ABAP Select data from SAP table /INCMD/SCR_SEARCH_CRITERIA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /INCMD/SCR_SEARCH_CRITERIA 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 /INCMD/SCR_SEARCH_CRITERIA. 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 /INCMD/SCR_SEARCH_CRITERIA 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_/INCMD/SCR_SEARCH_CRITERIA TYPE STANDARD TABLE OF /INCMD/SCR_SEARCH_CRITERIA,
      WA_/INCMD/SCR_SEARCH_CRITERIA TYPE /INCMD/SCR_SEARCH_CRITERIA,
      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: </INCMD/SCR_SEARCH_CRITERIA> TYPE /INCMD/SCR_SEARCH_CRITERIA.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /INCMD/SCR_SEARCH_CRITERIA
  INTO TABLE IT_/INCMD/SCR_SEARCH_CRITERIA.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /INCMD/SCR_SEARCH_CRITERIA
*  INTO TABLE @DATA(IT_/INCMD/SCR_SEARCH_CRITERIA2).
*--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_/INCMD/SCR_SEARCH_CRITERIA INDEX 1 INTO DATA(WA_/INCMD/SCR_SEARCH_CRITERIA2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/INCMD/SCR_SEARCH_CRITERIA ASSIGNING </INCMD/SCR_SEARCH_CRITERIA>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</INCMD/SCR_SEARCH_CRITERIA>-PRODUCT_EXT = 1.
</INCMD/SCR_SEARCH_CRITERIA>-CMPEXT = 1.
</INCMD/SCR_SEARCH_CRITERIA>-LOC_EXT = 1.
</INCMD/SCR_SEARCH_CRITERIA>-LOCEXT = 1.
</INCMD/SCR_SEARCH_CRITERIA>-PRODUCT = 1.

ENDLOOP.

LOOP AT IT_/INCMD/SCR_SEARCH_CRITERIA INTO WA_/INCMD/SCR_SEARCH_CRITERIA.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/INCMD/SCR_SEARCH_CRITERIA-ICNUM, sy-vline,
  WA_/INCMD/SCR_SEARCH_CRITERIA-LOCID, sy-vline,
  WA_/INCMD/SCR_SEARCH_CRITERIA-ICNO, sy-vline,
  WA_/INCMD/SCR_SEARCH_CRITERIA-ICTYPE, sy-vline,
  WA_/INCMD/SCR_SEARCH_CRITERIA-VALIDFR, sy-vline,
  WA_/INCMD/SCR_SEARCH_CRITERIA-APPID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/INCMD/SCR_SEARCH_CRITERIA 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_/INCMD/SCR_SEARCH_CRITERIA 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_/INCMD/SCR_SEARCH_CRITERIA INTO WA_/INCMD/SCR_SEARCH_CRITERIA.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_/INCMD/SCR_SEARCH_CRITERIA_STR, 
PRODUCT_EXT TYPE STRING,
CMPEXT TYPE STRING,
LOC_EXT TYPE STRING,
LOCEXT TYPE STRING,
PRODUCT TYPE STRING,
ICNUM TYPE STRING,
LOCID TYPE STRING,
ICNO TYPE STRING,
ICTYPE TYPE STRING,
VALIDFR TYPE STRING,
APPID TYPE STRING,
RELVN TYPE STRING,
ISTAT TYPE STRING,
LAST_CHNG_DATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/INCMD/SCR_SEARCH_CRITERIA_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_/INCMD/SCR_SEARCH_CRITERIA_STR-PRODUCT_EXT sy-vline 
WA_/INCMD/SCR_SEARCH_CRITERIA_STR-CMPEXT sy-vline 
WA_/INCMD/SCR_SEARCH_CRITERIA_STR-LOC_EXT sy-vline 
WA_/INCMD/SCR_SEARCH_CRITERIA_STR-LOCEXT sy-vline 
WA_/INCMD/SCR_SEARCH_CRITERIA_STR-PRODUCT sy-vline 
WA_/INCMD/SCR_SEARCH_CRITERIA_STR-ICNUM sy-vline 
WA_/INCMD/SCR_SEARCH_CRITERIA_STR-LOCID sy-vline 
WA_/INCMD/SCR_SEARCH_CRITERIA_STR-ICNO sy-vline 
WA_/INCMD/SCR_SEARCH_CRITERIA_STR-ICTYPE sy-vline 
WA_/INCMD/SCR_SEARCH_CRITERIA_STR-VALIDFR sy-vline 
WA_/INCMD/SCR_SEARCH_CRITERIA_STR-APPID sy-vline 
WA_/INCMD/SCR_SEARCH_CRITERIA_STR-RELVN sy-vline 
WA_/INCMD/SCR_SEARCH_CRITERIA_STR-ISTAT sy-vline 
WA_/INCMD/SCR_SEARCH_CRITERIA_STR-LAST_CHNG_DATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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