ABAP Select data from SAP table /PF1/DB_TMPL_TCH into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /PF1/DB_TMPL_TCH 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 /PF1/DB_TMPL_TCH. 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 /PF1/DB_TMPL_TCH 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_/PF1/DB_TMPL_TCH TYPE STANDARD TABLE OF /PF1/DB_TMPL_TCH,
      WA_/PF1/DB_TMPL_TCH TYPE /PF1/DB_TMPL_TCH,
      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: </PF1/DB_TMPL_TCH> TYPE /PF1/DB_TMPL_TCH.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/PF1/DB_TMPL_TCH.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /PF1/DB_TMPL_TCH
  INTO TABLE IT_/PF1/DB_TMPL_TCH.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /PF1/DB_TMPL_TCH
*  INTO TABLE @DATA(IT_/PF1/DB_TMPL_TCH2).
*--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_/PF1/DB_TMPL_TCH INDEX 1 INTO DATA(WA_/PF1/DB_TMPL_TCH2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/PF1/DB_TMPL_TCH ASSIGNING </PF1/DB_TMPL_TCH>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</PF1/DB_TMPL_TCH>-CLIENT = 1.
</PF1/DB_TMPL_TCH>-CLEARING_AREA = 1.
</PF1/DB_TMPL_TCH>-TEMPLATE_PI_KEY = 1.
</PF1/DB_TMPL_TCH>-TCHN_POSITION = 1.
</PF1/DB_TMPL_TCH>-BIC = 1.

ENDLOOP.

LOOP AT IT_/PF1/DB_TMPL_TCH INTO WA_/PF1/DB_TMPL_TCH.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/PF1/DB_TMPL_TCH-TCHN_BIC_INFO, sy-vline,
  WA_/PF1/DB_TMPL_TCH-COUNTRY, sy-vline,
  WA_/PF1/DB_TMPL_TCH-BANKKEY, sy-vline,
  WA_/PF1/DB_TMPL_TCH-NAME, sy-vline,
  WA_/PF1/DB_TMPL_TCH-OTHER_ID, sy-vline,
  WA_/PF1/DB_TMPL_TCH-OTHER_ID_CODE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/PF1/DB_TMPL_TCH 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_/PF1/DB_TMPL_TCH 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_/PF1/DB_TMPL_TCH INTO WA_/PF1/DB_TMPL_TCH.


