ABAP Select data from SAP table P22J_LAPH_ALV into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P22J_LAPH_ALV 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 P22J_LAPH_ALV. 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 P22J_LAPH_ALV 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_P22J_LAPH_ALV TYPE STANDARD TABLE OF P22J_LAPH_ALV,
      WA_P22J_LAPH_ALV TYPE P22J_LAPH_ALV,
      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: <P22J_LAPH_ALV> TYPE P22J_LAPH_ALV.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P22J_LAPH_ALV.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P22J_LAPH_ALV
  INTO TABLE IT_P22J_LAPH_ALV.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P22J_LAPH_ALV
*  INTO TABLE @DATA(IT_P22J_LAPH_ALV2).
*--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_P22J_LAPH_ALV INDEX 1 INTO DATA(WA_P22J_LAPH_ALV2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P22J_LAPH_ALV ASSIGNING <P22J_LAPH_ALV>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P22J_LAPH_ALV>-PERNR = 1.
<P22J_LAPH_ALV>-ENAME = 1.
<P22J_LAPH_ALV>-HIRED = 1.
<P22J_LAPH_ALV>-RAISD = 1.
<P22J_LAPH_ALV>-PERSG = 1.

ENDLOOP.

LOOP AT IT_P22J_LAPH_ALV INTO WA_P22J_LAPH_ALV.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P22J_LAPH_ALV-PERSG_TXT, sy-vline,
  WA_P22J_LAPH_ALV-PERSK, sy-vline,
  WA_P22J_LAPH_ALV-PERSK_TXT, sy-vline,
  WA_P22J_LAPH_ALV-PERSA, sy-vline,
  WA_P22J_LAPH_ALV-PERSA_TXT, sy-vline,
  WA_P22J_LAPH_ALV-BTRTL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P22J_LAPH_ALV 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_P22J_LAPH_ALV 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_P22J_LAPH_ALV INTO WA_P22J_LAPH_ALV.


*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_P22J_LAPH_ALV_STR, 
PERNR TYPE STRING,
ENAME TYPE STRING,
HIRED TYPE STRING,
RAISD TYPE STRING,
PERSG TYPE STRING,
PERSG_TXT TYPE STRING,
PERSK TYPE STRING,
PERSK_TXT TYPE STRING,
PERSA TYPE STRING,
PERSA_TXT TYPE STRING,
BTRTL TYPE STRING,
BTEXT TYPE STRING,
ORGEH TYPE STRING,
ORGTX TYPE STRING,
TRFAR TYPE STRING,
TARTX TYPE STRING,
TRFGB TYPE STRING,
TRFGB_TXT TYPE STRING,
TRFGR TYPE STRING,
TRFST TYPE STRING,
APPFT TYPE STRING,
APTXT TYPE STRING,
POINT01 TYPE STRING,
APRTF01 TYPE STRING,
POINT02 TYPE STRING,
APRTF02 TYPE STRING,
POINT03 TYPE STRING,
APRTF03 TYPE STRING,
POINT04 TYPE STRING,
APRTF04 TYPE STRING,
POINT05 TYPE STRING,
APRTF05 TYPE STRING,
POINT06 TYPE STRING,
APRTF06 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P22J_LAPH_ALV_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_P22J_LAPH_ALV_STR-PERNR sy-vline 
WA_P22J_LAPH_ALV_STR-ENAME sy-vline 
WA_P22J_LAPH_ALV_STR-HIRED sy-vline 
WA_P22J_LAPH_ALV_STR-RAISD sy-vline 
WA_P22J_LAPH_ALV_STR-PERSG sy-vline 
WA_P22J_LAPH_ALV_STR-PERSG_TXT sy-vline 
WA_P22J_LAPH_ALV_STR-PERSK sy-vline 
WA_P22J_LAPH_ALV_STR-PERSK_TXT sy-vline 
WA_P22J_LAPH_ALV_STR-PERSA sy-vline 
WA_P22J_LAPH_ALV_STR-PERSA_TXT sy-vline 
WA_P22J_LAPH_ALV_STR-BTRTL sy-vline 
WA_P22J_LAPH_ALV_STR-BTEXT sy-vline 
WA_P22J_LAPH_ALV_STR-ORGEH sy-vline 
WA_P22J_LAPH_ALV_STR-ORGTX sy-vline 
WA_P22J_LAPH_ALV_STR-TRFAR sy-vline 
WA_P22J_LAPH_ALV_STR-TARTX sy-vline 
WA_P22J_LAPH_ALV_STR-TRFGB sy-vline 
WA_P22J_LAPH_ALV_STR-TRFGB_TXT sy-vline 
WA_P22J_LAPH_ALV_STR-TRFGR sy-vline 
WA_P22J_LAPH_ALV_STR-TRFST sy-vline 
WA_P22J_LAPH_ALV_STR-APPFT sy-vline 
WA_P22J_LAPH_ALV_STR-APTXT sy-vline 
WA_P22J_LAPH_ALV_STR-POINT01 sy-vline 
WA_P22J_LAPH_ALV_STR-APRTF01 sy-vline 
WA_P22J_LAPH_ALV_STR-POINT02 sy-vline 
WA_P22J_LAPH_ALV_STR-APRTF02 sy-vline 
WA_P22J_LAPH_ALV_STR-POINT03 sy-vline 
WA_P22J_LAPH_ALV_STR-APRTF03 sy-vline 
WA_P22J_LAPH_ALV_STR-POINT04 sy-vline 
WA_P22J_LAPH_ALV_STR-APRTF04 sy-vline 
WA_P22J_LAPH_ALV_STR-POINT05 sy-vline 
WA_P22J_LAPH_ALV_STR-APRTF05 sy-vline 
WA_P22J_LAPH_ALV_STR-POINT06 sy-vline 
WA_P22J_LAPH_ALV_STR-APRTF06 sy-vline      INTO ld_text SEPARATED BY SPACE.

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