ABAP Select data from SAP table CYDGLEG into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CYDGLEG 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 CYDGLEG. 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 CYDGLEG 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_CYDGLEG TYPE STANDARD TABLE OF CYDGLEG,
      WA_CYDGLEG TYPE CYDGLEG,
      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: <CYDGLEG> TYPE CYDGLEG.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CYDGLEG
*  INTO TABLE @DATA(IT_CYDGLEG2).
*--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_CYDGLEG INDEX 1 INTO DATA(WA_CYDGLEG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CYDGLEG>-ARBPL = 1.
<CYDGLEG>-ARBPLTEXT = 1.
<CYDGLEG>-KAPAR = 1.
<CYDGLEG>-KAPARTEXT = 1.
<CYDGLEG>-PERIOD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CYDGLEG-LIEINHA, sy-vline,
  WA_CYDGLEG-ANGEB, sy-vline,
  WA_CYDGLEG-MATNR, sy-vline,
  WA_CYDGLEG-MATTEXT, sy-vline,
  WA_CYDGLEG-AUART, sy-vline,
  WA_CYDGLEG-AUFNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CYDGLEG 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_CYDGLEG 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_CYDGLEG INTO WA_CYDGLEG.


*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 CUNIT, internal->external for field LIEINHA
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CYDGLEG-LIEINHA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CYDGLEG-LIEINHA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_CYDGLEG-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CYDGLEG-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CYDGLEG-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CYDGLEG-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field VORNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_CYDGLEG-VORNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CYDGLEG-VORNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field LIEINH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CYDGLEG-LIEINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CYDGLEG-LIEINH.
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_CYDGLEG_STR, 
ARBPL TYPE STRING,
ARBPLTEXT TYPE STRING,
KAPAR TYPE STRING,
KAPARTEXT TYPE STRING,
PERIOD TYPE STRING,
LIEINHA TYPE STRING,
ANGEB TYPE STRING,
MATNR TYPE STRING,
MATTEXT TYPE STRING,
AUART TYPE STRING,
AUFNR TYPE STRING,
APRIO TYPE STRING,
KTEXT TYPE STRING,
DYAUFT TYPE STRING,
DYVRG TYPE STRING,
VORNR TYPE STRING,
BEDARF TYPE STRING,
LIEINH TYPE STRING,
BELAST TYPE STRING,
BELEINH TYPE STRING,
DYSUM TYPE STRING,
SUMBED TYPE STRING,
SUMBEL TYPE STRING,
DYBED TYPE STRING,
DYBEL TYPE STRING,
SUMBELEINH TYPE STRING,
SUMLIEINHA TYPE STRING,
ANGEINH TYPE STRING,
LAGE TYPE STRING,
TERM TYPE STRING,
ABSCHNITT TYPE STRING,
BDATUM TYPE STRING,
EDATUM TYPE STRING,
BUZEIT TYPE STRING,
EUZEIT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CYDGLEG_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_CYDGLEG_STR-ARBPL sy-vline 
WA_CYDGLEG_STR-ARBPLTEXT sy-vline 
WA_CYDGLEG_STR-KAPAR sy-vline 
WA_CYDGLEG_STR-KAPARTEXT sy-vline 
WA_CYDGLEG_STR-PERIOD sy-vline 
WA_CYDGLEG_STR-LIEINHA sy-vline 
WA_CYDGLEG_STR-ANGEB sy-vline 
WA_CYDGLEG_STR-MATNR sy-vline 
WA_CYDGLEG_STR-MATTEXT sy-vline 
WA_CYDGLEG_STR-AUART sy-vline 
WA_CYDGLEG_STR-AUFNR sy-vline 
WA_CYDGLEG_STR-APRIO sy-vline 
WA_CYDGLEG_STR-KTEXT sy-vline 
WA_CYDGLEG_STR-DYAUFT sy-vline 
WA_CYDGLEG_STR-DYVRG sy-vline 
WA_CYDGLEG_STR-VORNR sy-vline 
WA_CYDGLEG_STR-BEDARF sy-vline 
WA_CYDGLEG_STR-LIEINH sy-vline 
WA_CYDGLEG_STR-BELAST sy-vline 
WA_CYDGLEG_STR-BELEINH sy-vline 
WA_CYDGLEG_STR-DYSUM sy-vline 
WA_CYDGLEG_STR-SUMBED sy-vline 
WA_CYDGLEG_STR-SUMBEL sy-vline 
WA_CYDGLEG_STR-DYBED sy-vline 
WA_CYDGLEG_STR-DYBEL sy-vline 
WA_CYDGLEG_STR-SUMBELEINH sy-vline 
WA_CYDGLEG_STR-SUMLIEINHA sy-vline 
WA_CYDGLEG_STR-ANGEINH sy-vline 
WA_CYDGLEG_STR-LAGE sy-vline 
WA_CYDGLEG_STR-TERM sy-vline 
WA_CYDGLEG_STR-ABSCHNITT sy-vline 
WA_CYDGLEG_STR-BDATUM sy-vline 
WA_CYDGLEG_STR-EDATUM sy-vline 
WA_CYDGLEG_STR-BUZEIT sy-vline 
WA_CYDGLEG_STR-EUZEIT sy-vline      INTO ld_text SEPARATED BY SPACE.

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