ABAP Select data from SAP table P0940 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P0940 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 P0940. 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 P0940 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_P0940 TYPE STANDARD TABLE OF P0940,
      WA_P0940 TYPE P0940,
      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: <P0940> TYPE P0940.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P0940.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P0940
  INTO TABLE IT_P0940.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P0940
*  INTO TABLE @DATA(IT_P09402).
*--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_P0940 INDEX 1 INTO DATA(WA_P09402).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P0940 ASSIGNING <P0940>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P0940>-PERNR = 1.
<P0940>-INFTY = 1.
<P0940>-SUBTY = 1.
<P0940>-OBJPS = 1.
<P0940>-SPRPS = 1.

ENDLOOP.

LOOP AT IT_P0940 INTO WA_P0940.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P0940-ENDDA, sy-vline,
  WA_P0940-BEGDA, sy-vline,
  WA_P0940-SEQNR, sy-vline,
  WA_P0940-AEDTM, sy-vline,
  WA_P0940-UNAME, sy-vline,
  WA_P0940-HISTO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P0940 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_P0940 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_P0940 INTO WA_P0940.


*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_P0940_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,
FYEAR TYPE STRING,
DISAB TYPE STRING,
AMTBY TYPE STRING,
TXFCH TYPE STRING,
DISOC TYPE STRING,
DISCH TYPE STRING,
BLNCE TYPE STRING,
CURKY TYPE STRING,
WGT01 TYPE STRING,
AMP01 TYPE STRING,
AMU01 TYPE STRING,
WGT02 TYPE STRING,
AMP02 TYPE STRING,
AMU02 TYPE STRING,
WGT03 TYPE STRING,
AMP03 TYPE STRING,
AMU03 TYPE STRING,
WGT04 TYPE STRING,
AMP04 TYPE STRING,
AMU04 TYPE STRING,
WGT05 TYPE STRING,
AMP05 TYPE STRING,
AMU05 TYPE STRING,
WGT06 TYPE STRING,
AMP06 TYPE STRING,
AMU06 TYPE STRING,
WGT07 TYPE STRING,
AMP07 TYPE STRING,
AMU07 TYPE STRING,
WGT08 TYPE STRING,
AMP08 TYPE STRING,
AMU08 TYPE STRING,
WGT09 TYPE STRING,
AMP09 TYPE STRING,
AMU09 TYPE STRING,
WGT10 TYPE STRING,
AMP10 TYPE STRING,
AMU10 TYPE STRING,
WGT11 TYPE STRING,
AMP11 TYPE STRING,
AMU11 TYPE STRING,
WGT12 TYPE STRING,
AMP12 TYPE STRING,
AMU12 TYPE STRING,
WGT13 TYPE STRING,
AMP13 TYPE STRING,
AMU13 TYPE STRING,
WGT14 TYPE STRING,
AMP14 TYPE STRING,
AMU14 TYPE STRING,
WGT15 TYPE STRING,
AMP15 TYPE STRING,
AMU15 TYPE STRING,
WGT16 TYPE STRING,
AMP16 TYPE STRING,
AMU16 TYPE STRING,
WGT17 TYPE STRING,
AMP17 TYPE STRING,
AMU17 TYPE STRING,
WGT18 TYPE STRING,
AMP18 TYPE STRING,
AMU18 TYPE STRING,
WGT19 TYPE STRING,
AMP19 TYPE STRING,
AMU19 TYPE STRING,
WGT20 TYPE STRING,
AMP20 TYPE STRING,
AMU20 TYPE STRING,
INSAB TYPE STRING,
