ABAP Select data from SAP table EHAU into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EHAU
*  INTO TABLE @DATA(IT_EHAU2).
*--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_EHAU INDEX 1 INTO DATA(WA_EHAU2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EHAU>-MANDT = 1.
<EHAU>-HAUS = 1.
<EHAU>-SPRAS = 1.
<EHAU>-PLTXT = 1.
<EHAU>-KZLTX = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EHAU-TPLKZ, sy-vline,
  WA_EHAU-FLTYP, sy-vline,
  WA_EHAU-TPLMA, sy-vline,
  WA_EHAU-DATAB, sy-vline,
  WA_EHAU-BEGRU, sy-vline,
  WA_EHAU-EINZLI, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EHAU 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_EHAU 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_EHAU INTO WA_EHAU.


*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 TPLNR, internal->external for field HAUS
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_EHAU-HAUS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHAU-HAUS.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit TPLNR, internal->external for field TPLMA
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_EHAU-TPLMA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHAU-TPLMA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ADDRNUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EHAU-ADDRNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHAU-ADDRNUMBER.
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_EHAU_STR, 
MANDT TYPE STRING,
HAUS TYPE STRING,
SPRAS TYPE STRING,
PLTXT TYPE STRING,
KZLTX TYPE STRING,
TPLKZ TYPE STRING,
FLTYP TYPE STRING,
TPLMA TYPE STRING,
DATAB TYPE STRING,
BEGRU TYPE STRING,
EINZLI TYPE STRING,
IWERK TYPE STRING,
IWERKI TYPE STRING,
POSNR TYPE STRING,
ISTYP TYPE STRING,
PREMS TYPE STRING,
EQFNR TYPE STRING,
SWERK TYPE STRING,
SWERKI TYPE STRING,
BUKRS TYPE STRING,
BUKRSI TYPE STRING,
ADDRNUMBER TYPE STRING,
ADRNRI TYPE STRING,
LVORM TYPE STRING,
ILOAN TYPE STRING,
IEQUI TYPE STRING,
IEQUII TYPE STRING,
COUNC TYPE STRING,
REGIOGROUP TYPE STRING,
REGPOLIT TYPE STRING,
REGIOGROUP_PERM TYPE STRING,
OBJNR TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
CRM_GUID TYPE STRING,
STRNO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EHAU_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_EHAU_STR-MANDT sy-vline 
WA_EHAU_STR-HAUS sy-vline 
WA_EHAU_STR-SPRAS sy-vline 
WA_EHAU_STR-PLTXT sy-vline 
WA_EHAU_STR-KZLTX sy-vline 
WA_EHAU_STR-TPLKZ sy-vline 
WA_EHAU_STR-FLTYP sy-vline 
WA_EHAU_STR-TPLMA sy-vline 
WA_EHAU_STR-DATAB sy-vline 
WA_EHAU_STR-BEGRU sy-vline 
WA_EHAU_STR-EINZLI sy-vline 
WA_EHAU_STR-IWERK sy-vline 
WA_EHAU_STR-IWERKI sy-vline 
WA_EHAU_STR-POSNR sy-vline 
WA_EHAU_STR-ISTYP sy-vline 
WA_EHAU_STR-PREMS sy-vline 
WA_EHAU_STR-EQFNR sy-vline 
WA_EHAU_STR-SWERK sy-vline 
WA_EHAU_STR-SWERKI sy-vline 
WA_EHAU_STR-BUKRS sy-vline 
WA_EHAU_STR-BUKRSI sy-vline 
WA_EHAU_STR-ADDRNUMBER sy-vline 
WA_EHAU_STR-ADRNRI sy-vline 
WA_EHAU_STR-LVORM sy-vline 
WA_EHAU_STR-ILOAN sy-vline 
WA_EHAU_STR-IEQUI sy-vline 
WA_EHAU_STR-IEQUII sy-vline 
WA_EHAU_STR-COUNC sy-vline 
WA_EHAU_STR-REGIOGROUP sy-vline 
WA_EHAU_STR-REGPOLIT sy-vline 
WA_EHAU_STR-REGIOGROUP_PERM sy-vline 
WA_EHAU_STR-OBJNR sy-vline 
WA_EHAU_STR-ERDAT sy-vline 
WA_EHAU_STR-ERNAM sy-vline 
WA_EHAU_STR-AEDAT sy-vline 
WA_EHAU_STR-AENAM sy-vline 
WA_EHAU_STR-CRM_GUID sy-vline 
WA_EHAU_STR-STRNO sy-vline      INTO ld_text SEPARATED BY SPACE.

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