ABAP Select data from SAP table J_7LPOSDATCONAI into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_7LPOSDATCONAI 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 J_7LPOSDATCONAI. 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 J_7LPOSDATCONAI 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_J_7LPOSDATCONAI TYPE STANDARD TABLE OF J_7LPOSDATCONAI,
      WA_J_7LPOSDATCONAI TYPE J_7LPOSDATCONAI,
      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: <J_7LPOSDATCONAI> TYPE J_7LPOSDATCONAI.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_7LPOSDATCONAI.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_7LPOSDATCONAI
  INTO TABLE IT_J_7LPOSDATCONAI.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_7LPOSDATCONAI
*  INTO TABLE @DATA(IT_J_7LPOSDATCONAI2).
*--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_J_7LPOSDATCONAI INDEX 1 INTO DATA(WA_J_7LPOSDATCONAI2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_7LPOSDATCONAI ASSIGNING <J_7LPOSDATCONAI>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_7LPOSDATCONAI>-STOFINDEX = 1.
<J_7LPOSDATCONAI>-STOFE = 1.
<J_7LPOSDATCONAI>-STOKTX = 1.
<J_7LPOSDATCONAI>-STOKTX2 = 1.
<J_7LPOSDATCONAI>-GEBUEFREIGEW = 1.

ENDLOOP.

LOOP AT IT_J_7LPOSDATCONAI INTO WA_J_7LPOSDATCONAI.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_7LPOSDATCONAI-GEBUEGEW, sy-vline,
  WA_J_7LPOSDATCONAI-PREISE, sy-vline,
  WA_J_7LPOSDATCONAI-PREISB, sy-vline,
  WA_J_7LPOSDATCONAI-PRIMGEW, sy-vline,
  WA_J_7LPOSDATCONAI-SEKUNDGEW, sy-vline,
  WA_J_7LPOSDATCONAI-VORPERIOGEW, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_7LPOSDATCONAI 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_J_7LPOSDATCONAI 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_J_7LPOSDATCONAI INTO WA_J_7LPOSDATCONAI.


*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 CUNIT, internal->external for field GEWEI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LPOSDATCONAI-GEWEI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LPOSDATCONAI-GEWEI.
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_J_7LPOSDATCONAI_STR, 
STOFINDEX TYPE STRING,
STOFE TYPE STRING,
STOKTX TYPE STRING,
STOKTX2 TYPE STRING,
GEBUEFREIGEW TYPE STRING,
GEBUEGEW TYPE STRING,
PREISE TYPE STRING,
PREISB TYPE STRING,
PRIMGEW TYPE STRING,
SEKUNDGEW TYPE STRING,
VORPERIOGEW TYPE STRING,
SALDO TYPE STRING,
GEWEI TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_7LPOSDATCONAI_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_J_7LPOSDATCONAI_STR-STOFINDEX sy-vline 
WA_J_7LPOSDATCONAI_STR-STOFE sy-vline 
WA_J_7LPOSDATCONAI_STR-STOKTX sy-vline 
WA_J_7LPOSDATCONAI_STR-STOKTX2 sy-vline 
WA_J_7LPOSDATCONAI_STR-GEBUEFREIGEW sy-vline 
WA_J_7LPOSDATCONAI_STR-GEBUEGEW sy-vline 
WA_J_7LPOSDATCONAI_STR-PREISE sy-vline 
WA_J_7LPOSDATCONAI_STR-PREISB sy-vline 
WA_J_7LPOSDATCONAI_STR-PRIMGEW sy-vline 
WA_J_7LPOSDATCONAI_STR-SEKUNDGEW sy-vline 
WA_J_7LPOSDATCONAI_STR-VORPERIOGEW sy-vline 
WA_J_7LPOSDATCONAI_STR-SALDO sy-vline 
WA_J_7LPOSDATCONAI_STR-GEWEI sy-vline      INTO ld_text SEPARATED BY SPACE.

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