ABAP Select data from SAP table TPL_ENV_SCR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TPL_ENV_SCR
*  INTO TABLE @DATA(IT_TPL_ENV_SCR2).
*--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_TPL_ENV_SCR INDEX 1 INTO DATA(WA_TPL_ENV_SCR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TPL_ENV_SCR>-NAMESPACE = 1.
<TPL_ENV_SCR>-ENVIRONMNT = 1.
<TPL_ENV_SCR>-LOG_FUNC = 1.
<TPL_ENV_SCR>-LNAME = 1.
<TPL_ENV_SCR>-RLNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TPL_ENV_SCR-LTEXT, sy-vline,
  WA_TPL_ENV_SCR-DOKU, sy-vline,
  WA_TPL_ENV_SCR-TABLENAME, sy-vline,
  WA_TPL_ENV_SCR-FIELDNAME, sy-vline,
  WA_TPL_ENV_SCR-ABAP_FUNCT, sy-vline,
  WA_TPL_ENV_SCR-RESFIELD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TPL_ENV_SCR 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_TPL_ENV_SCR 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_TPL_ENV_SCR INTO WA_TPL_ENV_SCR.


*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_TPL_ENV_SCR_STR, 
NAMESPACE TYPE STRING,
ENVIRONMNT TYPE STRING,
LOG_FUNC TYPE STRING,
LNAME TYPE STRING,
RLNAME TYPE STRING,
LTEXT TYPE STRING,
DOKU TYPE STRING,
TABLENAME TYPE STRING,
FIELDNAME TYPE STRING,
ABAP_FUNCT TYPE STRING,
RESFIELD TYPE STRING,
RESFUNCTION TYPE STRING,
RESPARAM TYPE STRING,
COMPLINE TYPE STRING,
LOG_FUNCTP TYPE STRING,
PARAMTYPE TYPE STRING,
REF_TABLE TYPE STRING,
FCODE TYPE STRING,
ENV_TEXT TYPE STRING,
TABLE_TEXT TYPE STRING,
FIELD_TEXT TYPE STRING,
ABAP_FCT_TEXT TYPE STRING,
REFTABLE_TEXT TYPE STRING,
PARAMTYPE_TEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TPL_ENV_SCR_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_TPL_ENV_SCR_STR-NAMESPACE sy-vline 
WA_TPL_ENV_SCR_STR-ENVIRONMNT sy-vline 
WA_TPL_ENV_SCR_STR-LOG_FUNC sy-vline 
WA_TPL_ENV_SCR_STR-LNAME sy-vline 
WA_TPL_ENV_SCR_STR-RLNAME sy-vline 
WA_TPL_ENV_SCR_STR-LTEXT sy-vline 
WA_TPL_ENV_SCR_STR-DOKU sy-vline 
WA_TPL_ENV_SCR_STR-TABLENAME sy-vline 
WA_TPL_ENV_SCR_STR-FIELDNAME sy-vline 
WA_TPL_ENV_SCR_STR-ABAP_FUNCT sy-vline 
WA_TPL_ENV_SCR_STR-RESFIELD sy-vline 
WA_TPL_ENV_SCR_STR-RESFUNCTION sy-vline 
WA_TPL_ENV_SCR_STR-RESPARAM sy-vline 
WA_TPL_ENV_SCR_STR-COMPLINE sy-vline 
WA_TPL_ENV_SCR_STR-LOG_FUNCTP sy-vline 
WA_TPL_ENV_SCR_STR-PARAMTYPE sy-vline 
WA_TPL_ENV_SCR_STR-REF_TABLE sy-vline 
WA_TPL_ENV_SCR_STR-FCODE sy-vline 
WA_TPL_ENV_SCR_STR-ENV_TEXT sy-vline 
WA_TPL_ENV_SCR_STR-TABLE_TEXT sy-vline 
WA_TPL_ENV_SCR_STR-FIELD_TEXT sy-vline 
WA_TPL_ENV_SCR_STR-ABAP_FCT_TEXT sy-vline 
WA_TPL_ENV_SCR_STR-REFTABLE_TEXT sy-vline 
WA_TPL_ENV_SCR_STR-PARAMTYPE_TEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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