ABAP Select data from SAP table ESTRI into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ESTRI
*  INTO TABLE @DATA(IT_ESTRI2).
*--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_ESTRI INDEX 1 INTO DATA(WA_ESTRI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ESTRI>-MANDT = 1.
<ESTRI>-RECN = 1.
<ESTRI>-ACTN = 1.
<ESTRI>-VALFR = 1.
<ESTRI>-VALTO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ESTRI-AENNR, sy-vline,
  WA_ESTRI-DELFLG, sy-vline,
  WA_ESTRI-PARKFLG, sy-vline,
  WA_ESTRI-CRDAT, sy-vline,
  WA_ESTRI-CRNAM, sy-vline,
  WA_ESTRI-UPDDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ESTRI 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_ESTRI 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_ESTRI INTO WA_ESTRI.


*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 ALPHA, internal->external for field RECN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ESTRI-RECN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESTRI-RECN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ACTN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ESTRI-ACTN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESTRI-ACTN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AENNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ESTRI-AENNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESTRI-AENNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field OWNID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ESTRI-OWNID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESTRI-OWNID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RECNROOT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ESTRI-RECNROOT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESTRI-RECNROOT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_ESTRI-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESTRI-LANGU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DOKNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ESTRI-DOKNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESTRI-DOKNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RECN_TPLH
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ESTRI-RECN_TPLH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESTRI-RECN_TPLH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RECNTRI_SRC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ESTRI-RECNTRI_SRC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESTRI-RECNTRI_SRC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RECNTRI_ORIG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ESTRI-RECNTRI_ORIG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESTRI-RECNTRI_ORIG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RECNROOT_ORIG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ESTRI-RECNROOT_ORIG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESTRI-RECNROOT_ORIG.
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_ESTRI_STR, 
MANDT TYPE STRING,
RECN TYPE STRING,
ACTN TYPE STRING,
VALFR TYPE STRING,
VALTO TYPE STRING,
AENNR TYPE STRING,
DELFLG TYPE STRING,
PARKFLG TYPE STRING,
CRDAT TYPE STRING,
CRNAM TYPE STRING,
UPDDAT TYPE STRING,
UPDNAM TYPE STRING,
SRSID TYPE STRING,
OWNID TYPE STRING,
RECNROOT TYPE STRING,
IDTYPE TYPE STRING,
IDCAT TYPE STRING,
LANGU TYPE STRING,
IDENT TYPE STRING,
IDENTNM TYPE STRING,
LTXTFLG TYPE STRING,
FORMATFLG TYPE STRING,
ORD TYPE STRING,
DOKAR TYPE STRING,
DOKNR TYPE STRING,
DOKVR TYPE STRING,
DOKTL TYPE STRING,
FLG_INHSRC TYPE STRING,
FLG_INHOVR TYPE STRING,
FLG_INHEXCL TYPE STRING,
RECN_TPLH TYPE STRING,
RECNTRI_SRC TYPE STRING,
RECNTRI_ORIG TYPE STRING,
RECNROOT_ORIG TYPE STRING,
TPL_ORD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ESTRI_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_ESTRI_STR-MANDT sy-vline 
WA_ESTRI_STR-RECN sy-vline 
WA_ESTRI_STR-ACTN sy-vline 
WA_ESTRI_STR-VALFR sy-vline 
WA_ESTRI_STR-VALTO sy-vline 
WA_ESTRI_STR-AENNR sy-vline 
WA_ESTRI_STR-DELFLG sy-vline 
WA_ESTRI_STR-PARKFLG sy-vline 
WA_ESTRI_STR-CRDAT sy-vline 
WA_ESTRI_STR-CRNAM sy-vline 
WA_ESTRI_STR-UPDDAT sy-vline 
WA_ESTRI_STR-UPDNAM sy-vline 
WA_ESTRI_STR-SRSID sy-vline 
WA_ESTRI_STR-OWNID sy-vline 
WA_ESTRI_STR-RECNROOT sy-vline 
WA_ESTRI_STR-IDTYPE sy-vline 
WA_ESTRI_STR-IDCAT sy-vline 
WA_ESTRI_STR-LANGU sy-vline 
WA_ESTRI_STR-IDENT sy-vline 
WA_ESTRI_STR-IDENTNM sy-vline 
WA_ESTRI_STR-LTXTFLG sy-vline 
WA_ESTRI_STR-FORMATFLG sy-vline 
WA_ESTRI_STR-ORD sy-vline 
WA_ESTRI_STR-DOKAR sy-vline 
WA_ESTRI_STR-DOKNR sy-vline 
WA_ESTRI_STR-DOKVR sy-vline 
WA_ESTRI_STR-DOKTL sy-vline 
WA_ESTRI_STR-FLG_INHSRC sy-vline 
WA_ESTRI_STR-FLG_INHOVR sy-vline 
WA_ESTRI_STR-FLG_INHEXCL sy-vline 
WA_ESTRI_STR-RECN_TPLH sy-vline 
WA_ESTRI_STR-RECNTRI_SRC sy-vline 
WA_ESTRI_STR-RECNTRI_ORIG sy-vline 
WA_ESTRI_STR-RECNROOT_ORIG sy-vline 
WA_ESTRI_STR-TPL_ORD sy-vline      INTO ld_text SEPARATED BY SPACE.

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