ABAP Select data from SAP table ERCHZ_I1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ERCHZ_I1 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 ERCHZ_I1. 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 ERCHZ_I1 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_ERCHZ_I1 TYPE STANDARD TABLE OF ERCHZ_I1,
      WA_ERCHZ_I1 TYPE ERCHZ_I1,
      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: <ERCHZ_I1> TYPE ERCHZ_I1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ERCHZ_I1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ERCHZ_I1
  INTO TABLE IT_ERCHZ_I1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ERCHZ_I1
*  INTO TABLE @DATA(IT_ERCHZ_I12).
*--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_ERCHZ_I1 INDEX 1 INTO DATA(WA_ERCHZ_I12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ERCHZ_I1 ASSIGNING <ERCHZ_I1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ERCHZ_I1>-CSNO = 1.
<ERCHZ_I1>-BELZART = 1.
<ERCHZ_I1>-ABSLKZ = 1.
<ERCHZ_I1>-DIFFKZ = 1.
<ERCHZ_I1>-BUCHREL = 1.

ENDLOOP.

LOOP AT IT_ERCHZ_I1 INTO WA_ERCHZ_I1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ERCHZ_I1-MENGESTREL, sy-vline,
  WA_ERCHZ_I1-BETRSTREL, sy-vline,
  WA_ERCHZ_I1-STGRQNT, sy-vline,
  WA_ERCHZ_I1-STGRAMT, sy-vline,
  WA_ERCHZ_I1-PRINTREL, sy-vline,
  WA_ERCHZ_I1-AKLASSE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ERCHZ_I1 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_ERCHZ_I1 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_ERCHZ_I1 INTO WA_ERCHZ_I1.


*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 CUNIT, internal->external for field MASSBILL
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ERCHZ_I1-MASSBILL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ERCHZ_I1-MASSBILL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MASS1
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ERCHZ_I1-MASS1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ERCHZ_I1-MASS1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MASS2
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ERCHZ_I1-MASS2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ERCHZ_I1-MASS2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MASS3
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ERCHZ_I1-MASS3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ERCHZ_I1-MASS3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MASS4
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ERCHZ_I1-MASS4
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ERCHZ_I1-MASS4.