ABAP Select data from SAP table P0888 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P0888 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 P0888. 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 P0888 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_P0888 TYPE STANDARD TABLE OF P0888,
      WA_P0888 TYPE P0888,
      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: <P0888> TYPE P0888.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P0888.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P0888
  INTO TABLE IT_P0888.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P0888
*  INTO TABLE @DATA(IT_P08882).
*--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_P0888 INDEX 1 INTO DATA(WA_P08882).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P0888 ASSIGNING <P0888>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P0888>-PERNR = 1.
<P0888>-INFTY = 1.
<P0888>-SUBTY = 1.
<P0888>-OBJPS = 1.
<P0888>-SPRPS = 1.

ENDLOOP.

LOOP AT IT_P0888 INTO WA_P0888.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P0888-ENDDA, sy-vline,
  WA_P0888-BEGDA, sy-vline,
  WA_P0888-SEQNR, sy-vline,
  WA_P0888-AEDTM, sy-vline,
  WA_P0888-UNAME, sy-vline,
  WA_P0888-HISTO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P0888 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_P0888 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_P0888 INTO WA_P0888.


*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_P0888_STR, 
PERNR TYPE STRING,
INFTY TYPE STRING,
SUBTY TYPE STRING,
OBJPS TYPE STRING,
SPRPS TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
SEQNR TYPE STRING,
AEDTM TYPE STRING,
UNAME TYPE STRING,
HISTO TYPE STRING,
ITXEX TYPE STRING,
REFEX TYPE STRING,
ORDEX TYPE STRING,
ITBLD TYPE STRING,
PREAS TYPE STRING,
FLAG1 TYPE STRING,
FLAG2 TYPE STRING,
FLAG3 TYPE STRING,
FLAG4 TYPE STRING,
RESE1 TYPE STRING,
RESE2 TYPE STRING,
GRPVL TYPE STRING,
RET_BEN_PLN TYPE STRING,
RET_BEN_PLN_TYP TYPE STRING,
PART_STAT TYPE STRING,
ENRL_STAT TYPE STRING,
PS_CHG_RSN TYPE STRING,
COM_STA_DTE TYPE STRING,
EXC_YR TYPE STRING,
EXC_MON TYPE STRING,
RET_PEN_AST TYPE STRING,
PART_NUM TYPE STRING,
ACC_NUM TYPE STRING,
CTRB_STAT_ER TYPE STRING,
CTRB_STAT_PART TYPE STRING,
BS_PAYT_AMT TYPE STRING,
ER_PREM_AMT TYPE STRING,
PP_MON_ALLW TYPE STRING,
PP_SHOYO_AMT TYPE STRING,
MON_IND TYPE STRING,
PART_PREM_AMT TYPE STRING,
WAERS TYPE STRING,
ER_CS_IND TYPE STRING,
PART_CS_IND TYPE STRING,
CTRB_SUSP_RSN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P0888_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_P0888_STR-PERNR sy-vline 
WA_P0888_STR-INFTY sy-vline 
WA_P0888_STR-SUBTY sy-vline 
WA_P0888_STR-OBJPS sy-vline 
WA_P0888_STR-SPRPS sy-vline 
WA_P0888_STR-ENDDA sy-vline 
WA_P0888_STR-BEGDA sy-vline 
WA_P0888_STR-SEQNR sy-vline 
WA_P0888_STR-AEDTM sy-vline 
WA_P0888_STR-UNAME sy-vline 
WA_P0888_STR-HISTO sy-vline 
WA_P0888_STR-ITXEX sy-vline 
WA_P0888_STR-REFEX sy-vline 
WA_P0888_STR-ORDEX sy-vline 
WA_P0888_STR-ITBLD sy-vline 
WA_P0888_STR-PREAS sy-vline 
WA_P0888_STR-FLAG1 sy-vline 
WA_P0888_STR-FLAG2 sy-vline 
WA_P0888_STR-FLAG3 sy-vline 
WA_P0888_STR-FLAG4 sy-vline 
WA_P0888_STR-RESE1 sy-vline 
WA_P0888_STR-RESE2 sy-vline 
WA_P0888_STR-GRPVL sy-vline 
WA_P0888_STR-RET_BEN_PLN sy-vline 
WA_P0888_STR-RET_BEN_PLN_TYP sy-vline 
WA_P0888_STR-PART_STAT sy-vline 
WA_P0888_STR-ENRL_STAT sy-vline 
WA_P0888_STR-PS_CHG_RSN sy-vline 
WA_P0888_STR-COM_STA_DTE sy-vline 
WA_P0888_STR-EXC_YR sy-vline 
WA_P0888_STR-EXC_MON sy-vline 
WA_P0888_STR-RET_PEN_AST sy-vline 
WA_P0888_STR-PART_NUM sy-vline 
WA_P0888_STR-ACC_NUM sy-vline 
WA_P0888_STR-CTRB_STAT_ER sy-vline 
WA_P0888_STR-CTRB_STAT_PART sy-vline 
WA_P0888_STR-BS_PAYT_AMT sy-vline 
WA_P0888_STR-ER_PREM_AMT sy-vline 
WA_P0888_STR-PP_MON_ALLW sy-vline 
WA_P0888_STR-PP_SHOYO_AMT sy-vline 
WA_P0888_STR-MON_IND sy-vline 
WA_P0888_STR-PART_PREM_AMT sy-vline 
WA_P0888_STR-WAERS sy-vline 
WA_P0888_STR-ER_CS_IND sy-vline 
WA_P0888_STR-PART_CS_IND sy-vline 
WA_P0888_STR-CTRB_SUSP_RSN sy-vline      INTO ld_text SEPARATED BY SPACE.

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