ABAP Select data from SAP table J_3RF_S_TP_GROUPT4_MAINT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_3RF_S_TP_GROUPT4_MAINT 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_3RF_S_TP_GROUPT4_MAINT. 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_3RF_S_TP_GROUPT4_MAINT 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_3RF_S_TP_GROUPT4_MAINT TYPE STANDARD TABLE OF J_3RF_S_TP_GROUPT4_MAINT,
      WA_J_3RF_S_TP_GROUPT4_MAINT TYPE J_3RF_S_TP_GROUPT4_MAINT,
      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_3RF_S_TP_GROUPT4_MAINT> TYPE J_3RF_S_TP_GROUPT4_MAINT.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_3RF_S_TP_GROUPT4_MAINT.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_3RF_S_TP_GROUPT4_MAINT
  INTO TABLE IT_J_3RF_S_TP_GROUPT4_MAINT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_3RF_S_TP_GROUPT4_MAINT
*  INTO TABLE @DATA(IT_J_3RF_S_TP_GROUPT4_MAINT2).
*--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_3RF_S_TP_GROUPT4_MAINT INDEX 1 INTO DATA(WA_J_3RF_S_TP_GROUPT4_MAINT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_3RF_S_TP_GROUPT4_MAINT ASSIGNING <J_3RF_S_TP_GROUPT4_MAINT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_3RF_S_TP_GROUPT4_MAINT>-MANDT = 1.
<J_3RF_S_TP_GROUPT4_MAINT>-TP_GROUP = 1.
<J_3RF_S_TP_GROUPT4_MAINT>-OKVED = 1.
<J_3RF_S_TP_GROUPT4_MAINT>-TP_STATUS = 1.
<J_3RF_S_TP_GROUPT4_MAINT>-TP_STATUS_DESCR = 1.

ENDLOOP.

LOOP AT IT_J_3RF_S_TP_GROUPT4_MAINT INTO WA_J_3RF_S_TP_GROUPT4_MAINT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_3RF_S_TP_GROUPT4_MAINT-AUTO_UPDATE, sy-vline,
  WA_J_3RF_S_TP_GROUPT4_MAINT-AGENCY_COMM, sy-vline,
  WA_J_3RF_S_TP_GROUPT4_MAINT-REASON_121, sy-vline,
  WA_J_3RF_S_TP_GROUPT4_MAINT-REASON_122, sy-vline,
  WA_J_3RF_S_TP_GROUPT4_MAINT-REASON_123, sy-vline,
  WA_J_3RF_S_TP_GROUPT4_MAINT-REASON_124, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_3RF_S_TP_GROUPT4_MAINT 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_3RF_S_TP_GROUPT4_MAINT 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_3RF_S_TP_GROUPT4_MAINT INTO WA_J_3RF_S_TP_GROUPT4_MAINT.


