ABAP Select data from SAP table T5AB0 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP T5AB0 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 T5AB0. 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 T5AB0 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_T5AB0 TYPE STANDARD TABLE OF T5AB0,
      WA_T5AB0 TYPE T5AB0,
      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: <T5AB0> TYPE T5AB0.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T5AB0.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T5AB0
  INTO TABLE IT_T5AB0.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T5AB0
*  INTO TABLE @DATA(IT_T5AB02).
*--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_T5AB0 INDEX 1 INTO DATA(WA_T5AB02).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T5AB0 ASSIGNING <T5AB0>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T5AB0>-MANDT = 1.
<T5AB0>-TEMSE_NAME = 1.
<T5AB0>-ELDA_FILENAME = 1.
<T5AB0>-RUNDT = 1.
<T5AB0>-RUNTM = 1.

ENDLOOP.

LOOP AT IT_T5AB0 INTO WA_T5AB0.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T5AB0-PROJ, sy-vline,
  WA_T5AB0-BEST, sy-vline,
  WA_T5AB0-DTNR, sy-vline,
  WA_T5AB0-EDAT, sy-vline,
  WA_T5AB0-EZEI, sy-vline,
  WA_T5AB0-HRST, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_T5AB0 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_T5AB0 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_T5AB0 INTO WA_T5AB0.


*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_T5AB0_STR, 
MANDT TYPE STRING,
TEMSE_NAME TYPE STRING,
ELDA_FILENAME TYPE STRING,
RUNDT TYPE STRING,
RUNTM TYPE STRING,
PROJ TYPE STRING,
BEST TYPE STRING,
DTNR TYPE STRING,
EDAT TYPE STRING,
EZEI TYPE STRING,
HRST TYPE STRING,
HKFZ TYPE STRING,
HPLZ TYPE STRING,
HORT TYPE STRING,
HSTR TYPE STRING,
VERS TYPE STRING,
HTEL TYPE STRING,
SOID TYPE STRING,
SANZ TYPE STRING,
ELNR TYPE STRING,
HEMA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T5AB0_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_T5AB0_STR-MANDT sy-vline 
WA_T5AB0_STR-TEMSE_NAME sy-vline 
WA_T5AB0_STR-ELDA_FILENAME sy-vline 
WA_T5AB0_STR-RUNDT sy-vline 
WA_T5AB0_STR-RUNTM sy-vline 
WA_T5AB0_STR-PROJ sy-vline 
WA_T5AB0_STR-BEST sy-vline 
WA_T5AB0_STR-DTNR sy-vline 
WA_T5AB0_STR-EDAT sy-vline 
WA_T5AB0_STR-EZEI sy-vline 
WA_T5AB0_STR-HRST sy-vline 
WA_T5AB0_STR-HKFZ sy-vline 
WA_T5AB0_STR-HPLZ sy-vline 
WA_T5AB0_STR-HORT sy-vline 
WA_T5AB0_STR-HSTR sy-vline 
WA_T5AB0_STR-VERS sy-vline 
WA_T5AB0_STR-HTEL sy-vline 
WA_T5AB0_STR-SOID sy-vline 
WA_T5AB0_STR-SANZ sy-vline 
WA_T5AB0_STR-ELNR sy-vline 
WA_T5AB0_STR-HEMA sy-vline      INTO ld_text SEPARATED BY SPACE.

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