ABAP Select data from SAP table CSTLAPRVLUNPROVD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CSTLAPRVLUNPROVD
*  INTO TABLE @DATA(IT_CSTLAPRVLUNPROVD2).
*--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_CSTLAPRVLUNPROVD INDEX 1 INTO DATA(WA_CSTLAPRVLUNPROVD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CSTLAPRVLUNPROVD>-MANDT = 1.
<CSTLAPRVLUNPROVD>-SETTLEMENTDOCHEADERUUID = 1.
<CSTLAPRVLUNPROVD>-ACMSETTLEMENTITEMUUID = 1.
<CSTLAPRVLUNPROVD>-ACMPRICINGASPECT = 1.
<CSTLAPRVLUNPROVD>-ACMPRICINGASPECTVALUE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CSTLAPRVLUNPROVD-ACMSETTLEMENTSEQUENCENMBR, sy-vline,
  WA_CSTLAPRVLUNPROVD-MATERIALFORDISPLAY, sy-vline,
  WA_CSTLAPRVLUNPROVD-ACMSETTLMTOVERRIDEAMOUNT, sy-vline,
  WA_CSTLAPRVLUNPROVD-ACMSETTLMTPRCCHANGEDDATE, sy-vline,
  WA_CSTLAPRVLUNPROVD-APPLDOCUMENTCREATEDBY, sy-vline,
  WA_CSTLAPRVLUNPROVD-ACMSETTLMTPRCOVERRIDESOURCE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CSTLAPRVLUNPROVD 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_CSTLAPRVLUNPROVD 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_CSTLAPRVLUNPROVD INTO WA_CSTLAPRVLUNPROVD.


*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 MATN1, internal->external for field MATERIALFORDISPLAY
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_CSTLAPRVLUNPROVD-MATERIALFORDISPLAY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSTLAPRVLUNPROVD-MATERIALFORDISPLAY.
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_CSTLAPRVLUNPROVD_STR, 
MANDT TYPE STRING,
SETTLEMENTDOCHEADERUUID TYPE STRING,
ACMSETTLEMENTITEMUUID TYPE STRING,
ACMPRICINGASPECT TYPE STRING,
ACMPRICINGASPECTVALUE TYPE STRING,
ACMSETTLEMENTSEQUENCENMBR TYPE STRING,
MATERIALFORDISPLAY TYPE STRING,
ACMSETTLMTOVERRIDEAMOUNT TYPE STRING,
ACMSETTLMTPRCCHANGEDDATE TYPE STRING,
APPLDOCUMENTCREATEDBY TYPE STRING,
ACMSETTLMTPRCOVERRIDESOURCE TYPE STRING,
ACMSETTLMTPRCOVRRDESOURCENAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CSTLAPRVLUNPROVD_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_CSTLAPRVLUNPROVD_STR-MANDT sy-vline 
WA_CSTLAPRVLUNPROVD_STR-SETTLEMENTDOCHEADERUUID sy-vline 
WA_CSTLAPRVLUNPROVD_STR-ACMSETTLEMENTITEMUUID sy-vline 
WA_CSTLAPRVLUNPROVD_STR-ACMPRICINGASPECT sy-vline 
WA_CSTLAPRVLUNPROVD_STR-ACMPRICINGASPECTVALUE sy-vline 
WA_CSTLAPRVLUNPROVD_STR-ACMSETTLEMENTSEQUENCENMBR sy-vline 
WA_CSTLAPRVLUNPROVD_STR-MATERIALFORDISPLAY sy-vline 
WA_CSTLAPRVLUNPROVD_STR-ACMSETTLMTOVERRIDEAMOUNT sy-vline 
WA_CSTLAPRVLUNPROVD_STR-ACMSETTLMTPRCCHANGEDDATE sy-vline 
WA_CSTLAPRVLUNPROVD_STR-APPLDOCUMENTCREATEDBY sy-vline 
WA_CSTLAPRVLUNPROVD_STR-ACMSETTLMTPRCOVERRIDESOURCE sy-vline 
WA_CSTLAPRVLUNPROVD_STR-ACMSETTLMTPRCOVRRDESOURCENAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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