ABAP Select data from SAP table J_7LASRF into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_7LASRF 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_7LASRF. 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_7LASRF 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_7LASRF TYPE STANDARD TABLE OF J_7LASRF,
      WA_J_7LASRF TYPE J_7LASRF,
      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_7LASRF> TYPE J_7LASRF.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_7LASRF.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_7LASRF
  INTO TABLE IT_J_7LASRF.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_7LASRF
*  INTO TABLE @DATA(IT_J_7LASRF2).
*--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_7LASRF INDEX 1 INTO DATA(WA_J_7LASRF2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_7LASRF ASSIGNING <J_7LASRF>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_7LASRF>-MANDT = 1.
<J_7LASRF>-STOFI = 1.
<J_7LASRF>-STOKTXF = 1.
<J_7LASRF>-STOKTXFG = 1.
<J_7LASRF>-MATNR = 1.

ENDLOOP.

LOOP AT IT_J_7LASRF INTO WA_J_7LASRF.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_7LASRF-STOKLF, sy-vline,
  WA_J_7LASRF-GSTFNF, sy-vline,
  WA_J_7LASRF-GEWEIF, sy-vline,
  WA_J_7LASRF-ENTNA, sy-vline,
  WA_J_7LASRF-ENTNR, sy-vline,
  WA_J_7LASRF-STOFE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_7LASRF 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_7LASRF 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_7LASRF INTO WA_J_7LASRF.


*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_7LASRF-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LASRF-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN3, internal->external for field GSTFNF
CALL FUNCTION 'CONVERSION_EXIT_MATN3_OUTPUT'
  EXPORTING
    input =                      WA_J_7LASRF-GSTFNF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LASRF-GSTFNF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field GEWEIF
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LASRF-GEWEIF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LASRF-GEWEIF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ENTNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_7LASRF-ENTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LASRF-ENTNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN3, internal->external for field GSTFNP
CALL FUNCTION 'CONVERSION_EXIT_MATN3_OUTPUT'
  EXPORTING
    input =                      WA_J_7LASRF-GSTFNP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LASRF-GSTFNP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field GEWEIP
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LASRF-GEWEIP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LASRF-GEWEIP.
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_7LASRF_STR, 
MANDT TYPE STRING,
STOFI TYPE STRING,
STOKTXF TYPE STRING,
STOKTXFG TYPE STRING,
MATNR TYPE STRING,
STOKLF TYPE STRING,
GSTFNF TYPE STRING,
GEWEIF TYPE STRING,
ENTNA TYPE STRING,
ENTNR TYPE STRING,
STOFE TYPE STRING,
STOKTXP TYPE STRING,
STOKTXPG TYPE STRING,
STOKLP TYPE STRING,
GSTFNP TYPE STRING,
LAND1 TYPE STRING,
GEWEIP TYPE STRING,
NO_STOFE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_7LASRF_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_7LASRF_STR-MANDT sy-vline 
WA_J_7LASRF_STR-STOFI sy-vline 
WA_J_7LASRF_STR-STOKTXF sy-vline 
WA_J_7LASRF_STR-STOKTXFG sy-vline 
WA_J_7LASRF_STR-MATNR sy-vline 
WA_J_7LASRF_STR-STOKLF sy-vline 
WA_J_7LASRF_STR-GSTFNF sy-vline 
WA_J_7LASRF_STR-GEWEIF sy-vline 
WA_J_7LASRF_STR-ENTNA sy-vline 
WA_J_7LASRF_STR-ENTNR sy-vline 
WA_J_7LASRF_STR-STOFE sy-vline 
WA_J_7LASRF_STR-STOKTXP sy-vline 
WA_J_7LASRF_STR-STOKTXPG sy-vline 
WA_J_7LASRF_STR-STOKLP sy-vline 
WA_J_7LASRF_STR-GSTFNP sy-vline 
WA_J_7LASRF_STR-LAND1 sy-vline 
WA_J_7LASRF_STR-GEWEIP sy-vline 
WA_J_7LASRF_STR-NO_STOFE sy-vline      INTO ld_text SEPARATED BY SPACE.

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