ABAP Select data from SAP table TRDC_REC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TRDC_REC
*  INTO TABLE @DATA(IT_TRDC_REC2).
*--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_TRDC_REC INDEX 1 INTO DATA(WA_TRDC_REC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TRDC_REC>-MANDT = 1.
<TRDC_REC>-BUKRS = 1.
<TRDC_REC>-RANL = 1.
<TRDC_REC>-SBEWART = 1.
<TRDC_REC>-SLFDNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TRDC_REC-SPLANIST, sy-vline,
  WA_TRDC_REC-SREFBEW, sy-vline,
  WA_TRDC_REC-SBEWZITI, sy-vline,
  WA_TRDC_REC-SREFZITI, sy-vline,
  WA_TRDC_REC-S_SSDREF, sy-vline,
  WA_TRDC_REC-SREVALEXCL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TRDC_REC 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_TRDC_REC 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_TRDC_REC INTO WA_TRDC_REC.


*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 RANL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TRDC_REC-RANL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TRDC_REC-RANL.
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_TRDC_REC_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
RANL TYPE STRING,
SBEWART TYPE STRING,
SLFDNR TYPE STRING,
SPLANIST TYPE STRING,
SREFBEW TYPE STRING,
SBEWZITI TYPE STRING,
SREFZITI TYPE STRING,
S_SSDREF TYPE STRING,
SREVALEXCL TYPE STRING,
SWOHER TYPE STRING,
DGUEL_KK TYPE STRING,
SKOART TYPE STRING,
SVORGANG TYPE STRING,
ACENV TYPE STRING,
DGUEL_KP TYPE STRING,
NSTUFE TYPE STRING,
SVORGKZ TYPE STRING,
SSOLHAB TYPE STRING,
SBERFIMA TYPE STRING,
SSTCKKZ TYPE STRING,
SZBMETH TYPE STRING,
STGMETH TYPE STRING,
STGBASIS TYPE STRING,
ABASTAGE TYPE STRING,
PKOND TYPE STRING,
DPKOND TYPE STRING,
SBASIS TYPE STRING,
JSOFVERR TYPE STRING,
DVALUT TYPE STRING,
SINCL TYPE STRING,
SVULT TYPE STRING,
DBERVON TYPE STRING,
SEXCLVON TYPE STRING,
SULTVON TYPE STRING,
DBERBIS TYPE STRING,
SINCLBIS TYPE STRING,
SULTBIS TYPE STRING,
ATAGE TYPE STRING,
DFAELL TYPE STRING,
DDISPO TYPE STRING,
DEPERIOD TYPE STRING,
SPEINCL TYPE STRING,
SPEULT TYPE STRING,
DVERRECH TYPE STRING,
SINCLVERR TYPE STRING,
SULTVERR TYPE STRING,
DBUDAT TYPE STRING,
SNWHR TYPE STRING,
BNWHR TYPE STRING,
SBWHR TYPE STRING,
BBWHR TYPE STRING,
SCWHR TYPE STRING,
BCWHR TYPE STRING,
BHWHR TYPE STRING,
BBASIS TYPE STRING,
PEFFZINS TYPE STRING,
SEFFMETH TYPE STRING,
DBPERIOD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TRDC_REC_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_TRDC_REC_STR-MANDT sy-vline 
WA_TRDC_REC_STR-BUKRS sy-vline 
WA_TRDC_REC_STR-RANL sy-vline 
WA_TRDC_REC_STR-SBEWART sy-vline 
WA_TRDC_REC_STR-SLFDNR sy-vline 
WA_TRDC_REC_STR-SPLANIST sy-vline 
WA_TRDC_REC_STR-SREFBEW sy-vline 
WA_TRDC_REC_STR-SBEWZITI sy-vline 
WA_TRDC_REC_STR-SREFZITI sy-vline 
WA_TRDC_REC_STR-S_SSDREF sy-vline 
WA_TRDC_REC_STR-SREVALEXCL sy-vline 
WA_TRDC_REC_STR-SWOHER sy-vline 
WA_TRDC_REC_STR-DGUEL_KK sy-vline 
WA_TRDC_REC_STR-SKOART sy-vline 
WA_TRDC_REC_STR-SVORGANG sy-vline 
WA_TRDC_REC_STR-ACENV sy-vline 
WA_TRDC_REC_STR-DGUEL_KP sy-vline 
WA_TRDC_REC_STR-NSTUFE sy-vline 
WA_TRDC_REC_STR-SVORGKZ sy-vline 
WA_TRDC_REC_STR-SSOLHAB sy-vline 
WA_TRDC_REC_STR-SBERFIMA sy-vline 
WA_TRDC_REC_STR-SSTCKKZ sy-vline 
WA_TRDC_REC_STR-SZBMETH sy-vline 
WA_TRDC_REC_STR-STGMETH sy-vline 
WA_TRDC_REC_STR-STGBASIS sy-vline 
WA_TRDC_REC_STR-ABASTAGE sy-vline 
WA_TRDC_REC_STR-PKOND sy-vline 
WA_TRDC_REC_STR-DPKOND sy-vline 
WA_TRDC_REC_STR-SBASIS sy-vline 
WA_TRDC_REC_STR-JSOFVERR sy-vline 
WA_TRDC_REC_STR-DVALUT sy-vline 
WA_TRDC_REC_STR-SINCL sy-vline 
WA_TRDC_REC_STR-SVULT sy-vline 
WA_TRDC_REC_STR-DBERVON sy-vline 
WA_TRDC_REC_STR-SEXCLVON sy-vline 
WA_TRDC_REC_STR-SULTVON sy-vline 
WA_TRDC_REC_STR-DBERBIS sy-vline 
WA_TRDC_REC_STR-SINCLBIS sy-vline 
WA_TRDC_REC_STR-SULTBIS sy-vline 
WA_TRDC_REC_STR-ATAGE sy-vline 
WA_TRDC_REC_STR-DFAELL sy-vline 
WA_TRDC_REC_STR-DDISPO sy-vline 
WA_TRDC_REC_STR-DEPERIOD sy-vline 
WA_TRDC_REC_STR-SPEINCL sy-vline 
WA_TRDC_REC_STR-SPEULT sy-vline 
WA_TRDC_REC_STR-DVERRECH sy-vline 
WA_TRDC_REC_STR-SINCLVERR sy-vline 
WA_TRDC_REC_STR-SULTVERR sy-vline 
WA_TRDC_REC_STR-DBUDAT sy-vline 
WA_TRDC_REC_STR-SNWHR sy-vline 
WA_TRDC_REC_STR-BNWHR sy-vline 
WA_TRDC_REC_STR-SBWHR sy-vline 
WA_TRDC_REC_STR-BBWHR sy-vline 
WA_TRDC_REC_STR-SCWHR sy-vline 
WA_TRDC_REC_STR-BCWHR sy-vline 
WA_TRDC_REC_STR-BHWHR sy-vline 
WA_TRDC_REC_STR-BBASIS sy-vline 
WA_TRDC_REC_STR-PEFFZINS sy-vline 
WA_TRDC_REC_STR-SEFFMETH sy-vline 
WA_TRDC_REC_STR-DBPERIOD sy-vline      INTO ld_text SEPARATED BY SPACE.

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