ABAP Select data from SAP table PAAANCMPSUP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PAAANCMPSUP
*  INTO TABLE @DATA(IT_PAAANCMPSUP2).
*--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_PAAANCMPSUP INDEX 1 INTO DATA(WA_PAAANCMPSUP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PAAANCMPSUP>-MANDT = 1.
<PAAANCMPSUP>-CHMLCMPLNCINFOUUID = 1.
<PAAANCMPSUP>-CHMLCOMPOSITIONINPROCESSUUID = 1.
<PAAANCMPSUP>-CHMLCMPSTNINPROCSTATUS = 1.
<PAAANCMPSUP>-CHMLCMPSTNINPROCISACTIVEENTITY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PAAANCMPSUP-CHMLCOMPOSITIONRELEASEDUUID, sy-vline,
  WA_PAAANCMPSUP-CHMLCMPSTNRELDSTATUS, sy-vline,
  WA_PAAANCMPSUP-RELEASEDBYUSER, sy-vline,
  WA_PAAANCMPSUP-CHMLCMPSTNRELDISACTIVEENTITY, sy-vline,
  WA_PAAANCMPSUP-CHMLCOMPOSITIONTYPE, sy-vline,
  WA_PAAANCMPSUP-CHMLCMPSTNNAVGNLINKUUID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PAAANCMPSUP 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_PAAANCMPSUP 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_PAAANCMPSUP INTO WA_PAAANCMPSUP.


*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_PAAANCMPSUP_STR, 
MANDT TYPE STRING,
CHMLCMPLNCINFOUUID TYPE STRING,
CHMLCOMPOSITIONINPROCESSUUID TYPE STRING,
CHMLCMPSTNINPROCSTATUS TYPE STRING,
CHMLCMPSTNINPROCISACTIVEENTITY TYPE STRING,
CHMLCOMPOSITIONRELEASEDUUID TYPE STRING,
CHMLCMPSTNRELDSTATUS TYPE STRING,
RELEASEDBYUSER TYPE STRING,
CHMLCMPSTNRELDISACTIVEENTITY TYPE STRING,
CHMLCOMPOSITIONTYPE TYPE STRING,
CHMLCMPSTNNAVGNLINKUUID TYPE STRING,
CHMLCMPSTNISACTIVE TYPE STRING,
CHMLCMPLNCINFOTYPE TYPE STRING,
MATERIALISSOLD TYPE STRING,
MATERIALISTRANSPORTED TYPE STRING,
MATERIALISPRODUCED TYPE STRING,
MATERIALISSOURCED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PAAANCMPSUP_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_PAAANCMPSUP_STR-MANDT sy-vline 
WA_PAAANCMPSUP_STR-CHMLCMPLNCINFOUUID sy-vline 
WA_PAAANCMPSUP_STR-CHMLCOMPOSITIONINPROCESSUUID sy-vline 
WA_PAAANCMPSUP_STR-CHMLCMPSTNINPROCSTATUS sy-vline 
WA_PAAANCMPSUP_STR-CHMLCMPSTNINPROCISACTIVEENTITY sy-vline 
WA_PAAANCMPSUP_STR-CHMLCOMPOSITIONRELEASEDUUID sy-vline 
WA_PAAANCMPSUP_STR-CHMLCMPSTNRELDSTATUS sy-vline 
WA_PAAANCMPSUP_STR-RELEASEDBYUSER sy-vline 
WA_PAAANCMPSUP_STR-CHMLCMPSTNRELDISACTIVEENTITY sy-vline 
WA_PAAANCMPSUP_STR-CHMLCOMPOSITIONTYPE sy-vline 
WA_PAAANCMPSUP_STR-CHMLCMPSTNNAVGNLINKUUID sy-vline 
WA_PAAANCMPSUP_STR-CHMLCMPSTNISACTIVE sy-vline 
WA_PAAANCMPSUP_STR-CHMLCMPLNCINFOTYPE sy-vline 
WA_PAAANCMPSUP_STR-MATERIALISSOLD sy-vline 
WA_PAAANCMPSUP_STR-MATERIALISTRANSPORTED sy-vline 
WA_PAAANCMPSUP_STR-MATERIALISPRODUCED sy-vline 
WA_PAAANCMPSUP_STR-MATERIALISSOURCED sy-vline      INTO ld_text SEPARATED BY SPACE.

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