*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_/PF1/DB_TMPL_TCH_STR, 
CLIENT TYPE STRING,
CLEARING_AREA TYPE STRING,
TEMPLATE_PI_KEY TYPE STRING,
TCHN_POSITION TYPE STRING,
BIC TYPE STRING,
TCHN_BIC_INFO TYPE STRING,
COUNTRY TYPE STRING,
BANKKEY TYPE STRING,
NAME TYPE STRING,
OTHER_ID TYPE STRING,
OTHER_ID_CODE TYPE STRING,
OTHER_ID_PRTRY TYPE STRING,
OTHER_ID_ISSUER TYPE STRING,
ADDRESS_TYPE TYPE STRING,
DEPARTMENT TYPE STRING,
SUB_DEPARTMENT TYPE STRING,
STREETNAME TYPE STRING,
BUILDINGNUMBER TYPE STRING,
POSTALCODE TYPE STRING,
TOWNNAME TYPE STRING,
COUNTRYSUBDIV TYPE STRING,
COUNTRY_ADDR TYPE STRING,
ADDR_LINE1 TYPE STRING,
ADDR_LINE2 TYPE STRING,
ADDR_LINE3 TYPE STRING,
ADDR_LINE4 TYPE STRING,
ADDR_LINE5 TYPE STRING,
ADDR_LINE6 TYPE STRING,
ADDR_LINE7 TYPE STRING,
CLR_SYS_CODE TYPE STRING,
CLR_SYS_PRTRY TYPE STRING,
CLR_SYS_ID TYPE STRING,
IBAN TYPE STRING,
ACCT_NO TYPE STRING,
ACCT_CODE TYPE STRING,
ACCT_PRTRY TYPE STRING,
ACCT_ISSUER TYPE STRING,
ACCT_TYPE_CD TYPE STRING,
ACCT_TYPE_PRTRY TYPE STRING,
ACCT_CUR TYPE STRING,
HOLDER TYPE STRING,
BANK_TYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/PF1/DB_TMPL_TCH_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_/PF1/DB_TMPL_TCH_STR-CLIENT sy-vline 
WA_/PF1/DB_TMPL_TCH_STR-CLEARING_AREA sy-vline 
WA_/PF1/DB_TMPL_TCH_STR-TEMPLATE_PI_KEY sy-vline 
WA_/PF1/DB_TMPL_TCH_STR-TCHN_POSITION sy-vline 
WA_/PF1/DB_TMPL_TCH_STR-BIC sy-vline 
WA_/PF1/DB_TMPL_TCH_STR-TCHN_BIC_INFO sy-vline 
WA_/PF1/DB_TMPL_TCH_STR-COUNTRY sy-vline 
WA_/PF1/DB_TMPL_TCH_STR-BANKKEY sy-vline 
WA_/PF1/DB_TMPL_TCH_STR-NAME sy-vline 
WA_/PF1/DB_TMPL_TCH_STR-OTHER_ID sy-vline 
WA_/PF1/DB_TMPL_TCH_STR-OTHER_ID_CODE sy-vline 
WA_/PF1/DB_TMPL_TCH_STR-OTHER_ID_PRTRY sy-vline 
WA_/PF1/DB_TMPL_TCH_STR-OTHER_ID_ISSUER sy-vline 
WA_/PF1/DB_TMPL_TCH_STR-ADDRESS_TYPE sy-vline 
WA_/PF1/DB_TMPL_TCH_STR-DEPARTMENT sy-vline 
WA_/PF1/DB_TMPL_TCH_STR-SUB_DEPARTMENT sy-vline 
WA_/PF1/DB_TMPL_TCH_STR-STREETNAME sy-vline 
WA_/PF1/DB_TMPL_TCH_STR-BUILDINGNUMBER sy-vline 
WA_/PF1/DB_TMPL_TCH_STR-POSTALCODE sy-vline 
WA_/PF1/DB_TMPL_TCH_STR-TOWNNAME sy-vline 
WA_/PF1/DB_TMPL_TCH_STR-COUNTRYSUBDIV sy-vline 
WA_/PF1/DB_TMPL_TCH_STR-COUNTRY_ADDR sy-vline 
WA_/PF1/DB_TMPL_TCH_STR-ADDR_LINE1 sy-vline 
WA_/PF1/DB_TMPL_TCH_STR-ADDR_LINE2 sy-vline 
WA_/PF1/DB_TMPL_TCH_STR-ADDR_LINE3 sy-vline 
WA_/PF1/DB_TMPL_TCH_STR-ADDR_LINE4 sy-vline 
WA_/PF1/DB_TMPL_TCH_STR-ADDR_LINE5 sy-vline 
WA_/PF1/DB_TMPL_TCH_STR-ADDR_LINE6 sy-vline 
WA_/PF1/DB_TMPL_TCH_STR-ADDR_LINE7 sy-vline 
WA_/PF1/DB_TMPL_TCH_STR-CLR_SYS_CODE sy-vline 
WA_/PF1/DB_TMPL_TCH_STR-CLR_SYS_PRTRY sy-vline 
WA_/PF1/DB_TMPL_TCH_STR-CLR_SYS_ID sy-vline 
WA_/PF1/DB_TMPL_TCH_STR-IBAN sy-vline 
WA_/PF1/DB_TMPL_TCH_STR-ACCT_NO sy-vline 
WA_/PF1/DB_TMPL_TCH_STR-ACCT_CODE sy-vline 
WA_/PF1/DB_TMPL_TCH_STR-ACCT_PRTRY sy-vline 
WA_/PF1/DB_TMPL_TCH_STR-ACCT_ISSUER sy-vline 
WA_/PF1/DB_TMPL_TCH_STR-ACCT_TYPE_CD sy-vline 
WA_/PF1/DB_TMPL_TCH_STR-ACCT_TYPE_PRTRY sy-vline 
WA_/PF1/DB_TMPL_TCH_STR-ACCT_CUR sy-vline 
WA_/PF1/DB_TMPL_TCH_STR-HOLDER sy-vline 
WA_/PF1/DB_TMPL_TCH_STR-BANK_TYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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