ABAP Select data from SAP table /SAPAPO/S_TTSTR_ADM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPAPO/S_TTSTR_ADM
*  INTO TABLE @DATA(IT_/SAPAPO/S_TTSTR_ADM2).
*--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_/SAPAPO/S_TTSTR_ADM INDEX 1 INTO DATA(WA_/SAPAPO/S_TTSTR_ADM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPAPO/S_TTSTR_ADM>-MANDT = 1.
</SAPAPO/S_TTSTR_ADM>-TSTRTYPE = 1.
</SAPAPO/S_TTSTR_ADM>-TSTREAMID = 1.
</SAPAPO/S_TTSTR_ADM>-CALENDARID = 1.
</SAPAPO/S_TTSTR_ADM>-RELID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPAPO/S_TTSTR_ADM-HANDLE, sy-vline,
  WA_/SAPAPO/S_TTSTR_ADM-BUFFEROPT, sy-vline,
  WA_/SAPAPO/S_TTSTR_ADM-CALCOPT, sy-vline,
  WA_/SAPAPO/S_TTSTR_ADM-GENOPT, sy-vline,
  WA_/SAPAPO/S_TTSTR_ADM-FLAGCONTIN, sy-vline,
  WA_/SAPAPO/S_TTSTR_ADM-TZONE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPAPO/S_TTSTR_ADM 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_/SAPAPO/S_TTSTR_ADM 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_/SAPAPO/S_TTSTR_ADM INTO WA_/SAPAPO/S_TTSTR_ADM.


*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_/SAPAPO/S_TTSTR_ADM_STR, 
MANDT TYPE STRING,
TSTRTYPE TYPE STRING,
TSTREAMID TYPE STRING,
CALENDARID TYPE STRING,
RELID TYPE STRING,
HANDLE TYPE STRING,
BUFFEROPT TYPE STRING,
CALCOPT TYPE STRING,
GENOPT TYPE STRING,
FLAGCONTIN TYPE STRING,
TZONE TYPE STRING,
SCOPEGENFW TYPE STRING,
SCOPEGENBW TYPE STRING,
CALIDGEN TYPE STRING,
FBGEN TYPE STRING,
TBGEN TYPE STRING,
FBDEL TYPE STRING,
RUNTRELEAS TYPE STRING,
FLAGEXTENT TYPE STRING,
CREATED TYPE STRING,
CREATEDBY TYPE STRING,
CHANGED TYPE STRING,
CHANGEDBY TYPE STRING,
GENERATE TYPE STRING,
GENERATEBY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPAPO/S_TTSTR_ADM_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_/SAPAPO/S_TTSTR_ADM_STR-MANDT sy-vline 
WA_/SAPAPO/S_TTSTR_ADM_STR-TSTRTYPE sy-vline 
WA_/SAPAPO/S_TTSTR_ADM_STR-TSTREAMID sy-vline 
WA_/SAPAPO/S_TTSTR_ADM_STR-CALENDARID sy-vline 
WA_/SAPAPO/S_TTSTR_ADM_STR-RELID sy-vline 
WA_/SAPAPO/S_TTSTR_ADM_STR-HANDLE sy-vline 
WA_/SAPAPO/S_TTSTR_ADM_STR-BUFFEROPT sy-vline 
WA_/SAPAPO/S_TTSTR_ADM_STR-CALCOPT sy-vline 
WA_/SAPAPO/S_TTSTR_ADM_STR-GENOPT sy-vline 
WA_/SAPAPO/S_TTSTR_ADM_STR-FLAGCONTIN sy-vline 
WA_/SAPAPO/S_TTSTR_ADM_STR-TZONE sy-vline 
WA_/SAPAPO/S_TTSTR_ADM_STR-SCOPEGENFW sy-vline 
WA_/SAPAPO/S_TTSTR_ADM_STR-SCOPEGENBW sy-vline 
WA_/SAPAPO/S_TTSTR_ADM_STR-CALIDGEN sy-vline 
WA_/SAPAPO/S_TTSTR_ADM_STR-FBGEN sy-vline 
WA_/SAPAPO/S_TTSTR_ADM_STR-TBGEN sy-vline 
WA_/SAPAPO/S_TTSTR_ADM_STR-FBDEL sy-vline 
WA_/SAPAPO/S_TTSTR_ADM_STR-RUNTRELEAS sy-vline 
WA_/SAPAPO/S_TTSTR_ADM_STR-FLAGEXTENT sy-vline 
WA_/SAPAPO/S_TTSTR_ADM_STR-CREATED sy-vline 
WA_/SAPAPO/S_TTSTR_ADM_STR-CREATEDBY sy-vline 
WA_/SAPAPO/S_TTSTR_ADM_STR-CHANGED sy-vline 
WA_/SAPAPO/S_TTSTR_ADM_STR-CHANGEDBY sy-vline 
WA_/SAPAPO/S_TTSTR_ADM_STR-GENERATE sy-vline 
WA_/SAPAPO/S_TTSTR_ADM_STR-GENERATEBY sy-vline      INTO ld_text SEPARATED BY SPACE.

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