*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_J_3RF_S_TP_GROUPT4_MAINT_STR, 
MANDT TYPE STRING,
TP_GROUP TYPE STRING,
OKVED TYPE STRING,
TP_STATUS TYPE STRING,
TP_STATUS_DESCR TYPE STRING,
AUTO_UPDATE TYPE STRING,
AGENCY_COMM TYPE STRING,
REASON_121 TYPE STRING,
REASON_122 TYPE STRING,
REASON_123 TYPE STRING,
REASON_124 TYPE STRING,
REASON_131 TYPE STRING,
REASON_132 TYPE STRING,
REASON_133 TYPE STRING,
REASON_134 TYPE STRING,
REASON_135 TYPE STRING,
REASON_136 TYPE STRING,
REASON_137 TYPE STRING,
REASON_138 TYPE STRING,
TRANS_TYPE TYPE STRING,
TRANS_TYPE_DESCR TYPE STRING,
TRANSPARTY_CODE TYPE STRING,
TRANSPARTY_CODE_DESCR TYPE STRING,
PARTIES_NUM_COMMENT TYPE STRING,
PICTIC TYPE STRING,
PICTIC_COMMENT TYPE STRING,
PRICE_SOURCE TYPE STRING,
PRICE_SOURCE_DESCR TYPE STRING,
PRICE_SOURCE_COMMENT TYPE STRING,
INFO_SOURCE_251 TYPE STRING,
INFO_SOURCE_252 TYPE STRING,
INFO_SOURCE_253 TYPE STRING,
INFO_SOURCE_254 TYPE STRING,
INFO_SOURCE_255 TYPE STRING,
INFO_SOURCE_256 TYPE STRING,
INFO_SOURCE_257 TYPE STRING,
INFO_SOURCE_258 TYPE STRING,
INFO_SOURCE_259 TYPE STRING,
PRICING_METH TYPE STRING,
PRICING_METH_DESCR TYPE STRING,
PRICING_METH_COMMENT TYPE STRING,
TP_CODE_DESCR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_3RF_S_TP_GROUPT4_MAINT_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_3RF_S_TP_GROUPT4_MAINT_STR-MANDT sy-vline 
WA_J_3RF_S_TP_GROUPT4_MAINT_STR-TP_GROUP sy-vline 
WA_J_3RF_S_TP_GROUPT4_MAINT_STR-OKVED sy-vline 
WA_J_3RF_S_TP_GROUPT4_MAINT_STR-TP_STATUS sy-vline 
WA_J_3RF_S_TP_GROUPT4_MAINT_STR-TP_STATUS_DESCR sy-vline 
WA_J_3RF_S_TP_GROUPT4_MAINT_STR-AUTO_UPDATE sy-vline 
WA_J_3RF_S_TP_GROUPT4_MAINT_STR-AGENCY_COMM sy-vline 
WA_J_3RF_S_TP_GROUPT4_MAINT_STR-REASON_121 sy-vline 
WA_J_3RF_S_TP_GROUPT4_MAINT_STR-REASON_122 sy-vline 
WA_J_3RF_S_TP_GROUPT4_MAINT_STR-REASON_123 sy-vline 
WA_J_3RF_S_TP_GROUPT4_MAINT_STR-REASON_124 sy-vline 
WA_J_3RF_S_TP_GROUPT4_MAINT_STR-REASON_131 sy-vline 
WA_J_3RF_S_TP_GROUPT4_MAINT_STR-REASON_132 sy-vline 
WA_J_3RF_S_TP_GROUPT4_MAINT_STR-REASON_133 sy-vline 
WA_J_3RF_S_TP_GROUPT4_MAINT_STR-REASON_134 sy-vline 
WA_J_3RF_S_TP_GROUPT4_MAINT_STR-REASON_135 sy-vline 
WA_J_3RF_S_TP_GROUPT4_MAINT_STR-REASON_136 sy-vline 
WA_J_3RF_S_TP_GROUPT4_MAINT_STR-REASON_137 sy-vline 
WA_J_3RF_S_TP_GROUPT4_MAINT_STR-REASON_138 sy-vline 
WA_J_3RF_S_TP_GROUPT4_MAINT_STR-TRANS_TYPE sy-vline 
WA_J_3RF_S_TP_GROUPT4_MAINT_STR-TRANS_TYPE_DESCR sy-vline 
WA_J_3RF_S_TP_GROUPT4_MAINT_STR-TRANSPARTY_CODE sy-vline 
WA_J_3RF_S_TP_GROUPT4_MAINT_STR-TRANSPARTY_CODE_DESCR sy-vline 
WA_J_3RF_S_TP_GROUPT4_MAINT_STR-PARTIES_NUM_COMMENT sy-vline 
WA_J_3RF_S_TP_GROUPT4_MAINT_STR-PICTIC sy-vline 
WA_J_3RF_S_TP_GROUPT4_MAINT_STR-PICTIC_COMMENT sy-vline 
WA_J_3RF_S_TP_GROUPT4_MAINT_STR-PRICE_SOURCE sy-vline 
WA_J_3RF_S_TP_GROUPT4_MAINT_STR-PRICE_SOURCE_DESCR sy-vline 
WA_J_3RF_S_TP_GROUPT4_MAINT_STR-PRICE_SOURCE_COMMENT sy-vline 
WA_J_3RF_S_TP_GROUPT4_MAINT_STR-INFO_SOURCE_251 sy-vline 
WA_J_3RF_S_TP_GROUPT4_MAINT_STR-INFO_SOURCE_252 sy-vline 
WA_J_3RF_S_TP_GROUPT4_MAINT_STR-INFO_SOURCE_253 sy-vline 
WA_J_3RF_S_TP_GROUPT4_MAINT_STR-INFO_SOURCE_254 sy-vline 
WA_J_3RF_S_TP_GROUPT4_MAINT_STR-INFO_SOURCE_255 sy-vline 
WA_J_3RF_S_TP_GROUPT4_MAINT_STR-INFO_SOURCE_256 sy-vline 
WA_J_3RF_S_TP_GROUPT4_MAINT_STR-INFO_SOURCE_257 sy-vline 
WA_J_3RF_S_TP_GROUPT4_MAINT_STR-INFO_SOURCE_258 sy-vline 
WA_J_3RF_S_TP_GROUPT4_MAINT_STR-INFO_SOURCE_259 sy-vline 
WA_J_3RF_S_TP_GROUPT4_MAINT_STR-PRICING_METH sy-vline 
WA_J_3RF_S_TP_GROUPT4_MAINT_STR-PRICING_METH_DESCR sy-vline 
WA_J_3RF_S_TP_GROUPT4_MAINT_STR-PRICING_METH_COMMENT sy-vline 
WA_J_3RF_S_TP_GROUPT4_MAINT_STR-TP_CODE_DESCR sy-vline      INTO ld_text SEPARATED BY SPACE.

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