ABAP Select data from SAP table TJ180 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TJ180 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 TJ180. 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 TJ180 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_TJ180 TYPE STANDARD TABLE OF TJ180,
      WA_TJ180 TYPE TJ180,
      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: <TJ180> TYPE TJ180.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_TJ180.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM TJ180
  INTO TABLE IT_TJ180.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TJ180
*  INTO TABLE @DATA(IT_TJ1802).
*--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_TJ180 INDEX 1 INTO DATA(WA_TJ1802).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_TJ180 ASSIGNING <TJ180>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TJ180>-TCODE = 1.
<TJ180>-AGIDV = 1.
<TJ180>-TRTYP = 1.
<TJ180>-AKTYP = 1.
<TJ180>-BLDGR = 1.

ENDLOOP.

LOOP AT IT_TJ180 INTO WA_TJ180.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TJ180-PANEL, sy-vline,
  WA_TJ180-TRVOG, sy-vline,
  WA_TJ180-AUART, sy-vline,
  WA_TJ180-KVEWE, sy-vline,
  WA_TJ180-KAPPL, sy-vline,
  WA_TJ180-JPARVW, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TJ180 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_TJ180 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_TJ180 INTO WA_TJ180.


*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.

*Conversion exit PARVW, internal->external for field JPARVW
CALL FUNCTION 'CONVERSION_EXIT_PARVW_OUTPUT'
  EXPORTING
    input =                      WA_TJ180-JPARVW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TJ180-JPARVW.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_TJ180_STR, 
TCODE TYPE STRING,
AGIDV TYPE STRING,
TRTYP TYPE STRING,
AKTYP TYPE STRING,
BLDGR TYPE STRING,
PANEL TYPE STRING,
TRVOG TYPE STRING,
AUART TYPE STRING,
KVEWE TYPE STRING,
KAPPL TYPE STRING,
JPARVW TYPE STRING,
XZENTRAL TYPE STRING,
KOPGR TYPE STRING,
POSGR TYPE STRING,
FCODE_INIT TYPE STRING,
XDPOPUPANF TYPE STRING,
XISPSD TYPE STRING,
XISPAM TYPE STRING,
AVMUPD_CAL TYPE STRING,
AVMUPD_EVN TYPE STRING,
BU_TCODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TJ180_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_TJ180_STR-TCODE sy-vline 
WA_TJ180_STR-AGIDV sy-vline 
WA_TJ180_STR-TRTYP sy-vline 
WA_TJ180_STR-AKTYP sy-vline 
WA_TJ180_STR-BLDGR sy-vline 
WA_TJ180_STR-PANEL sy-vline 
WA_TJ180_STR-TRVOG sy-vline 
WA_TJ180_STR-AUART sy-vline 
WA_TJ180_STR-KVEWE sy-vline 
WA_TJ180_STR-KAPPL sy-vline 
WA_TJ180_STR-JPARVW sy-vline 
WA_TJ180_STR-XZENTRAL sy-vline 
WA_TJ180_STR-KOPGR sy-vline 
WA_TJ180_STR-POSGR sy-vline 
WA_TJ180_STR-FCODE_INIT sy-vline 
WA_TJ180_STR-XDPOPUPANF sy-vline 
WA_TJ180_STR-XISPSD sy-vline 
WA_TJ180_STR-XISPAM sy-vline 
WA_TJ180_STR-AVMUPD_CAL sy-vline 
WA_TJ180_STR-AVMUPD_EVN sy-vline 
WA_TJ180_STR-BU_TCODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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