ABAP Select data from SAP table J_7LMSHDLST into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_7LMSHDLST 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_7LMSHDLST. 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_7LMSHDLST 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_7LMSHDLST TYPE STANDARD TABLE OF J_7LMSHDLST,
      WA_J_7LMSHDLST TYPE J_7LMSHDLST,
      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_7LMSHDLST> TYPE J_7LMSHDLST.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_7LMSHDLST.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_7LMSHDLST
  INTO TABLE IT_J_7LMSHDLST.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_7LMSHDLST
*  INTO TABLE @DATA(IT_J_7LMSHDLST2).
*--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_7LMSHDLST INDEX 1 INTO DATA(WA_J_7LMSHDLST2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_7LMSHDLST ASSIGNING <J_7LMSHDLST>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_7LMSHDLST>-SOKOA = 1.
<J_7LMSHDLST>-PLTYP = 1.
<J_7LMSHDLST>-STOFE = 1.
<J_7LMSHDLST>-VFLKL = 1.
<J_7LMSHDLST>-HDLST = 1.

ENDLOOP.

LOOP AT IT_J_7LMSHDLST INTO WA_J_7LMSHDLST.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_7LMSHDLST-STGEW, sy-vline,
  WA_J_7LMSHDLST-GEWEI, sy-vline,
  WA_J_7LMSHDLST-VFLST, sy-vline,
  WA_J_7LMSHDLST-KMEIN, sy-vline,
  WA_J_7LMSHDLST-KPEIN, sy-vline,
  WA_J_7LMSHDLST-KMEIN2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_7LMSHDLST 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_7LMSHDLST 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_7LMSHDLST INTO WA_J_7LMSHDLST.


*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_7LMSHDLST-GEWEI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LMSHDLST-GEWEI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field KMEIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LMSHDLST-KMEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LMSHDLST-KMEIN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field KMEIN2
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LMSHDLST-KMEIN2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LMSHDLST-KMEIN2.
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_7LMSHDLST_STR, 
SOKOA TYPE STRING,
PLTYP TYPE STRING,
STOFE TYPE STRING,
VFLKL TYPE STRING,
HDLST TYPE STRING,
STGEW TYPE STRING,
GEWEI TYPE STRING,
VFLST TYPE STRING,
KMEIN TYPE STRING,
KPEIN TYPE STRING,
KMEIN2 TYPE STRING,
PREIS1 TYPE STRING,
PREIS1_4 TYPE STRING,
KPROZ1 TYPE STRING,
STGEW2 TYPE STRING,
VFLST2 TYPE STRING,
PREIS2 TYPE STRING,
KPROZ2 TYPE STRING,
GSBET2 TYPE STRING,
STOKTX TYPE STRING,
HDLSTX TYPE STRING,
IND TYPE STRING,
WAERK TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_7LMSHDLST_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_7LMSHDLST_STR-SOKOA sy-vline 
WA_J_7LMSHDLST_STR-PLTYP sy-vline 
WA_J_7LMSHDLST_STR-STOFE sy-vline 
WA_J_7LMSHDLST_STR-VFLKL sy-vline 
WA_J_7LMSHDLST_STR-HDLST sy-vline 
WA_J_7LMSHDLST_STR-STGEW sy-vline 
WA_J_7LMSHDLST_STR-GEWEI sy-vline 
WA_J_7LMSHDLST_STR-VFLST sy-vline 
WA_J_7LMSHDLST_STR-KMEIN sy-vline 
WA_J_7LMSHDLST_STR-KPEIN sy-vline 
WA_J_7LMSHDLST_STR-KMEIN2 sy-vline 
WA_J_7LMSHDLST_STR-PREIS1 sy-vline 
WA_J_7LMSHDLST_STR-PREIS1_4 sy-vline 
WA_J_7LMSHDLST_STR-KPROZ1 sy-vline 
WA_J_7LMSHDLST_STR-STGEW2 sy-vline 
WA_J_7LMSHDLST_STR-VFLST2 sy-vline 
WA_J_7LMSHDLST_STR-PREIS2 sy-vline 
WA_J_7LMSHDLST_STR-KPROZ2 sy-vline 
WA_J_7LMSHDLST_STR-GSBET2 sy-vline 
WA_J_7LMSHDLST_STR-STOKTX sy-vline 
WA_J_7LMSHDLST_STR-HDLSTX sy-vline 
WA_J_7LMSHDLST_STR-IND sy-vline 
WA_J_7LMSHDLST_STR-WAERK sy-vline      INTO ld_text SEPARATED BY SPACE.

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