ABAP Select data from SAP table TRQS_POS_ASSIG into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TRQS_POS_ASSIG
*  INTO TABLE @DATA(IT_TRQS_POS_ASSIG2).
*--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_TRQS_POS_ASSIG INDEX 1 INTO DATA(WA_TRQS_POS_ASSIG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TRQS_POS_ASSIG>-BUSTRANSID = 1.
<TRQS_POS_ASSIG>-DIS_FLOWTYPE = 1.
<TRQS_POS_ASSIG>-DIS_FLOWTYPE_TEXT = 1.
<TRQS_POS_ASSIG>-UNITS = 1.
<TRQS_POS_ASSIG>-NOMINAL_CURR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TRQS_POS_ASSIG-NOMINAL_AMT, sy-vline,
  WA_TRQS_POS_ASSIG-NOMINAL_ORG_AMT, sy-vline,
  WA_TRQS_POS_ASSIG-PAYMENT_CURR, sy-vline,
  WA_TRQS_POS_ASSIG-PAYMENT_AMT, sy-vline,
  WA_TRQS_POS_ASSIG-POSITION_CURR, sy-vline,
  WA_TRQS_POS_ASSIG-POSITION_AMT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TRQS_POS_ASSIG 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_TRQS_POS_ASSIG 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_TRQS_POS_ASSIG INTO WA_TRQS_POS_ASSIG.


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

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

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

*Conversion exit ABPSP, internal->external for field WBS_ELEMENT
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_TRQS_POS_ASSIG-WBS_ELEMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TRQS_POS_ASSIG-WBS_ELEMENT.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field PROFIT_CENTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TRQS_POS_ASSIG-PROFIT_CENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TRQS_POS_ASSIG-PROFIT_CENTER.
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_TRQS_POS_ASSIG_STR, 
BUSTRANSID TYPE STRING,
DIS_FLOWTYPE TYPE STRING,
DIS_FLOWTYPE_TEXT TYPE STRING,
UNITS TYPE STRING,
NOMINAL_CURR TYPE STRING,
NOMINAL_AMT TYPE STRING,
NOMINAL_ORG_AMT TYPE STRING,
PAYMENT_CURR TYPE STRING,
PAYMENT_AMT TYPE STRING,
POSITION_CURR TYPE STRING,
POSITION_AMT TYPE STRING,
LOCAL_CURR TYPE STRING,
LOCAL_AMT TYPE STRING,
BBASIS TYPE STRING,
SOURCETARGET_FLG TYPE STRING,
TRANSFER_GROUP TYPE STRING,
LOT_CREATION TYPE STRING,
COM_VAL_CLASS TYPE STRING,
COMPANY_CODE TYPE STRING,
SECURITY_ACCOUNT TYPE STRING,
SECURITY_ID TYPE STRING,
PORTFOLIO TYPE STRING,
POSITION_ACCOUNT TYPE STRING,
FLAG_LONG_SHORT TYPE STRING,
DEAL_NUMBER TYPE STRING,
FUND TYPE STRING,
GRANT_NBR TYPE STRING,
WBS_ELEMENT TYPE STRING,
COST_CENTER TYPE STRING,
PROFIT_CENTER TYPE STRING,
FUNCTIONAL_AREA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TRQS_POS_ASSIG_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_TRQS_POS_ASSIG_STR-BUSTRANSID sy-vline 
WA_TRQS_POS_ASSIG_STR-DIS_FLOWTYPE sy-vline 
WA_TRQS_POS_ASSIG_STR-DIS_FLOWTYPE_TEXT sy-vline 
WA_TRQS_POS_ASSIG_STR-UNITS sy-vline 
WA_TRQS_POS_ASSIG_STR-NOMINAL_CURR sy-vline 
WA_TRQS_POS_ASSIG_STR-NOMINAL_AMT sy-vline 
WA_TRQS_POS_ASSIG_STR-NOMINAL_ORG_AMT sy-vline 
WA_TRQS_POS_ASSIG_STR-PAYMENT_CURR sy-vline 
WA_TRQS_POS_ASSIG_STR-PAYMENT_AMT sy-vline 
WA_TRQS_POS_ASSIG_STR-POSITION_CURR sy-vline 
WA_TRQS_POS_ASSIG_STR-POSITION_AMT sy-vline 
WA_TRQS_POS_ASSIG_STR-LOCAL_CURR sy-vline 
WA_TRQS_POS_ASSIG_STR-LOCAL_AMT sy-vline 
WA_TRQS_POS_ASSIG_STR-BBASIS sy-vline 
WA_TRQS_POS_ASSIG_STR-SOURCETARGET_FLG sy-vline 
WA_TRQS_POS_ASSIG_STR-TRANSFER_GROUP sy-vline 
WA_TRQS_POS_ASSIG_STR-LOT_CREATION sy-vline 
WA_TRQS_POS_ASSIG_STR-COM_VAL_CLASS sy-vline 
WA_TRQS_POS_ASSIG_STR-COMPANY_CODE sy-vline 
WA_TRQS_POS_ASSIG_STR-SECURITY_ACCOUNT sy-vline 
WA_TRQS_POS_ASSIG_STR-SECURITY_ID sy-vline 
WA_TRQS_POS_ASSIG_STR-PORTFOLIO sy-vline 
WA_TRQS_POS_ASSIG_STR-POSITION_ACCOUNT sy-vline 
WA_TRQS_POS_ASSIG_STR-FLAG_LONG_SHORT sy-vline 
WA_TRQS_POS_ASSIG_STR-DEAL_NUMBER sy-vline 
WA_TRQS_POS_ASSIG_STR-FUND sy-vline 
WA_TRQS_POS_ASSIG_STR-GRANT_NBR sy-vline 
WA_TRQS_POS_ASSIG_STR-WBS_ELEMENT sy-vline 
WA_TRQS_POS_ASSIG_STR-COST_CENTER sy-vline 
WA_TRQS_POS_ASSIG_STR-PROFIT_CENTER sy-vline 
WA_TRQS_POS_ASSIG_STR-FUNCTIONAL_AREA sy-vline      INTO ld_text SEPARATED BY SPACE.

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