ABAP Select data from SAP table ISU_RATE_SEARCH into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISU_RATE_SEARCH
*  INTO TABLE @DATA(IT_ISU_RATE_SEARCH2).
*--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_ISU_RATE_SEARCH INDEX 1 INTO DATA(WA_ISU_RATE_SEARCH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISU_RATE_SEARCH>-FL_VARIANT = 1.
<ISU_RATE_SEARCH>-FL_OPERAND = 1.
<ISU_RATE_SEARCH>-FL_OPTYP = 1.
<ISU_RATE_SEARCH>-FL_TIMECONTRL = 1.
<ISU_RATE_SEARCH>-FL_TVORG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISU_RATE_SEARCH-FL_BELZART, sy-vline,
  WA_ISU_RATE_SEARCH-FL_KONZIGR, sy-vline,
  WA_ISU_RATE_SEARCH-FL_SAISON, sy-vline,
  WA_ISU_RATE_SEARCH-FL_STTARIF, sy-vline,
  WA_ISU_RATE_SEARCH-FL_TARIFNR, sy-vline,
  WA_ISU_RATE_SEARCH-FL_PREISZUS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISU_RATE_SEARCH 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_ISU_RATE_SEARCH 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_ISU_RATE_SEARCH INTO WA_ISU_RATE_SEARCH.


*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_ISU_RATE_SEARCH_STR, 
FL_VARIANT TYPE STRING,
FL_OPERAND TYPE STRING,
FL_OPTYP TYPE STRING,
FL_TIMECONTRL TYPE STRING,
FL_TVORG TYPE STRING,
FL_BELZART TYPE STRING,
FL_KONZIGR TYPE STRING,
FL_SAISON TYPE STRING,
FL_STTARIF TYPE STRING,
FL_TARIFNR TYPE STRING,
FL_PREISZUS TYPE STRING,
FL_GROSSGROUP TYPE STRING,
FL_LINE_CLASS TYPE STRING,
FL_LINESORT TYPE STRING,
FL_BACKGROUP TYPE STRING,
FL_TIMESLICEGEN TYPE STRING,
FL_DELOPERAND TYPE STRING,
FL_STGRQNT TYPE STRING,
FL_STGRAMT TYPE STRING,
STRING TYPE STRING,
FL_START TYPE STRING,
FL_CURSOR TYPE STRING,
FL_HITLIST TYPE STRING,
FL_CANCELED TYPE STRING,
FL_ADVCONTROL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISU_RATE_SEARCH_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_ISU_RATE_SEARCH_STR-FL_VARIANT sy-vline 
WA_ISU_RATE_SEARCH_STR-FL_OPERAND sy-vline 
WA_ISU_RATE_SEARCH_STR-FL_OPTYP sy-vline 
WA_ISU_RATE_SEARCH_STR-FL_TIMECONTRL sy-vline 
WA_ISU_RATE_SEARCH_STR-FL_TVORG sy-vline 
WA_ISU_RATE_SEARCH_STR-FL_BELZART sy-vline 
WA_ISU_RATE_SEARCH_STR-FL_KONZIGR sy-vline 
WA_ISU_RATE_SEARCH_STR-FL_SAISON sy-vline 
WA_ISU_RATE_SEARCH_STR-FL_STTARIF sy-vline 
WA_ISU_RATE_SEARCH_STR-FL_TARIFNR sy-vline 
WA_ISU_RATE_SEARCH_STR-FL_PREISZUS sy-vline 
WA_ISU_RATE_SEARCH_STR-FL_GROSSGROUP sy-vline 
WA_ISU_RATE_SEARCH_STR-FL_LINE_CLASS sy-vline 
WA_ISU_RATE_SEARCH_STR-FL_LINESORT sy-vline 
WA_ISU_RATE_SEARCH_STR-FL_BACKGROUP sy-vline 
WA_ISU_RATE_SEARCH_STR-FL_TIMESLICEGEN sy-vline 
WA_ISU_RATE_SEARCH_STR-FL_DELOPERAND sy-vline 
WA_ISU_RATE_SEARCH_STR-FL_STGRQNT sy-vline 
WA_ISU_RATE_SEARCH_STR-FL_STGRAMT sy-vline 
WA_ISU_RATE_SEARCH_STR-STRING sy-vline 
WA_ISU_RATE_SEARCH_STR-FL_START sy-vline 
WA_ISU_RATE_SEARCH_STR-FL_CURSOR sy-vline 
WA_ISU_RATE_SEARCH_STR-FL_HITLIST sy-vline 
WA_ISU_RATE_SEARCH_STR-FL_CANCELED sy-vline 
WA_ISU_RATE_SEARCH_STR-FL_ADVCONTROL sy-vline      INTO ld_text SEPARATED BY SPACE.

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