ABAP Select data from SAP table TBCL into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TBCL
*  INTO TABLE @DATA(IT_TBCL2).
*--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_TBCL INDEX 1 INTO DATA(WA_TBCL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TBCL>-MANDT = 1.
<TBCL>-PROFILE = 1.
<TBCL>-TYPE = 1.
<TBCL>-HLT = 1.
<TBCL>-LAYER_TYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TBCL-FIRSTDATE, sy-vline,
  WA_TBCL-SECONDDATE, sy-vline,
  WA_TBCL-HEIGHT, sy-vline,
  WA_TBCL-OFFSET, sy-vline,
  WA_TBCL-SYMBOLTYPE, sy-vline,
  WA_TBCL-FMT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TBCL 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_TBCL 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_TBCL INTO WA_TBCL.


*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_TBCL_STR, 
MANDT TYPE STRING,
PROFILE TYPE STRING,
TYPE TYPE STRING,
HLT TYPE STRING,
LAYER_TYPE TYPE STRING,
FIRSTDATE TYPE STRING,
SECONDDATE TYPE STRING,
HEIGHT TYPE STRING,
OFFSET TYPE STRING,
SYMBOLTYPE TYPE STRING,
FMT TYPE STRING,
LAYPRIO TYPE STRING,
GAPTYPE TYPE STRING,
GAPHLT TYPE STRING,
BMP_FILE TYPE STRING,
NOT_MOVE TYPE STRING,
HOR_OFFSET TYPE STRING,
NULL_SHOW TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TBCL_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_TBCL_STR-MANDT sy-vline 
WA_TBCL_STR-PROFILE sy-vline 
WA_TBCL_STR-TYPE sy-vline 
WA_TBCL_STR-HLT sy-vline 
WA_TBCL_STR-LAYER_TYPE sy-vline 
WA_TBCL_STR-FIRSTDATE sy-vline 
WA_TBCL_STR-SECONDDATE sy-vline 
WA_TBCL_STR-HEIGHT sy-vline 
WA_TBCL_STR-OFFSET sy-vline 
WA_TBCL_STR-SYMBOLTYPE sy-vline 
WA_TBCL_STR-FMT sy-vline 
WA_TBCL_STR-LAYPRIO sy-vline 
WA_TBCL_STR-GAPTYPE sy-vline 
WA_TBCL_STR-GAPHLT sy-vline 
WA_TBCL_STR-BMP_FILE sy-vline 
WA_TBCL_STR-NOT_MOVE sy-vline 
WA_TBCL_STR-HOR_OFFSET sy-vline 
WA_TBCL_STR-NULL_SHOW sy-vline      INTO ld_text SEPARATED BY SPACE.

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