ABAP Select data from SAP table EMDUSDIFDAYGRP 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 EMDUSDIFDAYGRP 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 EMDUSDIFDAYGRP. 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 EMDUSDIFDAYGRP 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_EMDUSDIFDAYGRP TYPE STANDARD TABLE OF EMDUSDIFDAYGRP,
      WA_EMDUSDIFDAYGRP TYPE EMDUSDIFDAYGRP,
      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: <EMDUSDIFDAYGRP> TYPE EMDUSDIFDAYGRP.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EMDUSDIFDAYGRP
*  INTO TABLE @DATA(IT_EMDUSDIFDAYGRP2).
*--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_EMDUSDIFDAYGRP INDEX 1 INTO DATA(WA_EMDUSDIFDAYGRP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EMDUSDIFDAYGRP>-MANDT = 1.
<EMDUSDIFDAYGRP>-INTERFACE = 1.
<EMDUSDIFDAYGRP>-SEASON = 1.
<EMDUSDIFDAYGRP>-DAYGROUP = 1.
<EMDUSDIFDAYGRP>-MONDAY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EMDUSDIFDAYGRP-TUESDAY, sy-vline,
  WA_EMDUSDIFDAYGRP-WEDNESDAY, sy-vline,
  WA_EMDUSDIFDAYGRP-THURSDAY, sy-vline,
  WA_EMDUSDIFDAYGRP-FRIDAY, sy-vline,
  WA_EMDUSDIFDAYGRP-SATURDAY, sy-vline,
  WA_EMDUSDIFDAYGRP-SUNDAY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EMDUSDIFDAYGRP 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_EMDUSDIFDAYGRP 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_EMDUSDIFDAYGRP INTO WA_EMDUSDIFDAYGRP.


*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_EMDUSDIFDAYGRP_STR, 
MANDT TYPE STRING,
INTERFACE TYPE STRING,
SEASON TYPE STRING,
DAYGROUP TYPE STRING,
MONDAY TYPE STRING,
TUESDAY TYPE STRING,
WEDNESDAY TYPE STRING,
THURSDAY TYPE STRING,
FRIDAY TYPE STRING,
SATURDAY TYPE STRING,
SUNDAY TYPE STRING,
PUBHOLIDAY TYPE STRING,
EXDAY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EMDUSDIFDAYGRP_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_EMDUSDIFDAYGRP_STR-MANDT sy-vline 
WA_EMDUSDIFDAYGRP_STR-INTERFACE sy-vline 
WA_EMDUSDIFDAYGRP_STR-SEASON sy-vline 
WA_EMDUSDIFDAYGRP_STR-DAYGROUP sy-vline 
WA_EMDUSDIFDAYGRP_STR-MONDAY sy-vline 
WA_EMDUSDIFDAYGRP_STR-TUESDAY sy-vline 
WA_EMDUSDIFDAYGRP_STR-WEDNESDAY sy-vline 
WA_EMDUSDIFDAYGRP_STR-THURSDAY sy-vline 
WA_EMDUSDIFDAYGRP_STR-FRIDAY sy-vline 
WA_EMDUSDIFDAYGRP_STR-SATURDAY sy-vline 
WA_EMDUSDIFDAYGRP_STR-SUNDAY sy-vline 
WA_EMDUSDIFDAYGRP_STR-PUBHOLIDAY sy-vline 
WA_EMDUSDIFDAYGRP_STR-EXDAY sy-vline      INTO ld_text SEPARATED BY SPACE.

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