ABAP Select data from SAP table J_3R_OS1_S2T into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_3R_OS1_S2T 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_3R_OS1_S2T. 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_3R_OS1_S2T 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_3R_OS1_S2T TYPE STANDARD TABLE OF J_3R_OS1_S2T,
      WA_J_3R_OS1_S2T TYPE J_3R_OS1_S2T,
      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_3R_OS1_S2T> TYPE J_3R_OS1_S2T.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_3R_OS1_S2T.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_3R_OS1_S2T
  INTO TABLE IT_J_3R_OS1_S2T.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_3R_OS1_S2T
*  INTO TABLE @DATA(IT_J_3R_OS1_S2T2).
*--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_3R_OS1_S2T INDEX 1 INTO DATA(WA_J_3R_OS1_S2T2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_3R_OS1_S2T ASSIGNING <J_3R_OS1_S2T>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_3R_OS1_S2T>-BUKRS = 1.
<J_3R_OS1_S2T>-ANLN1 = 1.
<J_3R_OS1_S2T>-ANLN2 = 1.
<J_3R_OS1_S2T>-N62_COL1_OBJ_NAME = 1.
<J_3R_OS1_S2T>-N62_COL2_OBJ_QNTY = 1.

ENDLOOP.

LOOP AT IT_J_3R_OS1_S2T INTO WA_J_3R_OS1_S2T.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_3R_OS1_S2T-N62_COL3_PR_MAT_NAME, sy-vline,
  WA_J_3R_OS1_S2T-N62_COL4_PR_MAT_NOM_NR, sy-vline,
  WA_J_3R_OS1_S2T-N62_COL5_PR_MAT_UOM, sy-vline,
  WA_J_3R_OS1_S2T-N62_COL6_PR_MAT_QNTY, sy-vline,
  WA_J_3R_OS1_S2T-N62_COL7_PR_MAT_MASS, sy-vline,
  WA_J_3R_OS1_S2T-N62_COL7_NOTE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_3R_OS1_S2T 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_3R_OS1_S2T 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_3R_OS1_S2T INTO WA_J_3R_OS1_S2T.


*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 ALPHA, internal->external for field ANLN1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3R_OS1_S2T-ANLN1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3R_OS1_S2T-ANLN1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANLN2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3R_OS1_S2T-ANLN2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3R_OS1_S2T-ANLN2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field N62_COL5_PR_MAT_UOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_3R_OS1_S2T-N62_COL5_PR_MAT_UOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3R_OS1_S2T-N62_COL5_PR_MAT_UOM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_3R_OS1_S2T-UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3R_OS1_S2T-UNIT.
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_3R_OS1_S2T_STR, 
BUKRS TYPE STRING,
ANLN1 TYPE STRING,
ANLN2 TYPE STRING,
N62_COL1_OBJ_NAME TYPE STRING,
N62_COL2_OBJ_QNTY TYPE STRING,
N62_COL3_PR_MAT_NAME TYPE STRING,
N62_COL4_PR_MAT_NOM_NR TYPE STRING,
N62_COL5_PR_MAT_UOM TYPE STRING,
N62_COL6_PR_MAT_QNTY TYPE STRING,
N62_COL7_PR_MAT_MASS TYPE STRING,
N62_COL7_NOTE TYPE STRING,
N62_4A_COL1_SEQ_NR TYPE STRING,
N62_4A_COL2_TECH_PASSPORT_NR TYPE STRING,
N62_4A_COL3_ENGINE_NR TYPE STRING,
N62_4A_COL4_CHASSIS_NR TYPE STRING,
N62_4A_COL5_CAPACITY TYPE STRING,
N62_4A_COL6_MASS TYPE STRING,
CUKY TYPE STRING,
UNIT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_3R_OS1_S2T_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_3R_OS1_S2T_STR-BUKRS sy-vline 
WA_J_3R_OS1_S2T_STR-ANLN1 sy-vline 
WA_J_3R_OS1_S2T_STR-ANLN2 sy-vline 
WA_J_3R_OS1_S2T_STR-N62_COL1_OBJ_NAME sy-vline 
WA_J_3R_OS1_S2T_STR-N62_COL2_OBJ_QNTY sy-vline 
WA_J_3R_OS1_S2T_STR-N62_COL3_PR_MAT_NAME sy-vline 
WA_J_3R_OS1_S2T_STR-N62_COL4_PR_MAT_NOM_NR sy-vline 
WA_J_3R_OS1_S2T_STR-N62_COL5_PR_MAT_UOM sy-vline 
WA_J_3R_OS1_S2T_STR-N62_COL6_PR_MAT_QNTY sy-vline 
WA_J_3R_OS1_S2T_STR-N62_COL7_PR_MAT_MASS sy-vline 
WA_J_3R_OS1_S2T_STR-N62_COL7_NOTE sy-vline 
WA_J_3R_OS1_S2T_STR-N62_4A_COL1_SEQ_NR sy-vline 
WA_J_3R_OS1_S2T_STR-N62_4A_COL2_TECH_PASSPORT_NR sy-vline 
WA_J_3R_OS1_S2T_STR-N62_4A_COL3_ENGINE_NR sy-vline 
WA_J_3R_OS1_S2T_STR-N62_4A_COL4_CHASSIS_NR sy-vline 
WA_J_3R_OS1_S2T_STR-N62_4A_COL5_CAPACITY sy-vline 
WA_J_3R_OS1_S2T_STR-N62_4A_COL6_MASS sy-vline 
WA_J_3R_OS1_S2T_STR-CUKY sy-vline 
WA_J_3R_OS1_S2T_STR-UNIT sy-vline      INTO ld_text SEPARATED BY SPACE.

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