ABAP Select data from SAP table ESH_L_SUPLRSTLMT 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_SUPLRSTLMT 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_SUPLRSTLMT. 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_SUPLRSTLMT 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_SUPLRSTLMT TYPE STANDARD TABLE OF ESH_L_SUPLRSTLMT,
      WA_ESH_L_SUPLRSTLMT TYPE ESH_L_SUPLRSTLMT,
      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_SUPLRSTLMT> TYPE ESH_L_SUPLRSTLMT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ESH_L_SUPLRSTLMT
*  INTO TABLE @DATA(IT_ESH_L_SUPLRSTLMT2).
*--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_SUPLRSTLMT INDEX 1 INTO DATA(WA_ESH_L_SUPLRSTLMT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ESH_L_SUPLRSTLMT>-MANDT = 1.
<ESH_L_SUPLRSTLMT>-SUPLRSETTLMT = 1.
<ESH_L_SUPLRSTLMT>-PAYEEPARTYAUTH = 1.
<ESH_L_SUPLRSTLMT>-INVOICINGPARTYAUTH = 1.
<ESH_L_SUPLRSTLMT>-COMPANYCODENAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ESH_L_SUPLRSTLMT-DOCUMENTDATE, sy-vline,
  WA_ESH_L_SUPLRSTLMT-INVOICINGPARTY, sy-vline,
  WA_ESH_L_SUPLRSTLMT-PAYEEPARTYNAME, sy-vline,
  WA_ESH_L_SUPLRSTLMT-INVOINCINGPARTYNAME, sy-vline,
  WA_ESH_L_SUPLRSTLMT-PAYEEPARTY, sy-vline,
  WA_ESH_L_SUPLRSTLMT-POSTINGDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ESH_L_SUPLRSTLMT 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_SUPLRSTLMT 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_SUPLRSTLMT INTO WA_ESH_L_SUPLRSTLMT.


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

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

*Conversion exit ALPHA, internal->external for field PAYEEPARTY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ESH_L_SUPLRSTLMT-PAYEEPARTY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESH_L_SUPLRSTLMT-PAYEEPARTY.
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_SUPLRSTLMT_STR, 
MANDT TYPE STRING,
SUPLRSETTLMT TYPE STRING,
PAYEEPARTYAUTH TYPE STRING,
INVOICINGPARTYAUTH TYPE STRING,
COMPANYCODENAME TYPE STRING,
DOCUMENTDATE TYPE STRING,
INVOICINGPARTY TYPE STRING,
PAYEEPARTYNAME TYPE STRING,
INVOINCINGPARTYNAME TYPE STRING,
PAYEEPARTY TYPE STRING,
POSTINGDATE TYPE STRING,
PURCHASINGGROUP TYPE STRING,
PURCHASINGGROUPNAME TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
PURCHASINGORGANIZATIONNAME TYPE STRING,
SETTLMTDOCCAT TYPE STRING,
SETTLMTDOCCATNAME TYPE STRING,
SETTLMTDOCTYPE TYPE STRING,
SETTLMTDOCTYPEDESC TYPE STRING,
SETTLMTMGMTACCTGTRANSFSTS TYPE STRING,
SETTLMTMGMTACCTGTRANSFSTSNAME TYPE STRING,
SUPLRSETTLMTCOMPANYCODE TYPE STRING,
SUPPLIERPAYMENTCURRENCY TYPE STRING,
SUPPLIERPAYMENTMETHOD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ESH_L_SUPLRSTLMT_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_SUPLRSTLMT_STR-MANDT sy-vline 
WA_ESH_L_SUPLRSTLMT_STR-SUPLRSETTLMT sy-vline 
WA_ESH_L_SUPLRSTLMT_STR-PAYEEPARTYAUTH sy-vline 
WA_ESH_L_SUPLRSTLMT_STR-INVOICINGPARTYAUTH sy-vline 
WA_ESH_L_SUPLRSTLMT_STR-COMPANYCODENAME sy-vline 
WA_ESH_L_SUPLRSTLMT_STR-DOCUMENTDATE sy-vline 
WA_ESH_L_SUPLRSTLMT_STR-INVOICINGPARTY sy-vline 
WA_ESH_L_SUPLRSTLMT_STR-PAYEEPARTYNAME sy-vline 
WA_ESH_L_SUPLRSTLMT_STR-INVOINCINGPARTYNAME sy-vline 
WA_ESH_L_SUPLRSTLMT_STR-PAYEEPARTY sy-vline 
WA_ESH_L_SUPLRSTLMT_STR-POSTINGDATE sy-vline 
WA_ESH_L_SUPLRSTLMT_STR-PURCHASINGGROUP sy-vline 
WA_ESH_L_SUPLRSTLMT_STR-PURCHASINGGROUPNAME sy-vline 
WA_ESH_L_SUPLRSTLMT_STR-PURCHASINGORGANIZATION sy-vline 
WA_ESH_L_SUPLRSTLMT_STR-PURCHASINGORGANIZATIONNAME sy-vline 
WA_ESH_L_SUPLRSTLMT_STR-SETTLMTDOCCAT sy-vline 
WA_ESH_L_SUPLRSTLMT_STR-SETTLMTDOCCATNAME sy-vline 
WA_ESH_L_SUPLRSTLMT_STR-SETTLMTDOCTYPE sy-vline 
WA_ESH_L_SUPLRSTLMT_STR-SETTLMTDOCTYPEDESC sy-vline 
WA_ESH_L_SUPLRSTLMT_STR-SETTLMTMGMTACCTGTRANSFSTS sy-vline 
WA_ESH_L_SUPLRSTLMT_STR-SETTLMTMGMTACCTGTRANSFSTSNAME sy-vline 
WA_ESH_L_SUPLRSTLMT_STR-SUPLRSETTLMTCOMPANYCODE sy-vline 
WA_ESH_L_SUPLRSTLMT_STR-SUPPLIERPAYMENTCURRENCY sy-vline 
WA_ESH_L_SUPLRSTLMT_STR-SUPPLIERPAYMENTMETHOD sy-vline      INTO ld_text SEPARATED BY SPACE.

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