ABAP Select data from SAP table TBIER_S into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TBIER_S
*  INTO TABLE @DATA(IT_TBIER_S2).
*--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_TBIER_S INDEX 1 INTO DATA(WA_TBIER_S2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TBIER_S>-JOBTEXT = 1.
<TBIER_S>-JOBCOUNT = 1.
<TBIER_S>-JOBID = 1.
<TBIER_S>-BTCJOB = 1.
<TBIER_S>-REPNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TBIER_S-VARIANT, sy-vline,
  WA_TBIER_S-EXECSERVER, sy-vline,
  WA_TBIER_S-NOSTARTING, sy-vline,
  WA_TBIER_S-AKTNUM, sy-vline,
  WA_TBIER_S-AKTSTAT, sy-vline,
  WA_TBIER_S-DATUM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TBIER_S 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_TBIER_S 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_TBIER_S INTO WA_TBIER_S.


*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_TBIER_S_STR, 
JOBTEXT TYPE STRING,
JOBCOUNT TYPE STRING,
JOBID TYPE STRING,
BTCJOB TYPE STRING,
REPNAME TYPE STRING,
VARIANT TYPE STRING,
EXECSERVER TYPE STRING,
NOSTARTING TYPE STRING,
AKTNUM TYPE STRING,
AKTSTAT TYPE STRING,
DATUM TYPE STRING,
UHRZEIT TYPE STRING,
VERSUCHNR TYPE STRING,
LASTNUM TYPE STRING,
NUMERROR TYPE STRING,
EXTNUM TYPE STRING,
UNAME TYPE STRING,
AKTUELL TYPE STRING,
STATUSTEXT TYPE STRING,
REPTEXT TYPE STRING,
VARTEXT TYPE STRING,
RUNSERVER TYPE STRING,
JOBCLASS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TBIER_S_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_TBIER_S_STR-JOBTEXT sy-vline 
WA_TBIER_S_STR-JOBCOUNT sy-vline 
WA_TBIER_S_STR-JOBID sy-vline 
WA_TBIER_S_STR-BTCJOB sy-vline 
WA_TBIER_S_STR-REPNAME sy-vline 
WA_TBIER_S_STR-VARIANT sy-vline 
WA_TBIER_S_STR-EXECSERVER sy-vline 
WA_TBIER_S_STR-NOSTARTING sy-vline 
WA_TBIER_S_STR-AKTNUM sy-vline 
WA_TBIER_S_STR-AKTSTAT sy-vline 
WA_TBIER_S_STR-DATUM sy-vline 
WA_TBIER_S_STR-UHRZEIT sy-vline 
WA_TBIER_S_STR-VERSUCHNR sy-vline 
WA_TBIER_S_STR-LASTNUM sy-vline 
WA_TBIER_S_STR-NUMERROR sy-vline 
WA_TBIER_S_STR-EXTNUM sy-vline 
WA_TBIER_S_STR-UNAME sy-vline 
WA_TBIER_S_STR-AKTUELL sy-vline 
WA_TBIER_S_STR-STATUSTEXT sy-vline 
WA_TBIER_S_STR-REPTEXT sy-vline 
WA_TBIER_S_STR-VARTEXT sy-vline 
WA_TBIER_S_STR-RUNSERVER sy-vline 
WA_TBIER_S_STR-JOBCLASS sy-vline      INTO ld_text SEPARATED BY SPACE.

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