ABAP Select data from SAP table P15_COCO_GC into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P15_COCO_GC 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 P15_COCO_GC. 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 P15_COCO_GC 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_P15_COCO_GC TYPE STANDARD TABLE OF P15_COCO_GC,
      WA_P15_COCO_GC TYPE P15_COCO_GC,
      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: <P15_COCO_GC> TYPE P15_COCO_GC.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P15_COCO_GC.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P15_COCO_GC
  INTO TABLE IT_P15_COCO_GC.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P15_COCO_GC
*  INTO TABLE @DATA(IT_P15_COCO_GC2).
*--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_P15_COCO_GC INDEX 1 INTO DATA(WA_P15_COCO_GC2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P15_COCO_GC ASSIGNING <P15_COCO_GC>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P15_COCO_GC>-RECORD = 1.
<P15_COCO_GC>-TAXCOMM = 1.
<P15_COCO_GC>-ANNO = 1.
<P15_COCO_GC>-TAXCOLL = 1.
<P15_COCO_GC>-MONTH1 = 1.

ENDLOOP.

LOOP AT IT_P15_COCO_GC INTO WA_P15_COCO_GC.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P15_COCO_GC-TAXB1, sy-vline,
  WA_P15_COCO_GC-TAXR1, sy-vline,
  WA_P15_COCO_GC-CONT1, sy-vline,
  WA_P15_COCO_GC-CODE11, sy-vline,
  WA_P15_COCO_GC-AMT11, sy-vline,
  WA_P15_COCO_GC-CODE12, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P15_COCO_GC 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_P15_COCO_GC 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_P15_COCO_GC INTO WA_P15_COCO_GC.


*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_P15_COCO_GC_STR, 
RECORD TYPE STRING,
TAXCOMM TYPE STRING,
ANNO TYPE STRING,
TAXCOLL TYPE STRING,
MONTH1 TYPE STRING,
TAXB1 TYPE STRING,
TAXR1 TYPE STRING,
CONT1 TYPE STRING,
CODE11 TYPE STRING,
AMT11 TYPE STRING,
CODE12 TYPE STRING,
AMT12 TYPE STRING,
CODE13 TYPE STRING,
AMT13 TYPE STRING,
BEGDA1 TYPE STRING,
ENDDA1 TYPE STRING,
CODALTR1 TYPE STRING,
RESV1 TYPE STRING,
MONTH2 TYPE STRING,
TAXB2 TYPE STRING,
TAXR2 TYPE STRING,
CONT2 TYPE STRING,
CODE21 TYPE STRING,
AMT21 TYPE STRING,
CODE22 TYPE STRING,
AMT22 TYPE STRING,
CODE23 TYPE STRING,
AMT23 TYPE STRING,
BEGDA2 TYPE STRING,
ENDDA2 TYPE STRING,
CODALTR2 TYPE STRING,
RESV2 TYPE STRING,
FILL TYPE STRING,
RESV TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P15_COCO_GC_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_P15_COCO_GC_STR-RECORD sy-vline 
WA_P15_COCO_GC_STR-TAXCOMM sy-vline 
WA_P15_COCO_GC_STR-ANNO sy-vline 
WA_P15_COCO_GC_STR-TAXCOLL sy-vline 
WA_P15_COCO_GC_STR-MONTH1 sy-vline 
WA_P15_COCO_GC_STR-TAXB1 sy-vline 
WA_P15_COCO_GC_STR-TAXR1 sy-vline 
WA_P15_COCO_GC_STR-CONT1 sy-vline 
WA_P15_COCO_GC_STR-CODE11 sy-vline 
WA_P15_COCO_GC_STR-AMT11 sy-vline 
WA_P15_COCO_GC_STR-CODE12 sy-vline 
WA_P15_COCO_GC_STR-AMT12 sy-vline 
WA_P15_COCO_GC_STR-CODE13 sy-vline 
WA_P15_COCO_GC_STR-AMT13 sy-vline 
WA_P15_COCO_GC_STR-BEGDA1 sy-vline 
WA_P15_COCO_GC_STR-ENDDA1 sy-vline 
WA_P15_COCO_GC_STR-CODALTR1 sy-vline 
WA_P15_COCO_GC_STR-RESV1 sy-vline 
WA_P15_COCO_GC_STR-MONTH2 sy-vline 
WA_P15_COCO_GC_STR-TAXB2 sy-vline 
WA_P15_COCO_GC_STR-TAXR2 sy-vline 
WA_P15_COCO_GC_STR-CONT2 sy-vline 
WA_P15_COCO_GC_STR-CODE21 sy-vline 
WA_P15_COCO_GC_STR-AMT21 sy-vline 
WA_P15_COCO_GC_STR-CODE22 sy-vline 
WA_P15_COCO_GC_STR-AMT22 sy-vline 
WA_P15_COCO_GC_STR-CODE23 sy-vline 
WA_P15_COCO_GC_STR-AMT23 sy-vline 
WA_P15_COCO_GC_STR-BEGDA2 sy-vline 
WA_P15_COCO_GC_STR-ENDDA2 sy-vline 
WA_P15_COCO_GC_STR-CODALTR2 sy-vline 
WA_P15_COCO_GC_STR-RESV2 sy-vline 
WA_P15_COCO_GC_STR-FILL sy-vline 
WA_P15_COCO_GC_STR-RESV sy-vline      INTO ld_text SEPARATED BY SPACE.

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