ABAP Select data from SAP table J_3ROS6_HEADER into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_3ROS6_HEADER 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_3ROS6_HEADER. 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_3ROS6_HEADER 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_3ROS6_HEADER TYPE STANDARD TABLE OF J_3ROS6_HEADER,
      WA_J_3ROS6_HEADER TYPE J_3ROS6_HEADER,
      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_3ROS6_HEADER> TYPE J_3ROS6_HEADER.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_3ROS6_HEADER.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_3ROS6_HEADER
  INTO TABLE IT_J_3ROS6_HEADER.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_3ROS6_HEADER
*  INTO TABLE @DATA(IT_J_3ROS6_HEADER2).
*--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_3ROS6_HEADER INDEX 1 INTO DATA(WA_J_3ROS6_HEADER2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_3ROS6_HEADER ASSIGNING <J_3ROS6_HEADER>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_3ROS6_HEADER>-MANDT = 1.
<J_3ROS6_HEADER>-BUKRS = 1.
<J_3ROS6_HEADER>-ALNMB = 1.
<J_3ROS6_HEADER>-ALNMB1 = 1.
<J_3ROS6_HEADER>-ALNMB2 = 1.

ENDLOOP.

LOOP AT IT_J_3ROS6_HEADER INTO WA_J_3ROS6_HEADER.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_3ROS6_HEADER-ALNMB3, sy-vline,
  WA_J_3ROS6_HEADER-ALCLASS, sy-vline,
  WA_J_3ROS6_HEADER-ALCOMPL, sy-vline,
  WA_J_3ROS6_HEADER-ALINVOICE, sy-vline,
  WA_J_3ROS6_HEADER-ALYEAR, sy-vline,
  WA_J_3ROS6_HEADER-ALCOMNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_3ROS6_HEADER 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_3ROS6_HEADER 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_3ROS6_HEADER INTO WA_J_3ROS6_HEADER.


*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 ALNMB1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3ROS6_HEADER-ALNMB1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3ROS6_HEADER-ALNMB1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ALNMB2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3ROS6_HEADER-ALNMB2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3ROS6_HEADER-ALNMB2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ALCLASS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3ROS6_HEADER-ALCLASS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3ROS6_HEADER-ALCLASS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ALINVOICE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3ROS6_HEADER-ALINVOICE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3ROS6_HEADER-ALINVOICE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field ALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_3ROS6_HEADER-ALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3ROS6_HEADER-ALYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GERNR, internal->external for field ALSERN
CALL FUNCTION 'CONVERSION_EXIT_GERNR_OUTPUT'
  EXPORTING
    input =                      WA_J_3ROS6_HEADER-ALSERN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3ROS6_HEADER-ALSERN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ALBUYNMB
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3ROS6_HEADER-ALBUYNMB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3ROS6_HEADER-ALBUYNMB.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ALCODEAN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3ROS6_HEADER-ALCODEAN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3ROS6_HEADER-ALCODEAN.
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_3ROS6_HEADER_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
ALNMB TYPE STRING,
ALNMB1 TYPE STRING,
ALNMB2 TYPE STRING,
ALNMB3 TYPE STRING,
ALCLASS TYPE STRING,
ALCOMPL TYPE STRING,
ALINVOICE TYPE STRING,
ALYEAR TYPE STRING,
ALCOMNAME TYPE STRING,
ALOKPO TYPE STRING,
ALOKOF TYPE STRING,
ALAMGR TYPE STRING,
ALPASP TYPE STRING,
ALSERN TYPE STRING,
ALICDATE TYPE STRING,
ALBUYDATE TYPE STRING,
ALRETDATE TYPE STRING,
ALOPTYPECODE TYPE STRING,
ALBUYNMB TYPE STRING,
ALQUANT TYPE STRING,
ALASNAME TYPE STRING,
ALDIVISION TYPE STRING,
ALLOCATION TYPE STRING,
ALPRODUCER TYPE STRING,
ALMODEL TYPE STRING,
ALACCAM TYPE STRING,
ALCODEAN TYPE STRING,
ALCODEANDEPR TYPE STRING,
ALKINDACTIV TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_3ROS6_HEADER_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_3ROS6_HEADER_STR-MANDT sy-vline 
WA_J_3ROS6_HEADER_STR-BUKRS sy-vline 
WA_J_3ROS6_HEADER_STR-ALNMB sy-vline 
WA_J_3ROS6_HEADER_STR-ALNMB1 sy-vline 
WA_J_3ROS6_HEADER_STR-ALNMB2 sy-vline 
WA_J_3ROS6_HEADER_STR-ALNMB3 sy-vline 
WA_J_3ROS6_HEADER_STR-ALCLASS sy-vline 
WA_J_3ROS6_HEADER_STR-ALCOMPL sy-vline 
WA_J_3ROS6_HEADER_STR-ALINVOICE sy-vline 
WA_J_3ROS6_HEADER_STR-ALYEAR sy-vline 
WA_J_3ROS6_HEADER_STR-ALCOMNAME sy-vline 
WA_J_3ROS6_HEADER_STR-ALOKPO sy-vline 
WA_J_3ROS6_HEADER_STR-ALOKOF sy-vline 
WA_J_3ROS6_HEADER_STR-ALAMGR sy-vline 
WA_J_3ROS6_HEADER_STR-ALPASP sy-vline 
WA_J_3ROS6_HEADER_STR-ALSERN sy-vline 
WA_J_3ROS6_HEADER_STR-ALICDATE sy-vline 
WA_J_3ROS6_HEADER_STR-ALBUYDATE sy-vline 
WA_J_3ROS6_HEADER_STR-ALRETDATE sy-vline 
WA_J_3ROS6_HEADER_STR-ALOPTYPECODE sy-vline 
WA_J_3ROS6_HEADER_STR-ALBUYNMB sy-vline 
WA_J_3ROS6_HEADER_STR-ALQUANT sy-vline 
WA_J_3ROS6_HEADER_STR-ALASNAME sy-vline 
WA_J_3ROS6_HEADER_STR-ALDIVISION sy-vline 
WA_J_3ROS6_HEADER_STR-ALLOCATION sy-vline 
WA_J_3ROS6_HEADER_STR-ALPRODUCER sy-vline 
WA_J_3ROS6_HEADER_STR-ALMODEL sy-vline 
WA_J_3ROS6_HEADER_STR-ALACCAM sy-vline 
WA_J_3ROS6_HEADER_STR-ALCODEAN sy-vline 
WA_J_3ROS6_HEADER_STR-ALCODEANDEPR sy-vline 
WA_J_3ROS6_HEADER_STR-ALKINDACTIV sy-vline      INTO ld_text SEPARATED BY SPACE.

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