ABAP Select data from SAP table J_7LASA1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_7LASA1 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_7LASA1. 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_7LASA1 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_7LASA1 TYPE STANDARD TABLE OF J_7LASA1,
      WA_J_7LASA1 TYPE J_7LASA1,
      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_7LASA1> TYPE J_7LASA1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_7LASA1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_7LASA1
  INTO TABLE IT_J_7LASA1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_7LASA1
*  INTO TABLE @DATA(IT_J_7LASA12).
*--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_7LASA1 INDEX 1 INTO DATA(WA_J_7LASA12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_7LASA1 ASSIGNING <J_7LASA1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_7LASA1>-MANDT = 1.
<J_7LASA1>-MATNR = 1.
<J_7LASA1>-VARIANTE = 1.
<J_7LASA1>-BUKRS = 1.
<J_7LASA1>-LAND1 = 1.

ENDLOOP.

LOOP AT IT_J_7LASA1 INTO WA_J_7LASA1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_7LASA1-VRKME, sy-vline,
  WA_J_7LASA1-MTYP, sy-vline,
  WA_J_7LASA1-MEREL, sy-vline,
  WA_J_7LASA1-GMENG, sy-vline,
  WA_J_7LASA1-MEINS, sy-vline,
  WA_J_7LASA1-MAKTX, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_7LASA1 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_7LASA1 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_7LASA1 INTO WA_J_7LASA1.


*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_7LASA1-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LASA1-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VRKME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LASA1-VRKME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LASA1-VRKME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LASA1-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LASA1-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field RMATN
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_J_7LASA1-RMATN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LASA1-RMATN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field REA_GEWEI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LASA1-REA_GEWEI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LASA1-REA_GEWEI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field REA_VOLEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LASA1-REA_VOLEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LASA1-REA_VOLEH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MM_GEWEI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LASA1-MM_GEWEI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LASA1-MM_GEWEI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MM_VOLEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LASA1-MM_VOLEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LASA1-MM_VOLEH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EAN11, internal->external for field EAN11
CALL FUNCTION 'CONVERSION_EXIT_EAN11_OUTPUT'
  EXPORTING
    input =                      WA_J_7LASA1-EAN11
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LASA1-EAN11.
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_7LASA1_STR, 
MANDT TYPE STRING,
MATNR TYPE STRING,
VARIANTE TYPE STRING,
BUKRS TYPE STRING,
LAND1 TYPE STRING,
VRKME TYPE STRING,
MTYP TYPE STRING,
MEREL TYPE STRING,
GMENG TYPE STRING,
MEINS TYPE STRING,
MAKTX TYPE STRING,
MAKTG TYPE STRING,
RMATN TYPE STRING,
AVARIANTE TYPE STRING,
REFTYP TYPE STRING,
MAKTIVKZ TYPE STRING,
REA_NTGEW TYPE STRING,
REA_BRGEW TYPE STRING,
REA_GEWEI TYPE STRING,
REA_VOLUM TYPE STRING,
REA_VOLEH TYPE STRING,
MM_NTGEW TYPE STRING,
MM_BRGEW TYPE STRING,
MM_GEWEI TYPE STRING,
MM_VOLUM TYPE STRING,
MM_VOLEH TYPE STRING,
EAN11 TYPE STRING,
DATABADM TYPE STRING,
DATBIADM TYPE STRING,
ERSDAADM TYPE STRING,
ERZETADM TYPE STRING,
ERNAMADM TYPE STRING,
LAEDAADM TYPE STRING,
AEZETADM TYPE STRING,
AENAMADM TYPE STRING,
LVORMADM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_7LASA1_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_7LASA1_STR-MANDT sy-vline 
WA_J_7LASA1_STR-MATNR sy-vline 
WA_J_7LASA1_STR-VARIANTE sy-vline 
WA_J_7LASA1_STR-BUKRS sy-vline 
WA_J_7LASA1_STR-LAND1 sy-vline 
WA_J_7LASA1_STR-VRKME sy-vline 
WA_J_7LASA1_STR-MTYP sy-vline 
WA_J_7LASA1_STR-MEREL sy-vline 
WA_J_7LASA1_STR-GMENG sy-vline 
WA_J_7LASA1_STR-MEINS sy-vline 
WA_J_7LASA1_STR-MAKTX sy-vline 
WA_J_7LASA1_STR-MAKTG sy-vline 
WA_J_7LASA1_STR-RMATN sy-vline 
WA_J_7LASA1_STR-AVARIANTE sy-vline 
WA_J_7LASA1_STR-REFTYP sy-vline 
WA_J_7LASA1_STR-MAKTIVKZ sy-vline 
WA_J_7LASA1_STR-REA_NTGEW sy-vline 
WA_J_7LASA1_STR-REA_BRGEW sy-vline 
WA_J_7LASA1_STR-REA_GEWEI sy-vline 
WA_J_7LASA1_STR-REA_VOLUM sy-vline 
WA_J_7LASA1_STR-REA_VOLEH sy-vline 
WA_J_7LASA1_STR-MM_NTGEW sy-vline 
WA_J_7LASA1_STR-MM_BRGEW sy-vline 
WA_J_7LASA1_STR-MM_GEWEI sy-vline 
WA_J_7LASA1_STR-MM_VOLUM sy-vline 
WA_J_7LASA1_STR-MM_VOLEH sy-vline 
WA_J_7LASA1_STR-EAN11 sy-vline 
WA_J_7LASA1_STR-DATABADM sy-vline 
WA_J_7LASA1_STR-DATBIADM sy-vline 
WA_J_7LASA1_STR-ERSDAADM sy-vline 
WA_J_7LASA1_STR-ERZETADM sy-vline 
WA_J_7LASA1_STR-ERNAMADM sy-vline 
WA_J_7LASA1_STR-LAEDAADM sy-vline 
WA_J_7LASA1_STR-AEZETADM sy-vline 
WA_J_7LASA1_STR-AENAMADM sy-vline 
WA_J_7LASA1_STR-LVORMADM sy-vline      INTO ld_text SEPARATED BY SPACE.

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