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RABZUS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ERCHZ_I1-RABZUS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ERCHZ_I1-RABZUS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BACKDOCNO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ERCHZ_I1-BACKDOCNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ERCHZ_I1-BACKDOCNO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field STAFO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ERCHZ_I1-STAFO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ERCHZ_I1-STAFO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KONZVER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ERCHZ_I1-KONZVER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ERCHZ_I1-KONZVER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field OUCONTRACT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ERCHZ_I1-OUCONTRACT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ERCHZ_I1-OUCONTRACT.
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_ERCHZ_I1_STR, 
CSNO TYPE STRING,
BELZART TYPE STRING,
ABSLKZ TYPE STRING,
DIFFKZ TYPE STRING,
BUCHREL TYPE STRING,
MENGESTREL TYPE STRING,
BETRSTREL TYPE STRING,
STGRQNT TYPE STRING,
STGRAMT TYPE STRING,
PRINTREL TYPE STRING,
AKLASSE TYPE STRING,
BRANCHE TYPE STRING,
TVORG TYPE STRING,
GEGEN_TVORG TYPE STRING,
TAX_TVORG TYPE STRING,
LINESORT TYPE STRING,
AB TYPE STRING,
BIS TYPE STRING,
TIMTYPZA TYPE STRING,
SCHEMANR TYPE STRING,
SNO TYPE STRING,
PROGRAMM TYPE STRING,
MASSBILL TYPE STRING,
SAISON TYPE STRING,
TIMBASIS TYPE STRING,
TIMTYP TYPE STRING,
FRAN_TYPE TYPE STRING,
KONZIGR TYPE STRING,
TARIFTYP TYPE STRING,
TARIFNR TYPE STRING,
KONDIGR TYPE STRING,
STTARIF TYPE STRING,
GEWKEY TYPE STRING,
WDHFAKT TYPE STRING,
TEMP_AREA TYPE STRING,
DRCKSTUF TYPE STRING,
ABGGRND1 TYPE STRING,
ABGGRND2 TYPE STRING,
ABGGRND3 TYPE STRING,
ABGGRND4 TYPE STRING,
ABGGRND5 TYPE STRING,
ABGGRND6 TYPE STRING,
ABGGRND7 TYPE STRING,
ABGGRND8 TYPE STRING,
ABGGRND9 TYPE STRING,
ABGGRND10 TYPE STRING,
EIN01 TYPE STRING,
EIN02 TYPE STRING,
EIN03 TYPE STRING,
EIN04 TYPE STRING,
AUS01 TYPE STRING,
AUS02 TYPE STRING,
MASS1 TYPE STRING,
MASS2 TYPE STRING,
MASS3 TYPE STRING,
MASS4 TYPE STRING,
DATUM1 TYPE STRING,
DATUM2 TYPE STRING,
RABZUS TYPE STRING,
BACKCANC01 TYPE STRING,
BACKCANC02 TYPE STRING,
BACKCANC03 TYPE STRING,
BACKCANC04 TYPE STRING,
BACKCANC05 TYPE STRING,
BACKCANC TYPE STRING,
BACKEXEC TYPE STRING,
BACKDOCNO TYPE STRING,
BACKDOCLINE TYPE STRING,
DYNCANC01 TYPE STRING,
DYNCANC02 TYPE STRING,
DYNCANC03 TYPE STRING,
DYNCANC04 TYPE STRING,
DYNCANC05 TYPE STRING,
DYNCANC TYPE STRING,
DYNEXEC TYPE STRING,
LRATESTEP TYPE STRING,
PEB TYPE STRING,
OPLFDNR TYPE STRING,
STAFO TYPE STRING,
ARTMENGE TYPE STRING,
STATTART TYPE STRING,
TIMECONTRL TYPE STRING,
TCNUMTOR TYPE STRING,
TCDENOMTOR TYPE STRING,
TIMTYPQUOT TYPE STRING,
AKTIV TYPE STRING,
KONZVER TYPE STRING,
PERTYP TYPE STRING,
ERCHV_ANCHOR TYPE STRING,
OUCONTRACT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ERCHZ_I1_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_ERCHZ_I1_STR-CSNO sy-vline 
WA_ERCHZ_I1_STR-BELZART sy-vline 
WA_ERCHZ_I1_STR-ABSLKZ sy-vline 
WA_ERCHZ_I1_STR-DIFFKZ sy-vline 
WA_ERCHZ_I1_STR-BUCHREL sy-vline 
WA_ERCHZ_I1_STR-MENGESTREL sy-vline 
WA_ERCHZ_I1_STR-BETRSTREL sy-vline 
