ABAP Select data from SAP table CSPLEVLRSPEVL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CSPLEVLRSPEVL
*  INTO TABLE @DATA(IT_CSPLEVLRSPEVL2).
*--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_CSPLEVLRSPEVL INDEX 1 INTO DATA(WA_CSPLEVLRSPEVL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CSPLEVLRSPEVL>-MANDT = 1.
<CSPLEVLRSPEVL>-SUPLREVALRSPUUID = 1.
<CSPLEVLRSPEVL>-SUPPLIEREVALRESPONSE = 1.
<CSPLEVLRSPEVL>-NAME = 1.
<CSPLEVLRSPEVL>-SUPLREVALREQEXTERNALNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CSPLEVLRSPEVL-SUPLREVALRSPNAME, sy-vline,
  WA_CSPLEVLRSPEVL-SUPLREVALSTARTDATE, sy-vline,
  WA_CSPLEVLRSPEVL-SUPLREVALENDDATE, sy-vline,
  WA_CSPLEVLRSPEVL-PURGCATUUID, sy-vline,
  WA_CSPLEVLRSPEVL-PURCHASINGCATEGORY, sy-vline,
  WA_CSPLEVLRSPEVL-PURGCATNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CSPLEVLRSPEVL 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_CSPLEVLRSPEVL 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_CSPLEVLRSPEVL INTO WA_CSPLEVLRSPEVL.


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

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

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

*Conversion exit ALPHA, internal->external for field SUPPLIER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CSPLEVLRSPEVL-SUPPLIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSPLEVLRSPEVL-SUPPLIER.
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_CSPLEVLRSPEVL_STR, 
MANDT TYPE STRING,
SUPLREVALRSPUUID TYPE STRING,
SUPPLIEREVALRESPONSE TYPE STRING,
NAME TYPE STRING,
SUPLREVALREQEXTERNALNAME TYPE STRING,
SUPLREVALRSPNAME TYPE STRING,
SUPLREVALSTARTDATE TYPE STRING,
SUPLREVALENDDATE TYPE STRING,
PURGCATUUID TYPE STRING,
PURCHASINGCATEGORY TYPE STRING,
PURGCATNAME TYPE STRING,
PURGCATDESCRIPTION TYPE STRING,
PURGCATTITLE TYPE STRING,
SUPLREVALSUBMISSIONDATETIME TYPE STRING,
SUPLREVALDEADLINEDATE TYPE STRING,
CREATIONDATETIME TYPE STRING,
CREATIONDATE TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATEDBYUSERFULLNAME TYPE STRING,
CREATEDBYUSERDESCRIPTION TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
LASTCHANGEDATE TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
LASTCHANGEDBYUSERFULLNAME TYPE STRING,
LASTCHANGEDBYUSERDESCRIPTION TYPE STRING,
LANGUAGE TYPE STRING,
LANGUAGENAME TYPE STRING,
SUPLREVALRSPLIFECYCLESTATUS TYPE STRING,
SUPLREVALRSPLIFECYCLESTSNAME TYPE STRING,
SUPPLIER TYPE STRING,
AUTHORIZATIONGROUP TYPE STRING,
APPRAISER TYPE STRING,
APPRAISERFULLNAME TYPE STRING,
PURCHASERRESPONSIBLE TYPE STRING,
PERSONFULLNAME TYPE STRING,
USERID TYPE STRING,
PURCHASERRESPFULLNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CSPLEVLRSPEVL_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_CSPLEVLRSPEVL_STR-MANDT sy-vline 
WA_CSPLEVLRSPEVL_STR-SUPLREVALRSPUUID sy-vline 
WA_CSPLEVLRSPEVL_STR-SUPPLIEREVALRESPONSE sy-vline 
WA_CSPLEVLRSPEVL_STR-NAME sy-vline 
WA_CSPLEVLRSPEVL_STR-SUPLREVALREQEXTERNALNAME sy-vline 
WA_CSPLEVLRSPEVL_STR-SUPLREVALRSPNAME sy-vline 
WA_CSPLEVLRSPEVL_STR-SUPLREVALSTARTDATE sy-vline 
WA_CSPLEVLRSPEVL_STR-SUPLREVALENDDATE sy-vline 
WA_CSPLEVLRSPEVL_STR-PURGCATUUID sy-vline 
WA_CSPLEVLRSPEVL_STR-PURCHASINGCATEGORY sy-vline 
WA_CSPLEVLRSPEVL_STR-PURGCATNAME sy-vline 
WA_CSPLEVLRSPEVL_STR-PURGCATDESCRIPTION sy-vline 
WA_CSPLEVLRSPEVL_STR-PURGCATTITLE sy-vline 
WA_CSPLEVLRSPEVL_STR-SUPLREVALSUBMISSIONDATETIME sy-vline 
WA_CSPLEVLRSPEVL_STR-SUPLREVALDEADLINEDATE sy-vline 
WA_CSPLEVLRSPEVL_STR-CREATIONDATETIME sy-vline 
WA_CSPLEVLRSPEVL_STR-CREATIONDATE sy-vline 
WA_CSPLEVLRSPEVL_STR-CREATEDBYUSER sy-vline 
WA_CSPLEVLRSPEVL_STR-CREATEDBYUSERFULLNAME sy-vline 
WA_CSPLEVLRSPEVL_STR-CREATEDBYUSERDESCRIPTION sy-vline 
WA_CSPLEVLRSPEVL_STR-LASTCHANGEDATETIME sy-vline 
WA_CSPLEVLRSPEVL_STR-LASTCHANGEDATE sy-vline 
WA_CSPLEVLRSPEVL_STR-LASTCHANGEDBYUSER sy-vline 
WA_CSPLEVLRSPEVL_STR-LASTCHANGEDBYUSERFULLNAME sy-vline 
WA_CSPLEVLRSPEVL_STR-LASTCHANGEDBYUSERDESCRIPTION sy-vline 
WA_CSPLEVLRSPEVL_STR-LANGUAGE sy-vline 
WA_CSPLEVLRSPEVL_STR-LANGUAGENAME sy-vline 
WA_CSPLEVLRSPEVL_STR-SUPLREVALRSPLIFECYCLESTATUS sy-vline 
WA_CSPLEVLRSPEVL_STR-SUPLREVALRSPLIFECYCLESTSNAME sy-vline 
WA_CSPLEVLRSPEVL_STR-SUPPLIER sy-vline 
WA_CSPLEVLRSPEVL_STR-AUTHORIZATIONGROUP sy-vline 
WA_CSPLEVLRSPEVL_STR-APPRAISER sy-vline 
WA_CSPLEVLRSPEVL_STR-APPRAISERFULLNAME sy-vline 
WA_CSPLEVLRSPEVL_STR-PURCHASERRESPONSIBLE sy-vline 
WA_CSPLEVLRSPEVL_STR-PERSONFULLNAME sy-vline 
WA_CSPLEVLRSPEVL_STR-USERID sy-vline 
WA_CSPLEVLRSPEVL_STR-PURCHASERRESPFULLNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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