ABAP Select data from SAP table T5A77 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP T5A77 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 T5A77. 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 T5A77 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_T5A77 TYPE STANDARD TABLE OF T5A77,
      WA_T5A77 TYPE T5A77,
      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: <T5A77> TYPE T5A77.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T5A77.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T5A77
  INTO TABLE IT_T5A77.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T5A77
*  INTO TABLE @DATA(IT_T5A772).
*--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_T5A77 INDEX 1 INTO DATA(WA_T5A772).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T5A77 ASSIGNING <T5A77>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T5A77>-MANDT = 1.
<T5A77>-PERNR = 1.
<T5A77>-REVTY = 1.
<T5A77>-BEGDA = 1.
<T5A77>-ENDDA = 1.

ENDLOOP.

LOOP AT IT_T5A77 INTO WA_T5A77.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T5A77-SEQNR, sy-vline,
  WA_T5A77-SETYP, sy-vline,
  WA_T5A77-READY, sy-vline,
  WA_T5A77-SRTZA, sy-vline,
  WA_T5A77-EMETH, sy-vline,
  WA_T5A77-LZTYP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_T5A77 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_T5A77 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_T5A77 INTO WA_T5A77.


*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_T5A77_STR, 
MANDT TYPE STRING,
PERNR TYPE STRING,
REVTY TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
SEQNR TYPE STRING,
SETYP TYPE STRING,
READY TYPE STRING,
SRTZA TYPE STRING,
EMETH TYPE STRING,
LZTYP TYPE STRING,
UNAME TYPE STRING,
DATUM TYPE STRING,
UZEIT TYPE STRING,
PGMID TYPE STRING,
EPRO2 TYPE STRING,
ESVGR TYPE STRING,
EUSVA TYPE STRING,
WOBD0 TYPE STRING,
ZOBD0 TYPE STRING,
EDTNR TYPE STRING,
ESANR TYPE STRING,
ASVTR TYPE STRING,
ASVAN TYPE STRING,
DGSV1 TYPE STRING,
AUSVL TYPE STRING,
AUSVG TYPE STRING,
DNNNA TYPE STRING,
DNVNA TYPE STRING,
LOHNB TYPE STRING,
DGFZA TYPE STRING,
DGNUM TYPE STRING,
ANKEY TYPE STRING,
ASTR0 TYPE STRING,
ANRV0 TYPE STRING,
ANRB0 TYPE STRING,
ASTG0 TYPE STRING,
ATOP0 TYPE STRING,
APLZ0 TYPE STRING,
AORT0 TYPE STRING,
AGKZ0 TYPE STRING,
APOL0 TYPE STRING,
ADAT0 TYPE STRING,
REFN0 TYPE STRING,
LAND1 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T5A77_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_T5A77_STR-MANDT sy-vline 
WA_T5A77_STR-PERNR sy-vline 
WA_T5A77_STR-REVTY sy-vline 
WA_T5A77_STR-BEGDA sy-vline 
WA_T5A77_STR-ENDDA sy-vline 
WA_T5A77_STR-SEQNR sy-vline 
WA_T5A77_STR-SETYP sy-vline 
WA_T5A77_STR-READY sy-vline 
WA_T5A77_STR-SRTZA sy-vline 
WA_T5A77_STR-EMETH sy-vline 
WA_T5A77_STR-LZTYP sy-vline 
WA_T5A77_STR-UNAME sy-vline 
WA_T5A77_STR-DATUM sy-vline 
WA_T5A77_STR-UZEIT sy-vline 
WA_T5A77_STR-PGMID sy-vline 
WA_T5A77_STR-EPRO2 sy-vline 
WA_T5A77_STR-ESVGR sy-vline 
WA_T5A77_STR-EUSVA sy-vline 
WA_T5A77_STR-WOBD0 sy-vline 
WA_T5A77_STR-ZOBD0 sy-vline 
WA_T5A77_STR-EDTNR sy-vline 
WA_T5A77_STR-ESANR sy-vline 
WA_T5A77_STR-ASVTR sy-vline 
WA_T5A77_STR-ASVAN sy-vline 
WA_T5A77_STR-DGSV1 sy-vline 
WA_T5A77_STR-AUSVL sy-vline 
WA_T5A77_STR-AUSVG sy-vline 
WA_T5A77_STR-DNNNA sy-vline 
WA_T5A77_STR-DNVNA sy-vline 
WA_T5A77_STR-LOHNB sy-vline 
WA_T5A77_STR-DGFZA sy-vline 
WA_T5A77_STR-DGNUM sy-vline 
WA_T5A77_STR-ANKEY sy-vline 
WA_T5A77_STR-ASTR0 sy-vline 
WA_T5A77_STR-ANRV0 sy-vline 
WA_T5A77_STR-ANRB0 sy-vline 
WA_T5A77_STR-ASTG0 sy-vline 
WA_T5A77_STR-ATOP0 sy-vline 
WA_T5A77_STR-APLZ0 sy-vline 
WA_T5A77_STR-AORT0 sy-vline 
WA_T5A77_STR-AGKZ0 sy-vline 
WA_T5A77_STR-APOL0 sy-vline 
WA_T5A77_STR-ADAT0 sy-vline 
WA_T5A77_STR-REFN0 sy-vline 
WA_T5A77_STR-LAND1 sy-vline      INTO ld_text SEPARATED BY SPACE.

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