ABAP Select data from SAP table V_FMDECKRG into internal table

Get Example source ABAP code based on a different SAP table
  

Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_FMDECKRG 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 V_FMDECKRG. 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 V_FMDECKRG 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_V_FMDECKRG TYPE STANDARD TABLE OF V_FMDECKRG,
      WA_V_FMDECKRG TYPE V_FMDECKRG,
      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: <V_FMDECKRG> TYPE V_FMDECKRG.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_FMDECKRG
*  INTO TABLE @DATA(IT_V_FMDECKRG2).
*--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_V_FMDECKRG INDEX 1 INTO DATA(WA_V_FMDECKRG2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_FMDECKRG ASSIGNING <V_FMDECKRG>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_FMDECKRG>-MANDT = 1.
<V_FMDECKRG>-DECKRNG = 1.
<V_FMDECKRG>-FIKRS = 1.
<V_FMDECKRG>-GJAHR = 1.
<V_FMDECKRG>-FONDS = 1.
ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_FMDECKRG-REV_EXP_CVP, sy-vline,
WA_V_FMDECKRG-HVMTNR, sy-vline,
WA_V_FMDECKRG-GDPAY, sy-vline,
WA_V_FMDECKRG-GDCOM, sy-vline,
WA_V_FMDECKRG-SORTGRP, sy-vline,
WA_V_FMDECKRG-BESCHR, sy-vline.
ENDLOOP. *Add any further fields from structure WA_V_FMDECKRG 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_V_FMDECKRG 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_V_FMDECKRG INTO WA_V_FMDECKRG. *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 GJAHR, internal->external for field GJAHR CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT' EXPORTING input = WA_V_FMDECKRG-GJAHR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_V_FMDECKRG-GJAHR.
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_V_FMDECKRG_STR,
MANDT TYPE STRING,
DECKRNG TYPE STRING,
FIKRS TYPE STRING,
GJAHR TYPE STRING,
FONDS TYPE STRING,
REV_EXP_CVP TYPE STRING,
HVMTNR TYPE STRING,
GDPAY TYPE STRING,
GDCOM TYPE STRING,
SORTGRP TYPE STRING,
BESCHR TYPE STRING,
TEXT1 TYPE STRING,
TEXT2 TYPE STRING,
TEXT3 TYPE STRING,
DEAKTIV TYPE STRING,
NO_ERROR TYPE STRING,END OF T_EKKO_STR. DATA: WA_V_FMDECKRG_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_V_FMDECKRG_STR-MANDT sy-vline
WA_V_FMDECKRG_STR-DECKRNG sy-vline
WA_V_FMDECKRG_STR-FIKRS sy-vline
WA_V_FMDECKRG_STR-GJAHR sy-vline
WA_V_FMDECKRG_STR-FONDS sy-vline
WA_V_FMDECKRG_STR-REV_EXP_CVP sy-vline
WA_V_FMDECKRG_STR-HVMTNR sy-vline
WA_V_FMDECKRG_STR-GDPAY sy-vline
WA_V_FMDECKRG_STR-GDCOM sy-vline
WA_V_FMDECKRG_STR-SORTGRP sy-vline
WA_V_FMDECKRG_STR-BESCHR sy-vline
WA_V_FMDECKRG_STR-TEXT1 sy-vline
WA_V_FMDECKRG_STR-TEXT2 sy-vline
WA_V_FMDECKRG_STR-TEXT3 sy-vline
WA_V_FMDECKRG_STR-DEAKTIV sy-vline
WA_V_FMDECKRG_STR-NO_ERROR sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.