ABAP Select data from SAP table E1FRDEQU1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E1FRDEQU1 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 E1FRDEQU1. 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 E1FRDEQU1 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_E1FRDEQU1 TYPE STANDARD TABLE OF E1FRDEQU1,
      WA_E1FRDEQU1 TYPE E1FRDEQU1,
      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: <E1FRDEQU1> TYPE E1FRDEQU1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E1FRDEQU1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E1FRDEQU1
  INTO TABLE IT_E1FRDEQU1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E1FRDEQU1
*  INTO TABLE @DATA(IT_E1FRDEQU12).
*--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_E1FRDEQU1 INDEX 1 INTO DATA(WA_E1FRDEQU12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E1FRDEQU1 ASSIGNING <E1FRDEQU1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E1FRDEQU1>-EQUI_TYPE = 1.
<E1FRDEQU1>-EQUI_SIZE_TYPE = 1.
<E1FRDEQU1>-EQUI_SUPPLIER_CD = 1.
<E1FRDEQU1>-EQUI_STATUS_CODE = 1.
<E1FRDEQU1>-EQUI_FILL = 1.

ENDLOOP.

LOOP AT IT_E1FRDEQU1 INTO WA_E1FRDEQU1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E1FRDEQU1-EQUI_QTY, sy-vline,
  WA_E1FRDEQU1-EQUI_QTY_UNIT, sy-vline,
  WA_E1FRDEQU1-HEIGHT, sy-vline,
  WA_E1FRDEQU1-HEIGHT_UNIT, sy-vline,
  WA_E1FRDEQU1-LENGTH, sy-vline,
  WA_E1FRDEQU1-LENGTH_UNIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E1FRDEQU1 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_E1FRDEQU1 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_E1FRDEQU1 INTO WA_E1FRDEQU1.


*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_E1FRDEQU1_STR, 
EQUI_TYPE TYPE STRING,
EQUI_SIZE_TYPE TYPE STRING,
EQUI_SUPPLIER_CD TYPE STRING,
EQUI_STATUS_CODE TYPE STRING,
EQUI_FILL TYPE STRING,
EQUI_QTY TYPE STRING,
EQUI_QTY_UNIT TYPE STRING,
HEIGHT TYPE STRING,
HEIGHT_UNIT TYPE STRING,
LENGTH TYPE STRING,
LENGTH_UNIT TYPE STRING,
WIDTH TYPE STRING,
WIDTH_UNIT TYPE STRING,
VOL TYPE STRING,
VOL_UNIT TYPE STRING,
WEIGHT TYPE STRING,
WEIGHT_UNIT TYPE STRING,
SEAL_ID TYPE STRING,
SEAL_PRT_NO TYPE STRING,
SEAL_BSKEY_PRT TYPE STRING,
SEAL_CND TYPE STRING,
SEAL_NR_RANGE TYPE STRING,
TRANSMEANS_ID TYPE STRING,
TRANSMEANS_DESC TYPE STRING,
LICENCE_PLATE TYPE STRING,
HANDL_INS_CODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E1FRDEQU1_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_E1FRDEQU1_STR-EQUI_TYPE sy-vline 
WA_E1FRDEQU1_STR-EQUI_SIZE_TYPE sy-vline 
WA_E1FRDEQU1_STR-EQUI_SUPPLIER_CD sy-vline 
WA_E1FRDEQU1_STR-EQUI_STATUS_CODE sy-vline 
WA_E1FRDEQU1_STR-EQUI_FILL sy-vline 
WA_E1FRDEQU1_STR-EQUI_QTY sy-vline 
WA_E1FRDEQU1_STR-EQUI_QTY_UNIT sy-vline 
WA_E1FRDEQU1_STR-HEIGHT sy-vline 
WA_E1FRDEQU1_STR-HEIGHT_UNIT sy-vline 
WA_E1FRDEQU1_STR-LENGTH sy-vline 
WA_E1FRDEQU1_STR-LENGTH_UNIT sy-vline 
WA_E1FRDEQU1_STR-WIDTH sy-vline 
WA_E1FRDEQU1_STR-WIDTH_UNIT sy-vline 
WA_E1FRDEQU1_STR-VOL sy-vline 
WA_E1FRDEQU1_STR-VOL_UNIT sy-vline 
WA_E1FRDEQU1_STR-WEIGHT sy-vline 
WA_E1FRDEQU1_STR-WEIGHT_UNIT sy-vline 
WA_E1FRDEQU1_STR-SEAL_ID sy-vline 
WA_E1FRDEQU1_STR-SEAL_PRT_NO sy-vline 
WA_E1FRDEQU1_STR-SEAL_BSKEY_PRT sy-vline 
WA_E1FRDEQU1_STR-SEAL_CND sy-vline 
WA_E1FRDEQU1_STR-SEAL_NR_RANGE sy-vline 
WA_E1FRDEQU1_STR-TRANSMEANS_ID sy-vline 
WA_E1FRDEQU1_STR-TRANSMEANS_DESC sy-vline 
WA_E1FRDEQU1_STR-LICENCE_PLATE sy-vline 
WA_E1FRDEQU1_STR-HANDL_INS_CODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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