ABAP Select data from SAP table /SAPAPO/KOND_RULE into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPAPO/KOND_RULE
*  INTO TABLE @DATA(IT_/SAPAPO/KOND_RULE2).
*--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_/SAPAPO/KOND_RULE INDEX 1 INTO DATA(WA_/SAPAPO/KOND_RULE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPAPO/KOND_RULE>-RSSEQ = 1.
</SAPAPO/KOND_RULE>-STEP = 1.
</SAPAPO/KOND_RULE>-RSTYPE = 1.
</SAPAPO/KOND_RULE>-MANDT = 1.
</SAPAPO/KOND_RULE>-KNUMH = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPAPO/KOND_RULE-RUSCH, sy-vline,
  WA_/SAPAPO/KOND_RULE-KVEWE, sy-vline,
  WA_/SAPAPO/KOND_RULE-KAPPL, sy-vline,
  WA_/SAPAPO/KOND_RULE-KALSM, sy-vline,
  WA_/SAPAPO/KOND_RULE-STUNR, sy-vline,
  WA_/SAPAPO/KOND_RULE-ZAEHK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPAPO/KOND_RULE 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_/SAPAPO/KOND_RULE 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_/SAPAPO/KOND_RULE INTO WA_/SAPAPO/KOND_RULE.


*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 KOTAB, internal->external for field KOTABNR
CALL FUNCTION 'CONVERSION_EXIT_KOTAB_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/KOND_RULE-KOTABNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/KOND_RULE-KOTABNR.
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_/SAPAPO/KOND_RULE_STR, 
RSSEQ TYPE STRING,
STEP TYPE STRING,
RSTYPE TYPE STRING,
MANDT TYPE STRING,
KNUMH TYPE STRING,
RUSCH TYPE STRING,
KVEWE TYPE STRING,
KAPPL TYPE STRING,
KALSM TYPE STRING,
STUNR TYPE STRING,
ZAEHK TYPE STRING,
KSCHL TYPE STRING,
KOBED_SCH TYPE STRING,
KOZGF TYPE STRING,
KOLNR TYPE STRING,
KOTABNR TYPE STRING,
KOBED_ZGR TYPE STRING,
KKOPF TYPE STRING,
GZUGR TYPE STRING,
KOND_NUM TYPE STRING,
VORRC TYPE STRING,
KOND_DATA TYPE STRING,
NODE_KEY TYPE STRING,
FVALUE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPAPO/KOND_RULE_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_/SAPAPO/KOND_RULE_STR-RSSEQ sy-vline 
WA_/SAPAPO/KOND_RULE_STR-STEP sy-vline 
WA_/SAPAPO/KOND_RULE_STR-RSTYPE sy-vline 
WA_/SAPAPO/KOND_RULE_STR-MANDT sy-vline 
WA_/SAPAPO/KOND_RULE_STR-KNUMH sy-vline 
WA_/SAPAPO/KOND_RULE_STR-RUSCH sy-vline 
WA_/SAPAPO/KOND_RULE_STR-KVEWE sy-vline 
WA_/SAPAPO/KOND_RULE_STR-KAPPL sy-vline 
WA_/SAPAPO/KOND_RULE_STR-KALSM sy-vline 
WA_/SAPAPO/KOND_RULE_STR-STUNR sy-vline 
WA_/SAPAPO/KOND_RULE_STR-ZAEHK sy-vline 
WA_/SAPAPO/KOND_RULE_STR-KSCHL sy-vline 
WA_/SAPAPO/KOND_RULE_STR-KOBED_SCH sy-vline 
WA_/SAPAPO/KOND_RULE_STR-KOZGF sy-vline 
WA_/SAPAPO/KOND_RULE_STR-KOLNR sy-vline 
WA_/SAPAPO/KOND_RULE_STR-KOTABNR sy-vline 
WA_/SAPAPO/KOND_RULE_STR-KOBED_ZGR sy-vline 
WA_/SAPAPO/KOND_RULE_STR-KKOPF sy-vline 
WA_/SAPAPO/KOND_RULE_STR-GZUGR sy-vline 
WA_/SAPAPO/KOND_RULE_STR-KOND_NUM sy-vline 
WA_/SAPAPO/KOND_RULE_STR-VORRC sy-vline 
WA_/SAPAPO/KOND_RULE_STR-KOND_DATA sy-vline 
WA_/SAPAPO/KOND_RULE_STR-NODE_KEY sy-vline 
WA_/SAPAPO/KOND_RULE_STR-FVALUE sy-vline      INTO ld_text SEPARATED BY SPACE.

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