SAILI TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P0940_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_P0940_STR-PERNR sy-vline 
WA_P0940_STR-INFTY sy-vline 
WA_P0940_STR-SUBTY sy-vline 
WA_P0940_STR-OBJPS sy-vline 
WA_P0940_STR-SPRPS sy-vline 
WA_P0940_STR-ENDDA sy-vline 
WA_P0940_STR-BEGDA sy-vline 
WA_P0940_STR-SEQNR sy-vline 
WA_P0940_STR-AEDTM sy-vline 
WA_P0940_STR-UNAME sy-vline 
WA_P0940_STR-HISTO sy-vline 
WA_P0940_STR-ITXEX sy-vline 
WA_P0940_STR-REFEX sy-vline 
WA_P0940_STR-ORDEX sy-vline 
WA_P0940_STR-ITBLD sy-vline 
WA_P0940_STR-PREAS sy-vline 
WA_P0940_STR-FLAG1 sy-vline 
WA_P0940_STR-FLAG2 sy-vline 
WA_P0940_STR-FLAG3 sy-vline 
WA_P0940_STR-FLAG4 sy-vline 
WA_P0940_STR-RESE1 sy-vline 
WA_P0940_STR-RESE2 sy-vline 
WA_P0940_STR-GRPVL sy-vline 
WA_P0940_STR-FYEAR sy-vline 
WA_P0940_STR-DISAB sy-vline 
WA_P0940_STR-AMTBY sy-vline 
WA_P0940_STR-TXFCH sy-vline 
WA_P0940_STR-DISOC sy-vline 
WA_P0940_STR-DISCH sy-vline 
WA_P0940_STR-BLNCE sy-vline 
WA_P0940_STR-CURKY sy-vline 
WA_P0940_STR-WGT01 sy-vline 
WA_P0940_STR-AMP01 sy-vline 
WA_P0940_STR-AMU01 sy-vline 
WA_P0940_STR-WGT02 sy-vline 
WA_P0940_STR-AMP02 sy-vline 
WA_P0940_STR-AMU02 sy-vline 
WA_P0940_STR-WGT03 sy-vline 
WA_P0940_STR-AMP03 sy-vline 
WA_P0940_STR-AMU03 sy-vline 
WA_P0940_STR-WGT04 sy-vline 
WA_P0940_STR-AMP04 sy-vline 
WA_P0940_STR-AMU04 sy-vline 
WA_P0940_STR-WGT05 sy-vline 
WA_P0940_STR-AMP05 sy-vline 
WA_P0940_STR-AMU05 sy-vline 
WA_P0940_STR-WGT06 sy-vline 
WA_P0940_STR-AMP06 sy-vline 
WA_P0940_STR-AMU06 sy-vline 
WA_P0940_STR-WGT07 sy-vline 
WA_P0940_STR-AMP07 sy-vline 
WA_P0940_STR-AMU07 sy-vline 
WA_P0940_STR-WGT08 sy-vline 
WA_P0940_STR-AMP08 sy-vline 
WA_P0940_STR-AMU08 sy-vline 
WA_P0940_STR-WGT09 sy-vline 
WA_P0940_STR-AMP09 sy-vline 
WA_P0940_STR-AMU09 sy-vline 
WA_P0940_STR-WGT10 sy-vline 
WA_P0940_STR-AMP10 sy-vline 
WA_P0940_STR-AMU10 sy-vline 
WA_P0940_STR-WGT11 sy-vline 
WA_P0940_STR-AMP11 sy-vline 
WA_P0940_STR-AMU11 sy-vline 
WA_P0940_STR-WGT12 sy-vline 
WA_P0940_STR-AMP12 sy-vline 
WA_P0940_STR-AMU12 sy-vline 
WA_P0940_STR-WGT13 sy-vline 
WA_P0940_STR-AMP13 sy-vline 
WA_P0940_STR-AMU13 sy-vline 
WA_P0940_STR-WGT14 sy-vline 
WA_P0940_STR-AMP14 sy-vline 
WA_P0940_STR-AMU14 sy-vline 
WA_P0940_STR-WGT15 sy-vline 
WA_P0940_STR-AMP15 sy-vline 
WA_P0940_STR-AMU15 sy-vline 
WA_P0940_STR-WGT16 sy-vline 
WA_P0940_STR-AMP16 sy-vline 
WA_P0940_STR-AMU16 sy-vline 
WA_P0940_STR-WGT17 sy-vline 
WA_P0940_STR-AMP17 sy-vline 
WA_P0940_STR-AMU17 sy-vline 
WA_P0940_STR-WGT18 sy-vline 
WA_P0940_STR-AMP18 sy-vline 
WA_P0940_STR-AMU18 sy-vline 
WA_P0940_STR-WGT19 sy-vline 
WA_P0940_STR-AMP19 sy-vline 
WA_P0940_STR-AMU19 sy-vline 
WA_P0940_STR-WGT20 sy-vline 
WA_P0940_STR-AMP20 sy-vline 
WA_P0940_STR-AMU20 sy-vline 
WA_P0940_STR-INSAB sy-vline 
WA_P0940_STR-SAILI sy-vline      INTO ld_text SEPARATED BY SPACE.

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