ABAP Select data from SAP table ESH_L_CONTRACTAC 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_CONTRACTAC 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_CONTRACTAC. 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_CONTRACTAC 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_CONTRACTAC TYPE STANDARD TABLE OF ESH_L_CONTRACTAC,
      WA_ESH_L_CONTRACTAC TYPE ESH_L_CONTRACTAC,
      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_CONTRACTAC> TYPE ESH_L_CONTRACTAC.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ESH_L_CONTRACTAC
*  INTO TABLE @DATA(IT_ESH_L_CONTRACTAC2).
*--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_CONTRACTAC INDEX 1 INTO DATA(WA_ESH_L_CONTRACTAC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ESH_L_CONTRACTAC>-MANDT = 1.
<ESH_L_CONTRACTAC>-BUSINESSPARTNER = 1.
<ESH_L_CONTRACTAC>-CONTRACTACCOUNT = 1.
<ESH_L_CONTRACTAC>-CAAUTHORIZATIONGROUP = 1.
<ESH_L_CONTRACTAC>-CABUSINESSPARTNERFORPAYMENT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ESH_L_CONTRACTAC-CACOMPANYCODEGROUP, sy-vline,
  WA_ESH_L_CONTRACTAC-CACOMPANYCODEGROUPNAME, sy-vline,
  WA_ESH_L_CONTRACTAC-CACORRESPONDENCEVARIANTNAME, sy-vline,
  WA_ESH_L_CONTRACTAC-CADUNNINGPROCEDURENAME, sy-vline,
  WA_ESH_L_CONTRACTAC-CAINVCGCATEGORYTEXT, sy-vline,
  WA_ESH_L_CONTRACTAC-CARELATIONSHIPOFBPTOCONTRACCT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ESH_L_CONTRACTAC 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_CONTRACTAC 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_CONTRACTAC INTO WA_ESH_L_CONTRACTAC.


*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_CONTRACTAC-BUSINESSPARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESH_L_CONTRACTAC-BUSINESSPARTNER.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field CABUSINESSPARTNERFORPAYMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ESH_L_CONTRACTAC-CABUSINESSPARTNERFORPAYMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESH_L_CONTRACTAC-CABUSINESSPARTNERFORPAYMENT.
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_CONTRACTAC_STR, 
MANDT TYPE STRING,
BUSINESSPARTNER TYPE STRING,
CONTRACTACCOUNT TYPE STRING,
CAAUTHORIZATIONGROUP TYPE STRING,
CABUSINESSPARTNERFORPAYMENT TYPE STRING,
CACOMPANYCODEGROUP TYPE STRING,
CACOMPANYCODEGROUPNAME TYPE STRING,
CACORRESPONDENCEVARIANTNAME TYPE STRING,
CADUNNINGPROCEDURENAME TYPE STRING,
CAINVCGCATEGORYTEXT TYPE STRING,
CARELATIONSHIPOFBPTOCONTRACCT TYPE STRING,
CARELSHPOFBPTOCONTRACCTNAME TYPE STRING,
CASTANDARDCOMPANYCODE TYPE STRING,
CONTRACTACCOUNTCATEGORY TYPE STRING,
CONTRACTACCOUNTCATEGORYNAME TYPE STRING,
CONTRACTACCOUNTNAME TYPE STRING,
PAYMENTCONDITIONNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ESH_L_CONTRACTAC_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_CONTRACTAC_STR-MANDT sy-vline 
WA_ESH_L_CONTRACTAC_STR-BUSINESSPARTNER sy-vline 
WA_ESH_L_CONTRACTAC_STR-CONTRACTACCOUNT sy-vline 
WA_ESH_L_CONTRACTAC_STR-CAAUTHORIZATIONGROUP sy-vline 
WA_ESH_L_CONTRACTAC_STR-CABUSINESSPARTNERFORPAYMENT sy-vline 
WA_ESH_L_CONTRACTAC_STR-CACOMPANYCODEGROUP sy-vline 
WA_ESH_L_CONTRACTAC_STR-CACOMPANYCODEGROUPNAME sy-vline 
WA_ESH_L_CONTRACTAC_STR-CACORRESPONDENCEVARIANTNAME sy-vline 
WA_ESH_L_CONTRACTAC_STR-CADUNNINGPROCEDURENAME sy-vline 
WA_ESH_L_CONTRACTAC_STR-CAINVCGCATEGORYTEXT sy-vline 
WA_ESH_L_CONTRACTAC_STR-CARELATIONSHIPOFBPTOCONTRACCT sy-vline 
WA_ESH_L_CONTRACTAC_STR-CARELSHPOFBPTOCONTRACCTNAME sy-vline 
WA_ESH_L_CONTRACTAC_STR-CASTANDARDCOMPANYCODE sy-vline 
WA_ESH_L_CONTRACTAC_STR-CONTRACTACCOUNTCATEGORY sy-vline 
WA_ESH_L_CONTRACTAC_STR-CONTRACTACCOUNTCATEGORYNAME sy-vline 
WA_ESH_L_CONTRACTAC_STR-CONTRACTACCOUNTNAME sy-vline 
WA_ESH_L_CONTRACTAC_STR-PAYMENTCONDITIONNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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