WA_ERCHZ_I1_STR-STGRQNT sy-vline 
WA_ERCHZ_I1_STR-STGRAMT sy-vline 
WA_ERCHZ_I1_STR-PRINTREL sy-vline 
WA_ERCHZ_I1_STR-AKLASSE sy-vline 
WA_ERCHZ_I1_STR-BRANCHE sy-vline 
WA_ERCHZ_I1_STR-TVORG sy-vline 
WA_ERCHZ_I1_STR-GEGEN_TVORG sy-vline 
WA_ERCHZ_I1_STR-TAX_TVORG sy-vline 
WA_ERCHZ_I1_STR-LINESORT sy-vline 
WA_ERCHZ_I1_STR-AB sy-vline 
WA_ERCHZ_I1_STR-BIS sy-vline 
WA_ERCHZ_I1_STR-TIMTYPZA sy-vline 
WA_ERCHZ_I1_STR-SCHEMANR sy-vline 
WA_ERCHZ_I1_STR-SNO sy-vline 
WA_ERCHZ_I1_STR-PROGRAMM sy-vline 
WA_ERCHZ_I1_STR-MASSBILL sy-vline 
WA_ERCHZ_I1_STR-SAISON sy-vline 
WA_ERCHZ_I1_STR-TIMBASIS sy-vline 
WA_ERCHZ_I1_STR-TIMTYP sy-vline 
WA_ERCHZ_I1_STR-FRAN_TYPE sy-vline 
WA_ERCHZ_I1_STR-KONZIGR sy-vline 
WA_ERCHZ_I1_STR-TARIFTYP sy-vline 
WA_ERCHZ_I1_STR-TARIFNR sy-vline 
WA_ERCHZ_I1_STR-KONDIGR sy-vline 
WA_ERCHZ_I1_STR-STTARIF sy-vline 
WA_ERCHZ_I1_STR-GEWKEY sy-vline 
WA_ERCHZ_I1_STR-WDHFAKT sy-vline 
WA_ERCHZ_I1_STR-TEMP_AREA sy-vline 
WA_ERCHZ_I1_STR-DRCKSTUF sy-vline 
WA_ERCHZ_I1_STR-ABGGRND1 sy-vline 
WA_ERCHZ_I1_STR-ABGGRND2 sy-vline 
WA_ERCHZ_I1_STR-ABGGRND3 sy-vline 
WA_ERCHZ_I1_STR-ABGGRND4 sy-vline 
WA_ERCHZ_I1_STR-ABGGRND5 sy-vline 
WA_ERCHZ_I1_STR-ABGGRND6 sy-vline 
WA_ERCHZ_I1_STR-ABGGRND7 sy-vline 
WA_ERCHZ_I1_STR-ABGGRND8 sy-vline 
WA_ERCHZ_I1_STR-ABGGRND9 sy-vline 
WA_ERCHZ_I1_STR-ABGGRND10 sy-vline 
WA_ERCHZ_I1_STR-EIN01 sy-vline 
WA_ERCHZ_I1_STR-EIN02 sy-vline 
WA_ERCHZ_I1_STR-EIN03 sy-vline 
WA_ERCHZ_I1_STR-EIN04 sy-vline 
WA_ERCHZ_I1_STR-AUS01 sy-vline 
WA_ERCHZ_I1_STR-AUS02 sy-vline 
WA_ERCHZ_I1_STR-MASS1 sy-vline 
WA_ERCHZ_I1_STR-MASS2 sy-vline 
WA_ERCHZ_I1_STR-MASS3 sy-vline 
WA_ERCHZ_I1_STR-MASS4 sy-vline 
WA_ERCHZ_I1_STR-DATUM1 sy-vline 
WA_ERCHZ_I1_STR-DATUM2 sy-vline 
WA_ERCHZ_I1_STR-RABZUS sy-vline 
WA_ERCHZ_I1_STR-BACKCANC01 sy-vline 
WA_ERCHZ_I1_STR-BACKCANC02 sy-vline 
WA_ERCHZ_I1_STR-BACKCANC03 sy-vline 
WA_ERCHZ_I1_STR-BACKCANC04 sy-vline 
WA_ERCHZ_I1_STR-BACKCANC05 sy-vline 
WA_ERCHZ_I1_STR-BACKCANC sy-vline 
WA_ERCHZ_I1_STR-BACKEXEC sy-vline 
WA_ERCHZ_I1_STR-BACKDOCNO sy-vline 
WA_ERCHZ_I1_STR-BACKDOCLINE sy-vline 
WA_ERCHZ_I1_STR-DYNCANC01 sy-vline 
WA_ERCHZ_I1_STR-DYNCANC02 sy-vline 
WA_ERCHZ_I1_STR-DYNCANC03 sy-vline 
WA_ERCHZ_I1_STR-DYNCANC04 sy-vline 
WA_ERCHZ_I1_STR-DYNCANC05 sy-vline 
WA_ERCHZ_I1_STR-DYNCANC sy-vline 
WA_ERCHZ_I1_STR-DYNEXEC sy-vline 
WA_ERCHZ_I1_STR-LRATESTEP sy-vline 
WA_ERCHZ_I1_STR-PEB sy-vline 
WA_ERCHZ_I1_STR-OPLFDNR sy-vline 
WA_ERCHZ_I1_STR-STAFO sy-vline 
WA_ERCHZ_I1_STR-ARTMENGE sy-vline 
WA_ERCHZ_I1_STR-STATTART sy-vline 
WA_ERCHZ_I1_STR-TIMECONTRL sy-vline 
WA_ERCHZ_I1_STR-TCNUMTOR sy-vline 
WA_ERCHZ_I1_STR-TCDENOMTOR sy-vline 
WA_ERCHZ_I1_STR-TIMTYPQUOT sy-vline 
WA_ERCHZ_I1_STR-AKTIV sy-vline 
WA_ERCHZ_I1_STR-KONZVER sy-vline 
WA_ERCHZ_I1_STR-PERTYP sy-vline 
WA_ERCHZ_I1_STR-ERCHV_ANCHOR sy-vline 
WA_ERCHZ_I1_STR-OUCONTRACT sy-vline      INTO ld_text SEPARATED BY SPACE.

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