ABAP Select data from SAP table USS_YS_STH_EXPECT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM USS_YS_STH_EXPECT
*  INTO TABLE @DATA(IT_USS_YS_STH_EXPECT2).
*--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_USS_YS_STH_EXPECT INDEX 1 INTO DATA(WA_USS_YS_STH_EXPECT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<USS_YS_STH_EXPECT>-MANDT = 1.
<USS_YS_STH_EXPECT>-STH_EXPECT = 1.
<USS_YS_STH_EXPECT>-SRM_PARTNER = 1.
<USS_YS_STH_EXPECT>-EXP_TYPE = 1.
<USS_YS_STH_EXPECT>-EXP_DATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_USS_YS_STH_EXPECT-AMOUNT, sy-vline,
  WA_USS_YS_STH_EXPECT-QUANTITY, sy-vline,
  WA_USS_YS_STH_EXPECT-WAERS, sy-vline,
  WA_USS_YS_STH_EXPECT-MSEHI, sy-vline,
  WA_USS_YS_STH_EXPECT-RES_DATE, sy-vline,
  WA_USS_YS_STH_EXPECT-SYS_STATUS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_USS_YS_STH_EXPECT 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_USS_YS_STH_EXPECT 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_USS_YS_STH_EXPECT INTO WA_USS_YS_STH_EXPECT.


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

*Conversion exit CUNIT, internal->external for field MSEHI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_USS_YS_STH_EXPECT-MSEHI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_USS_YS_STH_EXPECT-MSEHI.
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_USS_YS_STH_EXPECT_STR, 
MANDT TYPE STRING,
STH_EXPECT TYPE STRING,
SRM_PARTNER TYPE STRING,
EXP_TYPE TYPE STRING,
EXP_DATE TYPE STRING,
AMOUNT TYPE STRING,
QUANTITY TYPE STRING,
WAERS TYPE STRING,
MSEHI TYPE STRING,
RES_DATE TYPE STRING,
SYS_STATUS TYPE STRING,
OBJTYPE TYPE STRING,
CLASS TYPE STRING,
OBJID TYPE STRING,
CRUSR TYPE STRING,
CRDAT TYPE STRING,
CRTIM TYPE STRING,
CHUSR TYPE STRING,
CHDAT TYPE STRING,
CHTIM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_USS_YS_STH_EXPECT_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_USS_YS_STH_EXPECT_STR-MANDT sy-vline 
WA_USS_YS_STH_EXPECT_STR-STH_EXPECT sy-vline 
WA_USS_YS_STH_EXPECT_STR-SRM_PARTNER sy-vline 
WA_USS_YS_STH_EXPECT_STR-EXP_TYPE sy-vline 
WA_USS_YS_STH_EXPECT_STR-EXP_DATE sy-vline 
WA_USS_YS_STH_EXPECT_STR-AMOUNT sy-vline 
WA_USS_YS_STH_EXPECT_STR-QUANTITY sy-vline 
WA_USS_YS_STH_EXPECT_STR-WAERS sy-vline 
WA_USS_YS_STH_EXPECT_STR-MSEHI sy-vline 
WA_USS_YS_STH_EXPECT_STR-RES_DATE sy-vline 
WA_USS_YS_STH_EXPECT_STR-SYS_STATUS sy-vline 
WA_USS_YS_STH_EXPECT_STR-OBJTYPE sy-vline 
WA_USS_YS_STH_EXPECT_STR-CLASS sy-vline 
WA_USS_YS_STH_EXPECT_STR-OBJID sy-vline 
WA_USS_YS_STH_EXPECT_STR-CRUSR sy-vline 
WA_USS_YS_STH_EXPECT_STR-CRDAT sy-vline 
WA_USS_YS_STH_EXPECT_STR-CRTIM sy-vline 
WA_USS_YS_STH_EXPECT_STR-CHUSR sy-vline 
WA_USS_YS_STH_EXPECT_STR-CHDAT sy-vline 
WA_USS_YS_STH_EXPECT_STR-CHTIM sy-vline      INTO ld_text SEPARATED BY SPACE.

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