ABAP Select data from SAP table TLCS_SCREEN_COLLTRL_FIELDS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TLCS_SCREEN_COLLTRL_FIELDS
*  INTO TABLE @DATA(IT_TLCS_SCREEN_COLLTRL_FIELDS2).
*--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_TLCS_SCREEN_COLLTRL_FIELDS INDEX 1 INTO DATA(WA_TLCS_SCREEN_COLLTRL_FIELDS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TLCS_SCREEN_COLLTRL_FIELDS>-SFHAZBA = 1.
<TLCS_SCREEN_COLLTRL_FIELDS>-XBEWART = 1.
<TLCS_SCREEN_COLLTRL_FIELDS>-SSIGN = 1.
<TLCS_SCREEN_COLLTRL_FIELDS>-BZBETR = 1.
<TLCS_SCREEN_COLLTRL_FIELDS>-XZBETR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TLCS_SCREEN_COLLTRL_FIELDS-WZBETR, sy-vline,
  WA_TLCS_SCREEN_COLLTRL_FIELDS-DZTERM, sy-vline,
  WA_TLCS_SCREEN_COLLTRL_FIELDS-XZTERM, sy-vline,
  WA_TLCS_SCREEN_COLLTRL_FIELDS-POSITION_AMT, sy-vline,
  WA_TLCS_SCREEN_COLLTRL_FIELDS-POSITION_CURR, sy-vline,
  WA_TLCS_SCREEN_COLLTRL_FIELDS-SBEWEBE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TLCS_SCREEN_COLLTRL_FIELDS 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_TLCS_SCREEN_COLLTRL_FIELDS 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_TLCS_SCREEN_COLLTRL_FIELDS INTO WA_TLCS_SCREEN_COLLTRL_FIELDS.


*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_TLCS_SCREEN_COLLTRL_FIELDS_STR, 
SFHAZBA TYPE STRING,
XBEWART TYPE STRING,
SSIGN TYPE STRING,
BZBETR TYPE STRING,
XZBETR TYPE STRING,
WZBETR TYPE STRING,
DZTERM TYPE STRING,
XZTERM TYPE STRING,
POSITION_AMT TYPE STRING,
POSITION_CURR TYPE STRING,
SBEWEBE TYPE STRING,
XBEWEBE TYPE STRING,
SBFREI TYPE STRING,
SSPRGRD TYPE STRING,
CHANGED TYPE STRING,
INDEX_DATABIN TYPE STRING,
KEY_DATABIN TYPE STRING,
SSELECTED TYPE STRING,
SMODIFIED TYPE STRING,
SVALIDATED TYPE STRING,
SNEW TYPE STRING,
SDELETED TYPE STRING,
SNOT_MODIFIABLE TYPE STRING,
SNOT_DELETABLE TYPE STRING,
SNOT_REVERSABLE TYPE STRING,
SNOT_LOCKABLE TYPE STRING,
SNOT_RELEASABLE TYPE STRING,
SMAN_POSTABLE TYPE STRING,
IS_AUTO_FLOW TYPE STRING,
SSTOGRD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TLCS_SCREEN_COLLTRL_FIELDS_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_TLCS_SCREEN_COLLTRL_FIELDS_STR-SFHAZBA sy-vline 
WA_TLCS_SCREEN_COLLTRL_FIELDS_STR-XBEWART sy-vline 
WA_TLCS_SCREEN_COLLTRL_FIELDS_STR-SSIGN sy-vline 
WA_TLCS_SCREEN_COLLTRL_FIELDS_STR-BZBETR sy-vline 
WA_TLCS_SCREEN_COLLTRL_FIELDS_STR-XZBETR sy-vline 
WA_TLCS_SCREEN_COLLTRL_FIELDS_STR-WZBETR sy-vline 
WA_TLCS_SCREEN_COLLTRL_FIELDS_STR-DZTERM sy-vline 
WA_TLCS_SCREEN_COLLTRL_FIELDS_STR-XZTERM sy-vline 
WA_TLCS_SCREEN_COLLTRL_FIELDS_STR-POSITION_AMT sy-vline 
WA_TLCS_SCREEN_COLLTRL_FIELDS_STR-POSITION_CURR sy-vline 
WA_TLCS_SCREEN_COLLTRL_FIELDS_STR-SBEWEBE sy-vline 
WA_TLCS_SCREEN_COLLTRL_FIELDS_STR-XBEWEBE sy-vline 
WA_TLCS_SCREEN_COLLTRL_FIELDS_STR-SBFREI sy-vline 
WA_TLCS_SCREEN_COLLTRL_FIELDS_STR-SSPRGRD sy-vline 
WA_TLCS_SCREEN_COLLTRL_FIELDS_STR-CHANGED sy-vline 
WA_TLCS_SCREEN_COLLTRL_FIELDS_STR-INDEX_DATABIN sy-vline 
WA_TLCS_SCREEN_COLLTRL_FIELDS_STR-KEY_DATABIN sy-vline 
WA_TLCS_SCREEN_COLLTRL_FIELDS_STR-SSELECTED sy-vline 
WA_TLCS_SCREEN_COLLTRL_FIELDS_STR-SMODIFIED sy-vline 
WA_TLCS_SCREEN_COLLTRL_FIELDS_STR-SVALIDATED sy-vline 
WA_TLCS_SCREEN_COLLTRL_FIELDS_STR-SNEW sy-vline 
WA_TLCS_SCREEN_COLLTRL_FIELDS_STR-SDELETED sy-vline 
WA_TLCS_SCREEN_COLLTRL_FIELDS_STR-SNOT_MODIFIABLE sy-vline 
WA_TLCS_SCREEN_COLLTRL_FIELDS_STR-SNOT_DELETABLE sy-vline 
WA_TLCS_SCREEN_COLLTRL_FIELDS_STR-SNOT_REVERSABLE sy-vline 
WA_TLCS_SCREEN_COLLTRL_FIELDS_STR-SNOT_LOCKABLE sy-vline 
WA_TLCS_SCREEN_COLLTRL_FIELDS_STR-SNOT_RELEASABLE sy-vline 
WA_TLCS_SCREEN_COLLTRL_FIELDS_STR-SMAN_POSTABLE sy-vline 
WA_TLCS_SCREEN_COLLTRL_FIELDS_STR-IS_AUTO_FLOW sy-vline 
WA_TLCS_SCREEN_COLLTRL_FIELDS_STR-SSTOGRD sy-vline      INTO ld_text SEPARATED BY SPACE.

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