ABAP Select data from SAP table V_541N_CH 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_541N_CH 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_541N_CH. 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_541N_CH 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_541N_CH TYPE STANDARD TABLE OF V_541N_CH,
      WA_V_541N_CH TYPE V_541N_CH,
      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_541N_CH> TYPE V_541N_CH.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V_541N_CH.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V_541N_CH
  INTO TABLE IT_V_541N_CH.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_541N_CH
*  INTO TABLE @DATA(IT_V_541N_CH2).
*--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_541N_CH INDEX 1 INTO DATA(WA_V_541N_CH2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_541N_CH ASSIGNING <V_541N_CH>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_541N_CH>-MANDT = 1.
<V_541N_CH>-MOLGA = 1.
<V_541N_CH>-LGART = 1.
<V_541N_CH>-ENDDA = 1.
<V_541N_CH>-LGTXT = 1.
ENDLOOP.

LOOP AT IT_V_541N_CH INTO WA_V_541N_CH.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_541N_CH-BEGDA, sy-vline,
WA_V_541N_CH-NPART, sy-vline,
WA_V_541N_CH-NPTXT, sy-vline,
WA_V_541N_CH-NPSRT, sy-vline,
WA_V_541N_CH-NPRNA, sy-vline,
WA_V_541N_CH-NPED1, sy-vline.
ENDLOOP. *Add any further fields from structure WA_V_541N_CH 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_541N_CH 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_541N_CH INTO WA_V_541N_CH. *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_V_541N_CH_STR,
MANDT TYPE STRING,
MOLGA TYPE STRING,
LGART TYPE STRING,
ENDDA TYPE STRING,
LGTXT TYPE STRING,
BEGDA TYPE STRING,
NPART TYPE STRING,
NPTXT TYPE STRING,
NPSRT TYPE STRING,
NPRNA TYPE STRING,
NPED1 TYPE STRING,
NPED2 TYPE STRING,
NPED3 TYPE STRING,
NPED4 TYPE STRING,
NPED5 TYPE STRING,
LGA01 TYPE STRING,
TXT01 TYPE STRING,
LGA02 TYPE STRING,
TXT02 TYPE STRING,
LGA03 TYPE STRING,
TXT03 TYPE STRING,
LGA04 TYPE STRING,
TXT04 TYPE STRING,
LGA05 TYPE STRING,
TXT05 TYPE STRING,END OF T_EKKO_STR. DATA: WA_V_541N_CH_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_541N_CH_STR-MANDT sy-vline
WA_V_541N_CH_STR-MOLGA sy-vline
WA_V_541N_CH_STR-LGART sy-vline
WA_V_541N_CH_STR-ENDDA sy-vline
WA_V_541N_CH_STR-LGTXT sy-vline
WA_V_541N_CH_STR-BEGDA sy-vline
WA_V_541N_CH_STR-NPART sy-vline
WA_V_541N_CH_STR-NPTXT sy-vline
WA_V_541N_CH_STR-NPSRT sy-vline
WA_V_541N_CH_STR-NPRNA sy-vline
WA_V_541N_CH_STR-NPED1 sy-vline
WA_V_541N_CH_STR-NPED2 sy-vline
WA_V_541N_CH_STR-NPED3 sy-vline
WA_V_541N_CH_STR-NPED4 sy-vline
WA_V_541N_CH_STR-NPED5 sy-vline
WA_V_541N_CH_STR-LGA01 sy-vline
WA_V_541N_CH_STR-TXT01 sy-vline
WA_V_541N_CH_STR-LGA02 sy-vline
WA_V_541N_CH_STR-TXT02 sy-vline
WA_V_541N_CH_STR-LGA03 sy-vline
WA_V_541N_CH_STR-TXT03 sy-vline
WA_V_541N_CH_STR-LGA04 sy-vline
WA_V_541N_CH_STR-TXT04 sy-vline
WA_V_541N_CH_STR-LGA05 sy-vline
WA_V_541N_CH_STR-TXT05 sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.