ABAP Select data from SAP table CYPLAF into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CYPLAF
*  INTO TABLE @DATA(IT_CYPLAF2).
*--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_CYPLAF INDEX 1 INTO DATA(WA_CYPLAF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CYPLAF>-MANDT = 1.
<CYPLAF>-PLNUM = 1.
<CYPLAF>-MATNR = 1.
<CYPLAF>-PLWRK = 1.
<CYPLAF>-PWWRK = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CYPLAF-PAART, sy-vline,
  WA_CYPLAF-BESKZ, sy-vline,
  WA_CYPLAF-PSTTR, sy-vline,
  WA_CYPLAF-PEDTR, sy-vline,
  WA_CYPLAF-BEDID, sy-vline,
  WA_CYPLAF-AUFPL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CYPLAF 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_CYPLAF 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_CYPLAF INTO WA_CYPLAF.


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

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

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

*Conversion exit ABPSP, internal->external for field PSPEL
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_CYPLAF-PSPEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CYPLAF-PSPEL.
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_CYPLAF_STR, 
MANDT TYPE STRING,
PLNUM TYPE STRING,
MATNR TYPE STRING,
PLWRK TYPE STRING,
PWWRK TYPE STRING,
PAART TYPE STRING,
BESKZ TYPE STRING,
PSTTR TYPE STRING,
PEDTR TYPE STRING,
BEDID TYPE STRING,
AUFPL TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
PROJN TYPE STRING,
PALTR TYPE STRING,
GSMNG TYPE STRING,
RATID TYPE STRING,
GROID TYPE STRING,
AUFFX TYPE STRING,
PLSCN TYPE STRING,
DISPO TYPE STRING,
CY_SEQNR TYPE STRING,
PSPEL TYPE STRING,
KAPFX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CYPLAF_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_CYPLAF_STR-MANDT sy-vline 
WA_CYPLAF_STR-PLNUM sy-vline 
WA_CYPLAF_STR-MATNR sy-vline 
WA_CYPLAF_STR-PLWRK sy-vline 
WA_CYPLAF_STR-PWWRK sy-vline 
WA_CYPLAF_STR-PAART sy-vline 
WA_CYPLAF_STR-BESKZ sy-vline 
WA_CYPLAF_STR-PSTTR sy-vline 
WA_CYPLAF_STR-PEDTR sy-vline 
WA_CYPLAF_STR-BEDID sy-vline 
WA_CYPLAF_STR-AUFPL sy-vline 
WA_CYPLAF_STR-KDAUF sy-vline 
WA_CYPLAF_STR-KDPOS sy-vline 
WA_CYPLAF_STR-PROJN sy-vline 
WA_CYPLAF_STR-PALTR sy-vline 
WA_CYPLAF_STR-GSMNG sy-vline 
WA_CYPLAF_STR-RATID sy-vline 
WA_CYPLAF_STR-GROID sy-vline 
WA_CYPLAF_STR-AUFFX sy-vline 
WA_CYPLAF_STR-PLSCN sy-vline 
WA_CYPLAF_STR-DISPO sy-vline 
WA_CYPLAF_STR-CY_SEQNR sy-vline 
WA_CYPLAF_STR-PSPEL sy-vline 
WA_CYPLAF_STR-KAPFX sy-vline      INTO ld_text SEPARATED BY SPACE.

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