ABAP Select data from SAP table TBTCM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TBTCM
*  INTO TABLE @DATA(IT_TBTCM2).
*--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_TBTCM INDEX 1 INTO DATA(WA_TBTCM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TBTCM>-JOBNAME = 1.
<TBTCM>-JOBCOUNT = 1.
<TBTCM>-JOBGROUP = 1.
<TBTCM>-INTREPORT = 1.
<TBTCM>-SDLUNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TBTCM-AUTHCKNAM, sy-vline,
  WA_TBTCM-AUTHCKMAN, sy-vline,
  WA_TBTCM-SUCCNUM, sy-vline,
  WA_TBTCM-DELANFREP, sy-vline,
  WA_TBTCM-SDLFLAG, sy-vline,
  WA_TBTCM-STEPCOUNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TBTCM 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_TBTCM 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_TBTCM INTO WA_TBTCM.


*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_TBTCM_STR, 
JOBNAME TYPE STRING,
JOBCOUNT TYPE STRING,
JOBGROUP TYPE STRING,
INTREPORT TYPE STRING,
SDLUNAME TYPE STRING,
AUTHCKNAM TYPE STRING,
AUTHCKMAN TYPE STRING,
SUCCNUM TYPE STRING,
DELANFREP TYPE STRING,
SDLFLAG TYPE STRING,
STEPCOUNT TYPE STRING,
XPGACTIVE TYPE STRING,
JOBLOG TYPE STRING,
EVENTID TYPE STRING,
EVENTPARM TYPE STRING,
JOBCLASS TYPE STRING,
PRIORITY TYPE STRING,
STATUS TYPE STRING,
XPGTERMCTL TYPE STRING,
STEPFLAG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TBTCM_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_TBTCM_STR-JOBNAME sy-vline 
WA_TBTCM_STR-JOBCOUNT sy-vline 
WA_TBTCM_STR-JOBGROUP sy-vline 
WA_TBTCM_STR-INTREPORT sy-vline 
WA_TBTCM_STR-SDLUNAME sy-vline 
WA_TBTCM_STR-AUTHCKNAM sy-vline 
WA_TBTCM_STR-AUTHCKMAN sy-vline 
WA_TBTCM_STR-SUCCNUM sy-vline 
WA_TBTCM_STR-DELANFREP sy-vline 
WA_TBTCM_STR-SDLFLAG sy-vline 
WA_TBTCM_STR-STEPCOUNT sy-vline 
WA_TBTCM_STR-XPGACTIVE sy-vline 
WA_TBTCM_STR-JOBLOG sy-vline 
WA_TBTCM_STR-EVENTID sy-vline 
WA_TBTCM_STR-EVENTPARM sy-vline 
WA_TBTCM_STR-JOBCLASS sy-vline 
WA_TBTCM_STR-PRIORITY sy-vline 
WA_TBTCM_STR-STATUS sy-vline 
WA_TBTCM_STR-XPGTERMCTL sy-vline 
WA_TBTCM_STR-STEPFLAG sy-vline      INTO ld_text SEPARATED BY SPACE.

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