ABAP Select data from SAP table ESH_L_CACONTPAR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ESH_L_CACONTPAR
*  INTO TABLE @DATA(IT_ESH_L_CACONTPAR2).
*--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_ESH_L_CACONTPAR INDEX 1 INTO DATA(WA_ESH_L_CACONTPAR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ESH_L_CACONTPAR>-MANDT = 1.
<ESH_L_CACONTPAR>-BUSINESSPARTNER = 1.
<ESH_L_CACONTPAR>-AUTHORIZATIONGROUP = 1.
<ESH_L_CACONTPAR>-BUSINESSPARTNERCATEGORY = 1.
<ESH_L_CACONTPAR>-BUSINESSPARTNERNAME1 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ESH_L_CACONTPAR-BUSINESSPARTNERROLE, sy-vline,
  WA_ESH_L_CACONTPAR-CITYNAME, sy-vline,
  WA_ESH_L_CACONTPAR-COUNTRY, sy-vline,
  WA_ESH_L_CACONTPAR-EMAILADDRESS, sy-vline,
  WA_ESH_L_CACONTPAR-HOUSENUMBER, sy-vline,
  WA_ESH_L_CACONTPAR-ISBUSINESSPURPOSECOMPLETED, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ESH_L_CACONTPAR 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_ESH_L_CACONTPAR 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_ESH_L_CACONTPAR INTO WA_ESH_L_CACONTPAR.


*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 BUSINESSPARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ESH_L_CACONTPAR-BUSINESSPARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESH_L_CACONTPAR-BUSINESSPARTNER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SXIDN, internal->external for field EMAILADDRESS
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_ESH_L_CACONTPAR-EMAILADDRESS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESH_L_CACONTPAR-EMAILADDRESS.
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_ESH_L_CACONTPAR_STR, 
MANDT TYPE STRING,
BUSINESSPARTNER TYPE STRING,
AUTHORIZATIONGROUP TYPE STRING,
BUSINESSPARTNERCATEGORY TYPE STRING,
BUSINESSPARTNERNAME1 TYPE STRING,
BUSINESSPARTNERROLE TYPE STRING,
CITYNAME TYPE STRING,
COUNTRY TYPE STRING,
EMAILADDRESS TYPE STRING,
HOUSENUMBER TYPE STRING,
ISBUSINESSPURPOSECOMPLETED TYPE STRING,
CELLPHONE TYPE STRING,
PHONENUMBER TYPE STRING,
POSTALCODE TYPE STRING,
REGION TYPE STRING,
SEARCHTERM1 TYPE STRING,
STREETNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ESH_L_CACONTPAR_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_ESH_L_CACONTPAR_STR-MANDT sy-vline 
WA_ESH_L_CACONTPAR_STR-BUSINESSPARTNER sy-vline 
WA_ESH_L_CACONTPAR_STR-AUTHORIZATIONGROUP sy-vline 
WA_ESH_L_CACONTPAR_STR-BUSINESSPARTNERCATEGORY sy-vline 
WA_ESH_L_CACONTPAR_STR-BUSINESSPARTNERNAME1 sy-vline 
WA_ESH_L_CACONTPAR_STR-BUSINESSPARTNERROLE sy-vline 
WA_ESH_L_CACONTPAR_STR-CITYNAME sy-vline 
WA_ESH_L_CACONTPAR_STR-COUNTRY sy-vline 
WA_ESH_L_CACONTPAR_STR-EMAILADDRESS sy-vline 
WA_ESH_L_CACONTPAR_STR-HOUSENUMBER sy-vline 
WA_ESH_L_CACONTPAR_STR-ISBUSINESSPURPOSECOMPLETED sy-vline 
WA_ESH_L_CACONTPAR_STR-CELLPHONE sy-vline 
WA_ESH_L_CACONTPAR_STR-PHONENUMBER sy-vline 
WA_ESH_L_CACONTPAR_STR-POSTALCODE sy-vline 
WA_ESH_L_CACONTPAR_STR-REGION sy-vline 
WA_ESH_L_CACONTPAR_STR-SEARCHTERM1 sy-vline 
WA_ESH_L_CACONTPAR_STR-STREETNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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