ABAP Select data from SAP table KGAL_CYC_SIMU_OUT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KGAL_CYC_SIMU_OUT
*  INTO TABLE @DATA(IT_KGAL_CYC_SIMU_OUT2).
*--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_KGAL_CYC_SIMU_OUT INDEX 1 INTO DATA(WA_KGAL_CYC_SIMU_OUT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KGAL_CYC_SIMU_OUT>-TAB = 1.
<KGAL_CYC_SIMU_OUT>-CYCLE = 1.
<KGAL_CYC_SIMU_OUT>-SDATE = 1.
<KGAL_CYC_SIMU_OUT>-GROUP = 1.
<KGAL_CYC_SIMU_OUT>-KOKRS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KGAL_CYC_SIMU_OUT-RLDNR, sy-vline,
  WA_KGAL_CYC_SIMU_OUT-ERKRS, sy-vline,
  WA_KGAL_CYC_SIMU_OUT-KSCYC, sy-vline,
  WA_KGAL_CYC_SIMU_OUT-GLCYC, sy-vline,
  WA_KGAL_CYC_SIMU_OUT-GJAHR, sy-vline,
  WA_KGAL_CYC_SIMU_OUT-SEQNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KGAL_CYC_SIMU_OUT 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_KGAL_CYC_SIMU_OUT 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_KGAL_CYC_SIMU_OUT INTO WA_KGAL_CYC_SIMU_OUT.


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

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_KGAL_CYC_SIMU_OUT-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KGAL_CYC_SIMU_OUT-GJAHR.
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_KGAL_CYC_SIMU_OUT_STR, 
TAB TYPE STRING,
CYCLE TYPE STRING,
SDATE TYPE STRING,
GROUP TYPE STRING,
KOKRS TYPE STRING,
RLDNR TYPE STRING,
ERKRS TYPE STRING,
KSCYC TYPE STRING,
GLCYC TYPE STRING,
GJAHR TYPE STRING,
SEQNR TYPE STRING,
NAME TYPE STRING,
ENAME TYPE STRING,
EDATE TYPE STRING,
ETIME TYPE STRING,
UNAME TYPE STRING,
PERAB TYPE STRING,
PERBI TYPE STRING,
TXT TYPE STRING,
CHOSEN TYPE STRING,
NODE_ID TYPE STRING,
MY_ID TYPE STRING,
RANK TYPE STRING,
FATHER TYPE STRING,
SHOW TYPE STRING,
SDATE_OUT TYPE STRING,
ACTION1 TYPE STRING,
ACTION2 TYPE STRING,
ID TYPE STRING,
IPKNZ TYPE STRING,
ALART TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KGAL_CYC_SIMU_OUT_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_KGAL_CYC_SIMU_OUT_STR-TAB sy-vline 
WA_KGAL_CYC_SIMU_OUT_STR-CYCLE sy-vline 
WA_KGAL_CYC_SIMU_OUT_STR-SDATE sy-vline 
WA_KGAL_CYC_SIMU_OUT_STR-GROUP sy-vline 
WA_KGAL_CYC_SIMU_OUT_STR-KOKRS sy-vline 
WA_KGAL_CYC_SIMU_OUT_STR-RLDNR sy-vline 
WA_KGAL_CYC_SIMU_OUT_STR-ERKRS sy-vline 
WA_KGAL_CYC_SIMU_OUT_STR-KSCYC sy-vline 
WA_KGAL_CYC_SIMU_OUT_STR-GLCYC sy-vline 
WA_KGAL_CYC_SIMU_OUT_STR-GJAHR sy-vline 
WA_KGAL_CYC_SIMU_OUT_STR-SEQNR sy-vline 
WA_KGAL_CYC_SIMU_OUT_STR-NAME sy-vline 
WA_KGAL_CYC_SIMU_OUT_STR-ENAME sy-vline 
WA_KGAL_CYC_SIMU_OUT_STR-EDATE sy-vline 
WA_KGAL_CYC_SIMU_OUT_STR-ETIME sy-vline 
WA_KGAL_CYC_SIMU_OUT_STR-UNAME sy-vline 
WA_KGAL_CYC_SIMU_OUT_STR-PERAB sy-vline 
WA_KGAL_CYC_SIMU_OUT_STR-PERBI sy-vline 
WA_KGAL_CYC_SIMU_OUT_STR-TXT sy-vline 
WA_KGAL_CYC_SIMU_OUT_STR-CHOSEN sy-vline 
WA_KGAL_CYC_SIMU_OUT_STR-NODE_ID sy-vline 
WA_KGAL_CYC_SIMU_OUT_STR-MY_ID sy-vline 
WA_KGAL_CYC_SIMU_OUT_STR-RANK sy-vline 
WA_KGAL_CYC_SIMU_OUT_STR-FATHER sy-vline 
WA_KGAL_CYC_SIMU_OUT_STR-SHOW sy-vline 
WA_KGAL_CYC_SIMU_OUT_STR-SDATE_OUT sy-vline 
WA_KGAL_CYC_SIMU_OUT_STR-ACTION1 sy-vline 
WA_KGAL_CYC_SIMU_OUT_STR-ACTION2 sy-vline 
WA_KGAL_CYC_SIMU_OUT_STR-ID sy-vline 
WA_KGAL_CYC_SIMU_OUT_STR-IPKNZ sy-vline 
WA_KGAL_CYC_SIMU_OUT_STR-ALART sy-vline      INTO ld_text SEPARATED BY SPACE.

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