ABAP Select data from SAP table T180Z into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP T180Z 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 T180Z. 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 T180Z 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_T180Z TYPE STANDARD TABLE OF T180Z,
      WA_T180Z TYPE T180Z,
      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: <T180Z> TYPE T180Z.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T180Z.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T180Z
  INTO TABLE IT_T180Z.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T180Z
*  INTO TABLE @DATA(IT_T180Z2).
*--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_T180Z INDEX 1 INTO DATA(WA_T180Z2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T180Z ASSIGNING <T180Z>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T180Z>-MANDT = 1.
<T180Z>-RNAME = 1.
<T180Z>-TRVOG = 1.
<T180Z>-ANZGR = 1.
<T180Z>-VARNR = 1.

ENDLOOP.

LOOP AT IT_T180Z INTO WA_T180Z.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T180Z-ZUART, sy-vline,
  WA_T180Z-NAME_DAZU, sy-vline,
  WA_T180Z-MAT_DAZU, sy-vline,
  WA_T180Z-LIEF_DAZU, sy-vline,
  WA_T180Z-STAT_DAZU, sy-vline,
  WA_T180Z-XDEBI, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_T180Z 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_T180Z 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_T180Z INTO WA_T180Z.


*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_T180Z_STR, 
MANDT TYPE STRING,
RNAME TYPE STRING,
TRVOG TYPE STRING,
ANZGR TYPE STRING,
VARNR TYPE STRING,
ZUART TYPE STRING,
NAME_DAZU TYPE STRING,
MAT_DAZU TYPE STRING,
LIEF_DAZU TYPE STRING,
STAT_DAZU TYPE STRING,
XDEBI TYPE STRING,
XKRED TYPE STRING,
XSACH TYPE STRING,
XBKPF TYPE STRING,
XBSEG TYPE STRING,
XBSED TYPE STRING,
XBSEC TYPE STRING,
INAKTIV TYPE STRING,
GMANDT TYPE STRING,
GSYSTEM TYPE STRING,
SAPSY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T180Z_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_T180Z_STR-MANDT sy-vline 
WA_T180Z_STR-RNAME sy-vline 
WA_T180Z_STR-TRVOG sy-vline 
WA_T180Z_STR-ANZGR sy-vline 
WA_T180Z_STR-VARNR sy-vline 
WA_T180Z_STR-ZUART sy-vline 
WA_T180Z_STR-NAME_DAZU sy-vline 
WA_T180Z_STR-MAT_DAZU sy-vline 
WA_T180Z_STR-LIEF_DAZU sy-vline 
WA_T180Z_STR-STAT_DAZU sy-vline 
WA_T180Z_STR-XDEBI sy-vline 
WA_T180Z_STR-XKRED sy-vline 
WA_T180Z_STR-XSACH sy-vline 
WA_T180Z_STR-XBKPF sy-vline 
WA_T180Z_STR-XBSEG sy-vline 
WA_T180Z_STR-XBSED sy-vline 
WA_T180Z_STR-XBSEC sy-vline 
WA_T180Z_STR-INAKTIV sy-vline 
WA_T180Z_STR-GMANDT sy-vline 
WA_T180Z_STR-GSYSTEM sy-vline 
WA_T180Z_STR-SAPSY sy-vline      INTO ld_text SEPARATED BY SPACE.

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