ABAP Select data from SAP table ENGREDLINE 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 ENGREDLINE 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 ENGREDLINE. 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 ENGREDLINE 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_ENGREDLINE TYPE STANDARD TABLE OF ENGREDLINE,
      WA_ENGREDLINE TYPE ENGREDLINE,
      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: <ENGREDLINE> TYPE ENGREDLINE.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ENGREDLINE
*  INTO TABLE @DATA(IT_ENGREDLINE2).
*--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_ENGREDLINE INDEX 1 INTO DATA(WA_ENGREDLINE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ENGREDLINE>-CLIENT = 1.
<ENGREDLINE>-UUID = 1.
<ENGREDLINE>-OBJECTKEY = 1.
<ENGREDLINE>-SAPOBJECTTYPE = 1.
<ENGREDLINE>-SRCSAPOBJECTTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ENGREDLINE-NAME, sy-vline,
  WA_ENGREDLINE-TEXT, sy-vline,
  WA_ENGREDLINE-STATUS, sy-vline,
  WA_ENGREDLINE-JSONSTRING, sy-vline,
  WA_ENGREDLINE-CHANGERECORDUUID, sy-vline,
  WA_ENGREDLINE-CHANGENUMBER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ENGREDLINE 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_ENGREDLINE 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_ENGREDLINE INTO WA_ENGREDLINE.


*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_ENGREDLINE_STR, 
CLIENT TYPE STRING,
UUID TYPE STRING,
OBJECTKEY TYPE STRING,
SAPOBJECTTYPE TYPE STRING,
SRCSAPOBJECTTYPE TYPE STRING,
NAME TYPE STRING,
TEXT TYPE STRING,
STATUS TYPE STRING,
JSONSTRING TYPE STRING,
CHANGERECORDUUID TYPE STRING,
CHANGENUMBER TYPE STRING,
PERSONRESPONSIBLE TYPE STRING,
VALIDITYDATE TYPE STRING,
CREATEDBY TYPE STRING,
CREATEDAT TYPE STRING,
LASTCHANGEDBY TYPE STRING,
LASTCHANGEDAT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ENGREDLINE_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_ENGREDLINE_STR-CLIENT sy-vline 
WA_ENGREDLINE_STR-UUID sy-vline 
WA_ENGREDLINE_STR-OBJECTKEY sy-vline 
WA_ENGREDLINE_STR-SAPOBJECTTYPE sy-vline 
WA_ENGREDLINE_STR-SRCSAPOBJECTTYPE sy-vline 
WA_ENGREDLINE_STR-NAME sy-vline 
WA_ENGREDLINE_STR-TEXT sy-vline 
WA_ENGREDLINE_STR-STATUS sy-vline 
WA_ENGREDLINE_STR-JSONSTRING sy-vline 
WA_ENGREDLINE_STR-CHANGERECORDUUID sy-vline 
WA_ENGREDLINE_STR-CHANGENUMBER sy-vline 
WA_ENGREDLINE_STR-PERSONRESPONSIBLE sy-vline 
WA_ENGREDLINE_STR-VALIDITYDATE sy-vline 
WA_ENGREDLINE_STR-CREATEDBY sy-vline 
WA_ENGREDLINE_STR-CREATEDAT sy-vline 
WA_ENGREDLINE_STR-LASTCHANGEDBY sy-vline 
WA_ENGREDLINE_STR-LASTCHANGEDAT sy-vline      INTO ld_text SEPARATED BY SPACE.

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