ABAP Select data from SAP table ARE_PARAMS 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 ARE_PARAMS 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 ARE_PARAMS. 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 ARE_PARAMS 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_ARE_PARAMS TYPE STANDARD TABLE OF ARE_PARAMS,
      WA_ARE_PARAMS TYPE ARE_PARAMS,
      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: <ARE_PARAMS> TYPE ARE_PARAMS.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ARE_PARAMS
*  INTO TABLE @DATA(IT_ARE_PARAMS2).
*--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_ARE_PARAMS INDEX 1 INTO DATA(WA_ARE_PARAMS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ARE_PARAMS>-G_TOT_OTHERS = 1.
<ARE_PARAMS>-G_TOT_R_OTHERS = 1.
<ARE_PARAMS>-G_TOT_DUTY = 1.
<ARE_PARAMS>-TEXT_ID = 1.
<ARE_PARAMS>-TEXT_NAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ARE_PARAMS-G_MODE, sy-vline,
  WA_ARE_PARAMS-G_EXP, sy-vline,
  WA_ARE_PARAMS-G_SEAL, sy-vline,
  WA_ARE_PARAMS-G_CONO, sy-vline,
  WA_ARE_PARAMS-G_EXDAT, sy-vline,
  WA_ARE_PARAMS-G_NOROWS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ARE_PARAMS 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_ARE_PARAMS 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_ARE_PARAMS INTO WA_ARE_PARAMS.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_ARE_PARAMS_STR, 
G_TOT_OTHERS TYPE STRING,
G_TOT_R_OTHERS TYPE STRING,
G_TOT_DUTY TYPE STRING,
TEXT_ID TYPE STRING,
TEXT_NAME TYPE STRING,
G_MODE TYPE STRING,
G_EXP TYPE STRING,
G_SEAL TYPE STRING,
G_CONO TYPE STRING,
G_EXDAT TYPE STRING,
G_NOROWS TYPE STRING,
G_PAGES TYPE STRING,
G_TOT_PAGES TYPE STRING,
G_ROWS TYPE STRING,
G_ADDR_EXC TYPE STRING,
G_ADDR_CUS TYPE STRING,
LKVRS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ARE_PARAMS_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_ARE_PARAMS_STR-G_TOT_OTHERS sy-vline 
WA_ARE_PARAMS_STR-G_TOT_R_OTHERS sy-vline 
WA_ARE_PARAMS_STR-G_TOT_DUTY sy-vline 
WA_ARE_PARAMS_STR-TEXT_ID sy-vline 
WA_ARE_PARAMS_STR-TEXT_NAME sy-vline 
WA_ARE_PARAMS_STR-G_MODE sy-vline 
WA_ARE_PARAMS_STR-G_EXP sy-vline 
WA_ARE_PARAMS_STR-G_SEAL sy-vline 
WA_ARE_PARAMS_STR-G_CONO sy-vline 
WA_ARE_PARAMS_STR-G_EXDAT sy-vline 
WA_ARE_PARAMS_STR-G_NOROWS sy-vline 
WA_ARE_PARAMS_STR-G_PAGES sy-vline 
WA_ARE_PARAMS_STR-G_TOT_PAGES sy-vline 
WA_ARE_PARAMS_STR-G_ROWS sy-vline 
WA_ARE_PARAMS_STR-G_ADDR_EXC sy-vline 
WA_ARE_PARAMS_STR-G_ADDR_CUS sy-vline 
WA_ARE_PARAMS_STR-LKVRS sy-vline      INTO ld_text SEPARATED BY SPACE.

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