ABAP Select data from SAP table CMCB_S_OE_TRM_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_OE_TRM_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_OE_TRM_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_OE_TRM_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_OE_TRM_EXTRACT TYPE STANDARD TABLE OF CMCB_S_OE_TRM_EXTRACT,
      WA_CMCB_S_OE_TRM_EXTRACT TYPE CMCB_S_OE_TRM_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_OE_TRM_EXTRACT> TYPE CMCB_S_OE_TRM_EXTRACT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMCB_S_OE_TRM_EXTRACT
*  INTO TABLE @DATA(IT_CMCB_S_OE_TRM_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_OE_TRM_EXTRACT INDEX 1 INTO DATA(WA_CMCB_S_OE_TRM_EXTRACT2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMCB_S_OE_TRM_EXTRACT-CUSTOMER, sy-vline,
  WA_CMCB_S_OE_TRM_EXTRACT-IS_LEAF, sy-vline,
  WA_CMCB_S_OE_TRM_EXTRACT-IOBJNM, sy-vline,
  WA_CMCB_S_OE_TRM_EXTRACT-LQPOS, sy-vline,
  WA_CMCB_S_OE_TRM_EXTRACT-BUKRS, sy-vline,
  WA_CMCB_S_OE_TRM_EXTRACT-PRCTR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMCB_S_OE_TRM_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_OE_TRM_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_OE_TRM_EXTRACT INTO WA_CMCB_S_OE_TRM_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_OE_TRM_EXTRACT-CYCLE_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMCB_S_OE_TRM_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_OE_TRM_EXTRACT-LIQ_ITEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMCB_S_OE_TRM_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_OE_TRM_EXTRACT-VENDOR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMCB_S_OE_TRM_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_OE_TRM_EXTRACT-CUSTOMER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMCB_S_OE_TRM_EXTRACT-CUSTOMER.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ALPHA, internal->external for field DOC_NUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CMCB_S_OE_TRM_EXTRACT-DOC_NUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMCB_S_OE_TRM_EXTRACT-DOC_NUM.
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_OE_TRM_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,
LQPOS TYPE STRING,
BUKRS TYPE STRING,
PRCTR TYPE STRING,
BUSINESS_AREA TYPE STRING,
CONTRACT_NUMBER TYPE STRING,
PLANNING_LEVEL TYPE STRING,
TRM_PRODUCT_TYPE TYPE STRING,
TRM_TRANSACTION_TYPE TYPE STRING,
TRM_ACTIVITY_CATEGORY TYPE STRING,
WRBTR TYPE STRING,
TWAER TYPE STRING,
LQDAY TYPE STRING,
PARTNER TYPE STRING,
CREATION_DATE TYPE STRING,
DOC_NUM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMCB_S_OE_TRM_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_OE_TRM_EXTRACT_STR-CB_AREA sy-vline 
WA_CMCB_S_OE_TRM_EXTRACT_STR-CYCLE_ID sy-vline 
WA_CMCB_S_OE_TRM_EXTRACT_STR-UNIT_ID sy-vline 
WA_CMCB_S_OE_TRM_EXTRACT_STR-LIQ_ITEM sy-vline 
WA_CMCB_S_OE_TRM_EXTRACT_STR-VENDOR sy-vline 
WA_CMCB_S_OE_TRM_EXTRACT_STR-CUSTOMER sy-vline 
WA_CMCB_S_OE_TRM_EXTRACT_STR-IS_LEAF sy-vline 
WA_CMCB_S_OE_TRM_EXTRACT_STR-IOBJNM sy-vline 
WA_CMCB_S_OE_TRM_EXTRACT_STR-LQPOS sy-vline 
WA_CMCB_S_OE_TRM_EXTRACT_STR-BUKRS sy-vline 
WA_CMCB_S_OE_TRM_EXTRACT_STR-PRCTR sy-vline 
WA_CMCB_S_OE_TRM_EXTRACT_STR-BUSINESS_AREA sy-vline 
WA_CMCB_S_OE_TRM_EXTRACT_STR-CONTRACT_NUMBER sy-vline 
WA_CMCB_S_OE_TRM_EXTRACT_STR-PLANNING_LEVEL sy-vline 
WA_CMCB_S_OE_TRM_EXTRACT_STR-TRM_PRODUCT_TYPE sy-vline 
WA_CMCB_S_OE_TRM_EXTRACT_STR-TRM_TRANSACTION_TYPE sy-vline 
WA_CMCB_S_OE_TRM_EXTRACT_STR-TRM_ACTIVITY_CATEGORY sy-vline 
WA_CMCB_S_OE_TRM_EXTRACT_STR-WRBTR sy-vline 
WA_CMCB_S_OE_TRM_EXTRACT_STR-TWAER sy-vline 
WA_CMCB_S_OE_TRM_EXTRACT_STR-LQDAY sy-vline 
WA_CMCB_S_OE_TRM_EXTRACT_STR-PARTNER sy-vline 
WA_CMCB_S_OE_TRM_EXTRACT_STR-CREATION_DATE sy-vline 
WA_CMCB_S_OE_TRM_EXTRACT_STR-DOC_NUM sy-vline      INTO ld_text SEPARATED BY SPACE.

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