ABAP Select data from SAP table PCCE_CONTEXT_REFERENCES into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PCCE_CONTEXT_REFERENCES
*  INTO TABLE @DATA(IT_PCCE_CONTEXT_REFERENCES2).
*--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_PCCE_CONTEXT_REFERENCES INDEX 1 INTO DATA(WA_PCCE_CONTEXT_REFERENCES2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PCCE_CONTEXT_REFERENCES>-PERNR = 1.
<PCCE_CONTEXT_REFERENCES>-RESULT_PERAS = 1.
<PCCE_CONTEXT_REFERENCES>-VERSION = 1.
<PCCE_CONTEXT_REFERENCES>-VERSC = 1.
<PCCE_CONTEXT_REFERENCES>-WPBP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PCCE_CONTEXT_REFERENCES-ABC, sy-vline,
  WA_PCCE_CONTEXT_REFERENCES-RT, sy-vline,
  WA_PCCE_CONTEXT_REFERENCES-CRT, sy-vline,
  WA_PCCE_CONTEXT_REFERENCES-BT, sy-vline,
  WA_PCCE_CONTEXT_REFERENCES-C0, sy-vline,
  WA_PCCE_CONTEXT_REFERENCES-VCP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PCCE_CONTEXT_REFERENCES 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_PCCE_CONTEXT_REFERENCES 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_PCCE_CONTEXT_REFERENCES INTO WA_PCCE_CONTEXT_REFERENCES.


*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_PCCE_CONTEXT_REFERENCES_STR, 
PERNR TYPE STRING,
RESULT_PERAS TYPE STRING,
VERSION TYPE STRING,
VERSC TYPE STRING,
WPBP TYPE STRING,
ABC TYPE STRING,
RT TYPE STRING,
CRT TYPE STRING,
BT TYPE STRING,
C0 TYPE STRING,
VCP TYPE STRING,
ALP TYPE STRING,
DFT TYPE STRING,
GRT TYPE STRING,
LS TYPE STRING,
STATUS TYPE STRING,
ARRRS TYPE STRING,
DDNTK TYPE STRING,
ACCR TYPE STRING,
BENTAB TYPE STRING,
AB TYPE STRING,
FUND TYPE STRING,
AVERAGE TYPE STRING,
C1 TYPE STRING,
V0 TYPE STRING,
CODIST TYPE STRING,
LIDI TYPE STRING,
LIFL TYPE STRING,
INTERNAL_PERAS TYPE STRING,
ABENTAB TYPE STRING,
AIT TYPE STRING,
ALLAP TYPE STRING,
AOA TYPE STRING,
AV0 TYPE STRING,
APER TYPE STRING,
ART TYPE STRING,
CABC TYPE STRING,
DATUMSANGABE TYPE STRING,
DT TYPE STRING,
IT TYPE STRING,
LRT TYPE STRING,
MODIF TYPE STRING,
CODIST TYPE STRING,
MV TYPE STRING,
NEW_RGDIR TYPE STRING,
OCRT TYPE STRING,
ORT TYPE STRING,
PSP TYPE STRING,
PT TYPE STRING,
PURL_ALL TYPE STRING,
RGDIR TYPE STRING,
SUBSTITUTIONS TYPE STRING,
UIT TYPE STRING,
URT TYPE STRING,
VORT TYPE STRING,
VAR TYPE STRING,
ZIT TYPE STRING,
ZL TYPE STRING,
GLVAR TYPE STRING,
GL_SW TYPE STRING,
LIDO TYPE STRING,
HEADER TYPE STRING,
WPBP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PCCE_CONTEXT_REFERENCES_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_PCCE_CONTEXT_REFERENCES_STR-PERNR sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-RESULT_PERAS sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-VERSION sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-VERSC sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-WPBP sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-ABC sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-RT sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-CRT sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-BT sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-C0 sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-VCP sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-ALP sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-DFT sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-GRT sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-LS sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-STATUS sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-ARRRS sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-DDNTK sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-ACCR sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-BENTAB sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-AB sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-FUND sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-AVERAGE sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-C1 sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-V0 sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-CODIST sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-LIDI sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-LIFL sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-INTERNAL_PERAS sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-ABENTAB sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-AIT sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-ALLAP sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-AOA sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-AV0 sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-APER sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-ART sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-CABC sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-DATUMSANGABE sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-DT sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-IT sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-LRT sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-MODIF sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-CODIST sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-MV sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-NEW_RGDIR sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-OCRT sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-ORT sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-PSP sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-PT sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-PURL_ALL sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-RGDIR sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-SUBSTITUTIONS sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-UIT sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-URT sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-VORT sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-VAR sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-ZIT sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-ZL sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-GLVAR sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-GL_SW sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-LIDO sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-HEADER sy-vline 
WA_PCCE_CONTEXT_REFERENCES_STR-WPBP sy-vline      INTO ld_text SEPARATED BY SPACE.

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