ABAP Select data from SAP table TPICOLAC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TPICOLAC
*  INTO TABLE @DATA(IT_TPICOLAC2).
*--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_TPICOLAC INDEX 1 INTO DATA(WA_TPICOLAC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TPICOLAC>-ROWNAME = 1.
<TPICOLAC>-NAME = 1.
<TPICOLAC>-WIDTH = 1.
<TPICOLAC>-WIDTH_U = 1.
<TPICOLAC>-FIXED = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TPICOLAC-INTENSITY, sy-vline,
  WA_TPICOLAC-LLEFT, sy-vline,
  WA_TPICOLAC-LLEFT_U, sy-vline,
  WA_TPICOLAC-LTOP, sy-vline,
  WA_TPICOLAC-LTOP_U, sy-vline,
  WA_TPICOLAC-LRIGHT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TPICOLAC 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_TPICOLAC 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_TPICOLAC INTO WA_TPICOLAC.


*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_TPICOLAC_STR, 
ROWNAME TYPE STRING,
NAME TYPE STRING,
WIDTH TYPE STRING,
WIDTH_U TYPE STRING,
FIXED TYPE STRING,
INTENSITY TYPE STRING,
LLEFT TYPE STRING,
LLEFT_U TYPE STRING,
LTOP TYPE STRING,
LTOP_U TYPE STRING,
LRIGHT TYPE STRING,
LRIGHT_U TYPE STRING,
LBOTTOM TYPE STRING,
LBOTTOM_U TYPE STRING,
FILLCOLOR TYPE STRING,
RED TYPE STRING,
GREEN TYPE STRING,
BLUE TYPE STRING,
USED TYPE STRING,
CLEFT TYPE STRING,
RED TYPE STRING,
GREEN TYPE STRING,
BLUE TYPE STRING,
USED TYPE STRING,
CTOP TYPE STRING,
RED TYPE STRING,
GREEN TYPE STRING,
BLUE TYPE STRING,
USED TYPE STRING,
CRIGHT TYPE STRING,
RED TYPE STRING,
GREEN TYPE STRING,
BLUE TYPE STRING,
USED TYPE STRING,
CBOTTOM TYPE STRING,
RED TYPE STRING,
GREEN TYPE STRING,
BLUE TYPE STRING,
USED TYPE STRING,
HIGHLIGHTD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TPICOLAC_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_TPICOLAC_STR-ROWNAME sy-vline 
WA_TPICOLAC_STR-NAME sy-vline 
WA_TPICOLAC_STR-WIDTH sy-vline 
WA_TPICOLAC_STR-WIDTH_U sy-vline 
WA_TPICOLAC_STR-FIXED sy-vline 
WA_TPICOLAC_STR-INTENSITY sy-vline 
WA_TPICOLAC_STR-LLEFT sy-vline 
WA_TPICOLAC_STR-LLEFT_U sy-vline 
WA_TPICOLAC_STR-LTOP sy-vline 
WA_TPICOLAC_STR-LTOP_U sy-vline 
WA_TPICOLAC_STR-LRIGHT sy-vline 
WA_TPICOLAC_STR-LRIGHT_U sy-vline 
WA_TPICOLAC_STR-LBOTTOM sy-vline 
WA_TPICOLAC_STR-LBOTTOM_U sy-vline 
WA_TPICOLAC_STR-FILLCOLOR sy-vline 
WA_TPICOLAC_STR-RED sy-vline 
WA_TPICOLAC_STR-GREEN sy-vline 
WA_TPICOLAC_STR-BLUE sy-vline 
WA_TPICOLAC_STR-USED sy-vline 
WA_TPICOLAC_STR-CLEFT sy-vline 
WA_TPICOLAC_STR-RED sy-vline 
WA_TPICOLAC_STR-GREEN sy-vline 
WA_TPICOLAC_STR-BLUE sy-vline 
WA_TPICOLAC_STR-USED sy-vline 
WA_TPICOLAC_STR-CTOP sy-vline 
WA_TPICOLAC_STR-RED sy-vline 
WA_TPICOLAC_STR-GREEN sy-vline 
WA_TPICOLAC_STR-BLUE sy-vline 
WA_TPICOLAC_STR-USED sy-vline 
WA_TPICOLAC_STR-CRIGHT sy-vline 
WA_TPICOLAC_STR-RED sy-vline 
WA_TPICOLAC_STR-GREEN sy-vline 
WA_TPICOLAC_STR-BLUE sy-vline 
WA_TPICOLAC_STR-USED sy-vline 
WA_TPICOLAC_STR-CBOTTOM sy-vline 
WA_TPICOLAC_STR-RED sy-vline 
WA_TPICOLAC_STR-GREEN sy-vline 
WA_TPICOLAC_STR-BLUE sy-vline 
WA_TPICOLAC_STR-USED sy-vline 
WA_TPICOLAC_STR-HIGHLIGHTD sy-vline      INTO ld_text SEPARATED BY SPACE.

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