_S_LP_FI_EXTRACT-CUSTOMER, sy-vline,
  WA_CMCB_S_LP_FI_EXTRACT-IS_LEAF, sy-vline,
  WA_CMCB_S_LP_FI_EXTRACT-IOBJNM, sy-vline,
  WA_CMCB_S_LP_FI_EXTRACT-ZBUKR, sy-vline,
  WA_CMCB_S_LP_FI_EXTRACT-PRCTR, sy-vline,
  WA_CMCB_S_LP_FI_EXTRACT-BELNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMCB_S_LP_FI_EXTRACT 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_CMCB_S_LP_FI_EXTRACT 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_CMCB_S_LP_FI_EXTRACT INTO WA_CMCB_S_LP_FI_EXTRACT.


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

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

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

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

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

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

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

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

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

*Conversion exit AC152, internal->external for field WRBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_CMCB_S_LP_FI_EXTRACT-WRBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMCB_S_LP_FI_EXTRACT-WRBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LQPOS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CMCB_S_LP_FI_EXTRACT-LQPOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMCB_S_LP_FI_EXTRACT-LQPOS.
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_CMCB_S_LP_FI_EXTRACT_STR, 
CB_AREA TYPE STRING,
CYCLE_ID TYPE STRING,
UNIT_ID TYPE STRING,
LIQ_ITEM TYPE STRING,
VENDOR TYPE STRING,
CUSTOMER TYPE STRING,
IS_LEAF TYPE STRING,
IOBJNM TYPE STRING,
ZBUKR TYPE STRING,
PRCTR TYPE STRING,
BELNR TYPE STRING,
BUZEI TYPE STRING,
GJAHR TYPE STRING,
CPUDT TYPE STRING,
HKONT TYPE STRING,
PKOART TYPE STRING,
PARTNER TYPE STRING,
WRBTR TYPE STRING,
TWAER TYPE STRING,
LQDAY TYPE STRING,
LQPOS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMCB_S_LP_FI_EXTRACT_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_CMCB_S_LP_FI_EXTRACT_STR-CB_AREA sy-vline 
WA_CMCB_S_LP_FI_EXTRACT_STR-CYCLE_ID sy-vline 
WA_CMCB_S_LP_FI_EXTRACT_STR-UNIT_ID sy-vline 
WA_CMCB_S_LP_FI_EXTRACT_STR-LIQ_ITEM sy-vline 
WA_CMCB_S_LP_FI_EXTRACT_STR-VENDOR sy-vline 
WA_CMCB_S_LP_FI_EXTRACT_STR-CUSTOMER sy-vline 
WA_CMCB_S_LP_FI_EXTRACT_STR-IS_LEAF sy-vline 
WA_CMCB_S_LP_FI_EXTRACT_STR-IOBJNM sy-vline 
WA_CMCB_S_LP_FI_EXTRACT_STR-ZBUKR sy-vline 
WA_CMCB_S_LP_FI_EXTRACT_STR-PRCTR sy-vline 
WA_CMCB_S_LP_FI_EXTRACT_STR-BELNR sy-vline 
WA_CMCB_S_LP_FI_EXTRACT_STR-BUZEI sy-vline 
WA_CMCB_S_LP_FI_EXTRACT_STR-GJAHR sy-vline 
WA_CMCB_S_LP_FI_EXTRACT_STR-CPUDT sy-vline 
WA_CMCB_S_LP_FI_EXTRACT_STR-HKONT sy-vline 
WA_CMCB_S_LP_FI_EXTRACT_STR-PKOART sy-vline 
WA_CMCB_S_LP_FI_EXTRACT_STR-PARTNER sy-vline 
WA_CMCB_S_LP_FI_EXTRACT_STR-WRBTR sy-vline 
WA_CMCB_S_LP_FI_EXTRACT_STR-TWAER sy-vline 
WA_CMCB_S_LP_FI_EXTRACT_STR-LQDAY sy-vline 
WA_CMCB_S_LP_FI_EXTRACT_STR-LQPOS sy-vline      INTO ld_text SEPARATED BY SPACE.

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