ABAP Select data from SAP table TRQV_LOT_ATTR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TRQV_LOT_ATTR
*  INTO TABLE @DATA(IT_TRQV_LOT_ATTR2).
*--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_TRQV_LOT_ATTR INDEX 1 INTO DATA(WA_TRQV_LOT_ATTR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TRQV_LOT_ATTR>-MANDT = 1.
<TRQV_LOT_ATTR>-OS_GUID = 1.
<TRQV_LOT_ATTR>-POSITION_DATE = 1.
<TRQV_LOT_ATTR>-ORIGIN_DATE = 1.
<TRQV_LOT_ATTR>-BUSTRANSID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TRQV_LOT_ATTR-LOT_ID, sy-vline,
  WA_TRQV_LOT_ATTR-COMPANY_CODE, sy-vline,
  WA_TRQV_LOT_ATTR-VALUATION_AREA, sy-vline,
  WA_TRQV_LOT_ATTR-DEAL_NUMBER, sy-vline,
  WA_TRQV_LOT_ATTR-BUSTRANSCAT, sy-vline,
  WA_TRQV_LOT_ATTR-PRODUCT_GROUP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TRQV_LOT_ATTR 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_TRQV_LOT_ATTR 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_TRQV_LOT_ATTR INTO WA_TRQV_LOT_ATTR.


*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_TRQV_LOT_ATTR-DEAL_NUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TRQV_LOT_ATTR-DEAL_NUMBER.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field KONTRH
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TRQV_LOT_ATTR-KONTRH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TRQV_LOT_ATTR-KONTRH.
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_TRQV_LOT_ATTR_STR, 
MANDT TYPE STRING,
OS_GUID TYPE STRING,
POSITION_DATE TYPE STRING,
ORIGIN_DATE TYPE STRING,
BUSTRANSID TYPE STRING,
LOT_ID TYPE STRING,
COMPANY_CODE TYPE STRING,
VALUATION_AREA TYPE STRING,
DEAL_NUMBER TYPE STRING,
BUSTRANSCAT TYPE STRING,
PRODUCT_GROUP TYPE STRING,
PRODUCT_CATEGORY TYPE STRING,
BUSTRANS_STATE TYPE STRING,
CREATE_DATE TYPE STRING,
CREATE_TIME TYPE STRING,
RLDEPO TYPE STRING,
RANL TYPE STRING,
POSACC TYPE STRING,
SGSART TYPE STRING,
KONTRH TYPE STRING,
ZUOND TYPE STRING,
REFER TYPE STRING,
MERKM TYPE STRING,
RCOMVALCL TYPE STRING,
CRUSER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TRQV_LOT_ATTR_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_TRQV_LOT_ATTR_STR-MANDT sy-vline 
WA_TRQV_LOT_ATTR_STR-OS_GUID sy-vline 
WA_TRQV_LOT_ATTR_STR-POSITION_DATE sy-vline 
WA_TRQV_LOT_ATTR_STR-ORIGIN_DATE sy-vline 
WA_TRQV_LOT_ATTR_STR-BUSTRANSID sy-vline 
WA_TRQV_LOT_ATTR_STR-LOT_ID sy-vline 
WA_TRQV_LOT_ATTR_STR-COMPANY_CODE sy-vline 
WA_TRQV_LOT_ATTR_STR-VALUATION_AREA sy-vline 
WA_TRQV_LOT_ATTR_STR-DEAL_NUMBER sy-vline 
WA_TRQV_LOT_ATTR_STR-BUSTRANSCAT sy-vline 
WA_TRQV_LOT_ATTR_STR-PRODUCT_GROUP sy-vline 
WA_TRQV_LOT_ATTR_STR-PRODUCT_CATEGORY sy-vline 
WA_TRQV_LOT_ATTR_STR-BUSTRANS_STATE sy-vline 
WA_TRQV_LOT_ATTR_STR-CREATE_DATE sy-vline 
WA_TRQV_LOT_ATTR_STR-CREATE_TIME sy-vline 
WA_TRQV_LOT_ATTR_STR-RLDEPO sy-vline 
WA_TRQV_LOT_ATTR_STR-RANL sy-vline 
WA_TRQV_LOT_ATTR_STR-POSACC sy-vline 
WA_TRQV_LOT_ATTR_STR-SGSART sy-vline 
WA_TRQV_LOT_ATTR_STR-KONTRH sy-vline 
WA_TRQV_LOT_ATTR_STR-ZUOND sy-vline 
WA_TRQV_LOT_ATTR_STR-REFER sy-vline 
WA_TRQV_LOT_ATTR_STR-MERKM sy-vline 
WA_TRQV_LOT_ATTR_STR-RCOMVALCL sy-vline 
WA_TRQV_LOT_ATTR_STR-CRUSER sy-vline      INTO ld_text SEPARATED BY SPACE.

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