ABAP Select data from SAP table TRTM_CHG_PARTNER_ALV into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TRTM_CHG_PARTNER_ALV
*  INTO TABLE @DATA(IT_TRTM_CHG_PARTNER_ALV2).
*--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_TRTM_CHG_PARTNER_ALV INDEX 1 INTO DATA(WA_TRTM_CHG_PARTNER_ALV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TRTM_CHG_PARTNER_ALV>-COMPANY_CODE = 1.
<TRTM_CHG_PARTNER_ALV>-DEAL_NUMBER = 1.
<TRTM_CHG_PARTNER_ALV>-PRODUCT_TYPE = 1.
<TRTM_CHG_PARTNER_ALV>-PRODUCT_TYPE_TEXT = 1.
<TRTM_CHG_PARTNER_ALV>-TRANSACTION_TYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TRTM_CHG_PARTNER_ALV-TRANSACTION_TYPE_TEXT, sy-vline,
  WA_TRTM_CHG_PARTNER_ALV-PARTNER_NEW, sy-vline,
  WA_TRTM_CHG_PARTNER_ALV-PARTNER_OLD, sy-vline,
  WA_TRTM_CHG_PARTNER_ALV-START_OF_TERM, sy-vline,
  WA_TRTM_CHG_PARTNER_ALV-END_OF_TERM, sy-vline,
  WA_TRTM_CHG_PARTNER_ALV-CHG_EFF_FROM_DAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TRTM_CHG_PARTNER_ALV 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_TRTM_CHG_PARTNER_ALV 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_TRTM_CHG_PARTNER_ALV INTO WA_TRTM_CHG_PARTNER_ALV.


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

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

*Conversion exit ALPHA, internal->external for field PARTNER_OLD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TRTM_CHG_PARTNER_ALV-PARTNER_OLD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TRTM_CHG_PARTNER_ALV-PARTNER_OLD.
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_TRTM_CHG_PARTNER_ALV_STR, 
COMPANY_CODE TYPE STRING,
DEAL_NUMBER TYPE STRING,
PRODUCT_TYPE TYPE STRING,
PRODUCT_TYPE_TEXT TYPE STRING,
TRANSACTION_TYPE TYPE STRING,
TRANSACTION_TYPE_TEXT TYPE STRING,
PARTNER_NEW TYPE STRING,
PARTNER_OLD TYPE STRING,
START_OF_TERM TYPE STRING,
END_OF_TERM TYPE STRING,
CHG_EFF_FROM_DAT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TRTM_CHG_PARTNER_ALV_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_TRTM_CHG_PARTNER_ALV_STR-COMPANY_CODE sy-vline 
WA_TRTM_CHG_PARTNER_ALV_STR-DEAL_NUMBER sy-vline 
WA_TRTM_CHG_PARTNER_ALV_STR-PRODUCT_TYPE sy-vline 
WA_TRTM_CHG_PARTNER_ALV_STR-PRODUCT_TYPE_TEXT sy-vline 
WA_TRTM_CHG_PARTNER_ALV_STR-TRANSACTION_TYPE sy-vline 
WA_TRTM_CHG_PARTNER_ALV_STR-TRANSACTION_TYPE_TEXT sy-vline 
WA_TRTM_CHG_PARTNER_ALV_STR-PARTNER_NEW sy-vline 
WA_TRTM_CHG_PARTNER_ALV_STR-PARTNER_OLD sy-vline 
WA_TRTM_CHG_PARTNER_ALV_STR-START_OF_TERM sy-vline 
WA_TRTM_CHG_PARTNER_ALV_STR-END_OF_TERM sy-vline 
WA_TRTM_CHG_PARTNER_ALV_STR-CHG_EFF_FROM_DAT sy-vline      INTO ld_text SEPARATED BY SPACE.

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