ABAP Select data from SAP table TLRV_TRADE_REP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TLRV_TRADE_REP
*  INTO TABLE @DATA(IT_TLRV_TRADE_REP2).
*--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_TLRV_TRADE_REP INDEX 1 INTO DATA(WA_TLRV_TRADE_REP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TLRV_TRADE_REP>-MANDT = 1.
<TLRV_TRADE_REP>-TREP_ID_TRP = 1.
<TLRV_TRADE_REP>-REP_TYPE_MSG = 1.
<TLRV_TRADE_REP>-TREP_ID = 1.
<TLRV_TRADE_REP>-REP_TYPE_RPT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TLRV_TRADE_REP-LEGAL_BASE, sy-vline,
  WA_TLRV_TRADE_REP-GRANULARITY, sy-vline,
  WA_TLRV_TRADE_REP-TERM_END, sy-vline,
  WA_TLRV_TRADE_REP-SEPARATE_VALUATION, sy-vline,
  WA_TLRV_TRADE_REP-SEPARATE_COLLATERAL, sy-vline,
  WA_TLRV_TRADE_REP-PREFIX, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TLRV_TRADE_REP 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_TLRV_TRADE_REP 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_TLRV_TRADE_REP INTO WA_TLRV_TRADE_REP.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_TLRV_TRADE_REP_STR, 
MANDT TYPE STRING,
TREP_ID_TRP TYPE STRING,
REP_TYPE_MSG TYPE STRING,
TREP_ID TYPE STRING,
REP_TYPE_RPT TYPE STRING,
LEGAL_BASE TYPE STRING,
GRANULARITY TYPE STRING,
TERM_END TYPE STRING,
SEPARATE_VALUATION TYPE STRING,
SEPARATE_COLLATERAL TYPE STRING,
PREFIX TYPE STRING,
USE_LOGICAL TYPE STRING,
FOLDER_OUT_LGC TYPE STRING,
FOLDER_IN_LGC TYPE STRING,
FOLDER_OUT TYPE STRING,
FOLDER_IN TYPE STRING,
TREP_ID_MSG TYPE STRING,
REP_CAT TYPE STRING,
REP_CONTEXT TYPE STRING,
TREP_DESCR_CLIENT TYPE STRING,
REP_TYPE_DESCR TYPE STRING,
TREP_DESCR TYPE STRING,
LEGAL_BASE_DESCR TYPE STRING,
DMEE_TREEID_NEW TYPE STRING,
DMEE_TREEID_MOD TYPE STRING,
DMEE_TREEID_MODV TYPE STRING,
DMEE_TREEID_VAL TYPE STRING,
DMEE_TREEID_COL TYPE STRING,
DMEE_TREEID_ERR TYPE STRING,
DMEE_TREEID_CAN TYPE STRING,
DMEE_TREEID_TER TYPE STRING,
DMEE_TREEID_PRE TYPE STRING,
DMEE_TREEID_COM TYPE STRING,
DMEE_TREEID_BKL TYPE STRING,
REP_CUTOFF_DATE TYPE STRING,
REP_SEND_DATE TYPE STRING,
REP_START_DATE TYPE STRING,
DMEE_TREEID_UTI TYPE STRING,
FOLDER_ARC_LOG TYPE STRING,
FOLDER_ERR_LOG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TLRV_TRADE_REP_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_TLRV_TRADE_REP_STR-MANDT sy-vline 
WA_TLRV_TRADE_REP_STR-TREP_ID_TRP sy-vline 
WA_TLRV_TRADE_REP_STR-REP_TYPE_MSG sy-vline 
WA_TLRV_TRADE_REP_STR-TREP_ID sy-vline 
WA_TLRV_TRADE_REP_STR-REP_TYPE_RPT sy-vline 
WA_TLRV_TRADE_REP_STR-LEGAL_BASE sy-vline 
WA_TLRV_TRADE_REP_STR-GRANULARITY sy-vline 
WA_TLRV_TRADE_REP_STR-TERM_END sy-vline 
WA_TLRV_TRADE_REP_STR-SEPARATE_VALUATION sy-vline 
WA_TLRV_TRADE_REP_STR-SEPARATE_COLLATERAL sy-vline 
WA_TLRV_TRADE_REP_STR-PREFIX sy-vline 
WA_TLRV_TRADE_REP_STR-USE_LOGICAL sy-vline 
WA_TLRV_TRADE_REP_STR-FOLDER_OUT_LGC sy-vline 
WA_TLRV_TRADE_REP_STR-FOLDER_IN_LGC sy-vline 
WA_TLRV_TRADE_REP_STR-FOLDER_OUT sy-vline 
WA_TLRV_TRADE_REP_STR-FOLDER_IN sy-vline 
WA_TLRV_TRADE_REP_STR-TREP_ID_MSG sy-vline 
WA_TLRV_TRADE_REP_STR-REP_CAT sy-vline 
WA_TLRV_TRADE_REP_STR-REP_CONTEXT sy-vline 
WA_TLRV_TRADE_REP_STR-TREP_DESCR_CLIENT sy-vline 
WA_TLRV_TRADE_REP_STR-REP_TYPE_DESCR sy-vline 
WA_TLRV_TRADE_REP_STR-TREP_DESCR sy-vline 
WA_TLRV_TRADE_REP_STR-LEGAL_BASE_DESCR sy-vline 
WA_TLRV_TRADE_REP_STR-DMEE_TREEID_NEW sy-vline 
WA_TLRV_TRADE_REP_STR-DMEE_TREEID_MOD sy-vline 
WA_TLRV_TRADE_REP_STR-DMEE_TREEID_MODV sy-vline 
WA_TLRV_TRADE_REP_STR-DMEE_TREEID_VAL sy-vline 
WA_TLRV_TRADE_REP_STR-DMEE_TREEID_COL sy-vline 
WA_TLRV_TRADE_REP_STR-DMEE_TREEID_ERR sy-vline 
WA_TLRV_TRADE_REP_STR-DMEE_TREEID_CAN sy-vline 
WA_TLRV_TRADE_REP_STR-DMEE_TREEID_TER sy-vline 
WA_TLRV_TRADE_REP_STR-DMEE_TREEID_PRE sy-vline 
WA_TLRV_TRADE_REP_STR-DMEE_TREEID_COM sy-vline 
WA_TLRV_TRADE_REP_STR-DMEE_TREEID_BKL sy-vline 
WA_TLRV_TRADE_REP_STR-REP_CUTOFF_DATE sy-vline 
WA_TLRV_TRADE_REP_STR-REP_SEND_DATE sy-vline 
WA_TLRV_TRADE_REP_STR-REP_START_DATE sy-vline 
WA_TLRV_TRADE_REP_STR-DMEE_TREEID_UTI sy-vline 
WA_TLRV_TRADE_REP_STR-FOLDER_ARC_LOG sy-vline 
WA_TLRV_TRADE_REP_STR-FOLDER_ERR_LOG sy-vline      INTO ld_text SEPARATED BY SPACE.

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