ABAP Select data from SAP table J_7LPOSDATEMB01 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_7LPOSDATEMB01 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_7LPOSDATEMB01. 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_7LPOSDATEMB01 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_7LPOSDATEMB01 TYPE STANDARD TABLE OF J_7LPOSDATEMB01,
      WA_J_7LPOSDATEMB01 TYPE J_7LPOSDATEMB01,
      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_7LPOSDATEMB01> TYPE J_7LPOSDATEMB01.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_7LPOSDATEMB01.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_7LPOSDATEMB01
  INTO TABLE IT_J_7LPOSDATEMB01.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_7LPOSDATEMB01
*  INTO TABLE @DATA(IT_J_7LPOSDATEMB012).
*--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_7LPOSDATEMB01 INDEX 1 INTO DATA(WA_J_7LPOSDATEMB012).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_7LPOSDATEMB01 ASSIGNING <J_7LPOSDATEMB01>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_7LPOSDATEMB01>-MATNR = 1.
<J_7LPOSDATEMB01>-VRPNR = 1.
<J_7LPOSDATEMB01>-KPEIN = 1.
<J_7LPOSDATEMB01>-FMENG_V = 1.
<J_7LPOSDATEMB01>-MEINS_V = 1.

ENDLOOP.

LOOP AT IT_J_7LPOSDATEMB01 INTO WA_J_7LPOSDATEMB01.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_7LPOSDATEMB01-DIRTY, sy-vline,
  WA_J_7LPOSDATEMB01-VRKME, sy-vline,
  WA_J_7LPOSDATEMB01-POSNR, sy-vline,
  WA_J_7LPOSDATEMB01-MAKTX, sy-vline,
  WA_J_7LPOSDATEMB01-MELDESCHLUESSEL, sy-vline,
  WA_J_7LPOSDATEMB01-FUELLG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_7LPOSDATEMB01 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_7LPOSDATEMB01 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_7LPOSDATEMB01 INTO WA_J_7LPOSDATEMB01.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_J_7LPOSDATEMB01-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LPOSDATEMB01-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field VRPNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_J_7LPOSDATEMB01-VRPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LPOSDATEMB01-VRPNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS_V
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LPOSDATEMB01-MEINS_V
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LPOSDATEMB01-MEINS_V.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VRKME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LPOSDATEMB01-VRKME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LPOSDATEMB01-VRKME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field NTGEWGEWEI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LPOSDATEMB01-NTGEWGEWEI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LPOSDATEMB01-NTGEWGEWEI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field STGEWGEWEI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LPOSDATEMB01-STGEWGEWEI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LPOSDATEMB01-STGEWGEWEI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VOLEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LPOSDATEMB01-VOLEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LPOSDATEMB01-VOLEH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field TOTWEIGHTGEWEI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LPOSDATEMB01-TOTWEIGHTGEWEI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LPOSDATEMB01-TOTWEIGHTGEWEI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LPOSDATEMB01-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LPOSDATEMB01-MEINS.
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_7LPOSDATEMB01_STR, 
MATNR TYPE STRING,
VRPNR TYPE STRING,
KPEIN TYPE STRING,
FMENG_V TYPE STRING,
MEINS_V TYPE STRING,
DIRTY TYPE STRING,
VRKME TYPE STRING,
POSNR TYPE STRING,
MAKTX TYPE STRING,
MELDESCHLUESSEL TYPE STRING,
FUELLG TYPE STRING,
NTGEW TYPE STRING,
NTGEWGEWEI TYPE STRING,
INFOK TYPE STRING,
STOFE TYPE STRING,
VRPKT TYPE STRING,
STGEW TYPE STRING,
STGEWGEWEI TYPE STRING,
VOLUM TYPE STRING,
VOLEH TYPE STRING,
PACKCONT TYPE STRING,
VERBUND TYPE STRING,
FKIMP TYPE STRING,
TOTWEIGHT TYPE STRING,
TOTWEIGHTGEWEI TYPE STRING,
NETWR TYPE STRING,
FKIMP_IMP TYPE STRING,
FKIMP_EXP TYPE STRING,
FMENG TYPE STRING,
MEINS TYPE STRING,
COMPOSITION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_7LPOSDATEMB01_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_7LPOSDATEMB01_STR-MATNR sy-vline 
WA_J_7LPOSDATEMB01_STR-VRPNR sy-vline 
WA_J_7LPOSDATEMB01_STR-KPEIN sy-vline 
WA_J_7LPOSDATEMB01_STR-FMENG_V sy-vline 
WA_J_7LPOSDATEMB01_STR-MEINS_V sy-vline 
WA_J_7LPOSDATEMB01_STR-DIRTY sy-vline 
WA_J_7LPOSDATEMB01_STR-VRKME sy-vline 
WA_J_7LPOSDATEMB01_STR-POSNR sy-vline 
WA_J_7LPOSDATEMB01_STR-MAKTX sy-vline 
WA_J_7LPOSDATEMB01_STR-MELDESCHLUESSEL sy-vline 
WA_J_7LPOSDATEMB01_STR-FUELLG sy-vline 
WA_J_7LPOSDATEMB01_STR-NTGEW sy-vline 
WA_J_7LPOSDATEMB01_STR-NTGEWGEWEI sy-vline 
WA_J_7LPOSDATEMB01_STR-INFOK sy-vline 
WA_J_7LPOSDATEMB01_STR-STOFE sy-vline 
WA_J_7LPOSDATEMB01_STR-VRPKT sy-vline 
WA_J_7LPOSDATEMB01_STR-STGEW sy-vline 
WA_J_7LPOSDATEMB01_STR-STGEWGEWEI sy-vline 
WA_J_7LPOSDATEMB01_STR-VOLUM sy-vline 
WA_J_7LPOSDATEMB01_STR-VOLEH sy-vline 
WA_J_7LPOSDATEMB01_STR-PACKCONT sy-vline 
WA_J_7LPOSDATEMB01_STR-VERBUND sy-vline 
WA_J_7LPOSDATEMB01_STR-FKIMP sy-vline 
WA_J_7LPOSDATEMB01_STR-TOTWEIGHT sy-vline 
WA_J_7LPOSDATEMB01_STR-TOTWEIGHTGEWEI sy-vline 
WA_J_7LPOSDATEMB01_STR-NETWR sy-vline 
WA_J_7LPOSDATEMB01_STR-FKIMP_IMP sy-vline 
WA_J_7LPOSDATEMB01_STR-FKIMP_EXP sy-vline 
WA_J_7LPOSDATEMB01_STR-FMENG sy-vline 
WA_J_7LPOSDATEMB01_STR-MEINS sy-vline 
WA_J_7LPOSDATEMB01_STR-COMPOSITION sy-vline      INTO ld_text SEPARATED BY SPACE.

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