ABAP Select data from SAP table P02RPLIKAC2_ALV1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P02RPLIKAC2_ALV1 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 P02RPLIKAC2_ALV1. 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 P02RPLIKAC2_ALV1 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_P02RPLIKAC2_ALV1 TYPE STANDARD TABLE OF P02RPLIKAC2_ALV1,
      WA_P02RPLIKAC2_ALV1 TYPE P02RPLIKAC2_ALV1,
      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: <P02RPLIKAC2_ALV1> TYPE P02RPLIKAC2_ALV1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P02RPLIKAC2_ALV1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P02RPLIKAC2_ALV1
  INTO TABLE IT_P02RPLIKAC2_ALV1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P02RPLIKAC2_ALV1
*  INTO TABLE @DATA(IT_P02RPLIKAC2_ALV12).
*--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_P02RPLIKAC2_ALV1 INDEX 1 INTO DATA(WA_P02RPLIKAC2_ALV12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P02RPLIKAC2_ALV1 ASSIGNING <P02RPLIKAC2_ALV1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P02RPLIKAC2_ALV1>-SECTN = 1.
<P02RPLIKAC2_ALV1>-PNBEG = 1.
<P02RPLIKAC2_ALV1>-PNEND = 1.
<P02RPLIKAC2_ALV1>-CRDAT = 1.
<P02RPLIKAC2_ALV1>-BUKRS = 1.

ENDLOOP.

LOOP AT IT_P02RPLIKAC2_ALV1 INTO WA_P02RPLIKAC2_ALV1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P02RPLIKAC2_ALV1-AKNUM, sy-vline,
  WA_P02RPLIKAC2_ALV1-ABRNR, sy-vline,
  WA_P02RPLIKAC2_ALV1-PNID1, sy-vline,
  WA_P02RPLIKAC2_ALV1-PNID2, sy-vline,
  WA_P02RPLIKAC2_ALV1-HPERN, sy-vline,
  WA_P02RPLIKAC2_ALV1-PERNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P02RPLIKAC2_ALV1 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_P02RPLIKAC2_ALV1 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_P02RPLIKAC2_ALV1 INTO WA_P02RPLIKAC2_ALV1.


*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_P02RPLIKAC2_ALV1_STR, 
SECTN TYPE STRING,
PNBEG TYPE STRING,
PNEND TYPE STRING,
CRDAT TYPE STRING,
BUKRS TYPE STRING,
AKNUM TYPE STRING,
ABRNR TYPE STRING,
PNID1 TYPE STRING,
PNID2 TYPE STRING,
HPERN TYPE STRING,
PERNR TYPE STRING,
VERSN TYPE STRING,
NAMEV TYPE STRING,
GEBDA TYPE STRING,
GESCH TYPE STRING,
KANTO TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
AUSTR TYPE STRING,
AHVLO TYPE STRING,
AHVL2 TYPE STRING,
ALVLO TYPE STRING,
ALVL2 TYPE STRING,
AL2LO TYPE STRING,
AL2L2 TYPE STRING,
SWFAK TYPE STRING,
FAZUL TYPE STRING,
FAZU2 TYPE STRING,
RJAHR TYPE STRING,
LCOUN TYPE STRING,
SWNPA TYPE STRING,
WAERS TYPE STRING,
SWERR TYPE STRING,
TOTID TYPE STRING,
BEGDS TYPE STRING,
ENDDS TYPE STRING,
SWRPC TYPE STRING,
CSECT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P02RPLIKAC2_ALV1_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_P02RPLIKAC2_ALV1_STR-SECTN sy-vline 
WA_P02RPLIKAC2_ALV1_STR-PNBEG sy-vline 
WA_P02RPLIKAC2_ALV1_STR-PNEND sy-vline 
WA_P02RPLIKAC2_ALV1_STR-CRDAT sy-vline 
WA_P02RPLIKAC2_ALV1_STR-BUKRS sy-vline 
WA_P02RPLIKAC2_ALV1_STR-AKNUM sy-vline 
WA_P02RPLIKAC2_ALV1_STR-ABRNR sy-vline 
WA_P02RPLIKAC2_ALV1_STR-PNID1 sy-vline 
WA_P02RPLIKAC2_ALV1_STR-PNID2 sy-vline 
WA_P02RPLIKAC2_ALV1_STR-HPERN sy-vline 
WA_P02RPLIKAC2_ALV1_STR-PERNR sy-vline 
WA_P02RPLIKAC2_ALV1_STR-VERSN sy-vline 
WA_P02RPLIKAC2_ALV1_STR-NAMEV sy-vline 
WA_P02RPLIKAC2_ALV1_STR-GEBDA sy-vline 
WA_P02RPLIKAC2_ALV1_STR-GESCH sy-vline 
WA_P02RPLIKAC2_ALV1_STR-KANTO sy-vline 
WA_P02RPLIKAC2_ALV1_STR-BEGDA sy-vline 
WA_P02RPLIKAC2_ALV1_STR-ENDDA sy-vline 
WA_P02RPLIKAC2_ALV1_STR-AUSTR sy-vline 
WA_P02RPLIKAC2_ALV1_STR-AHVLO sy-vline 
WA_P02RPLIKAC2_ALV1_STR-AHVL2 sy-vline 
WA_P02RPLIKAC2_ALV1_STR-ALVLO sy-vline 
WA_P02RPLIKAC2_ALV1_STR-ALVL2 sy-vline 
WA_P02RPLIKAC2_ALV1_STR-AL2LO sy-vline 
WA_P02RPLIKAC2_ALV1_STR-AL2L2 sy-vline 
WA_P02RPLIKAC2_ALV1_STR-SWFAK sy-vline 
WA_P02RPLIKAC2_ALV1_STR-FAZUL sy-vline 
WA_P02RPLIKAC2_ALV1_STR-FAZU2 sy-vline 
WA_P02RPLIKAC2_ALV1_STR-RJAHR sy-vline 
WA_P02RPLIKAC2_ALV1_STR-LCOUN sy-vline 
WA_P02RPLIKAC2_ALV1_STR-SWNPA sy-vline 
WA_P02RPLIKAC2_ALV1_STR-WAERS sy-vline 
WA_P02RPLIKAC2_ALV1_STR-SWERR sy-vline 
WA_P02RPLIKAC2_ALV1_STR-TOTID sy-vline 
WA_P02RPLIKAC2_ALV1_STR-BEGDS sy-vline 
WA_P02RPLIKAC2_ALV1_STR-ENDDS sy-vline 
WA_P02RPLIKAC2_ALV1_STR-SWRPC sy-vline 
WA_P02RPLIKAC2_ALV1_STR-CSECT sy-vline      INTO ld_text SEPARATED BY SPACE.

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