ABAP Select data from SAP table P7431_EXP into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P7431_EXP 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 P7431_EXP. 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 P7431_EXP 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_P7431_EXP TYPE STANDARD TABLE OF P7431_EXP,
      WA_P7431_EXP TYPE P7431_EXP,
      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: <P7431_EXP> TYPE P7431_EXP.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P7431_EXP.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P7431_EXP
  INTO TABLE IT_P7431_EXP.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P7431_EXP
*  INTO TABLE @DATA(IT_P7431_EXP2).
*--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_P7431_EXP INDEX 1 INTO DATA(WA_P7431_EXP2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P7431_EXP ASSIGNING <P7431_EXP>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P7431_EXP>-MANDT = 1.
<P7431_EXP>-PLVAR = 1.
<P7431_EXP>-OTYPE = 1.
<P7431_EXP>-OBJID = 1.
<P7431_EXP>-INFTY = 1.

ENDLOOP.

LOOP AT IT_P7431_EXP INTO WA_P7431_EXP.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P7431_EXP-SUBTY, sy-vline,
  WA_P7431_EXP-ISTAT, sy-vline,
  WA_P7431_EXP-PRIOX, sy-vline,
  WA_P7431_EXP-BEGDA, sy-vline,
  WA_P7431_EXP-ENDDA, sy-vline,
  WA_P7431_EXP-VARYF, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P7431_EXP 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_P7431_EXP 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_P7431_EXP INTO WA_P7431_EXP.


*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.

*Conversion exit ISOLA, internal->external for field LANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_P7431_EXP-LANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P7431_EXP-LANGUAGE.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_P7431_EXP_STR, 
MANDT TYPE STRING,
PLVAR TYPE STRING,
OTYPE TYPE STRING,
OBJID TYPE STRING,
INFTY TYPE STRING,
SUBTY TYPE STRING,
ISTAT TYPE STRING,
PRIOX TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
VARYF TYPE STRING,
SEQNR TYPE STRING,
AEDTM TYPE STRING,
UNAME TYPE STRING,
REASN TYPE STRING,
HISTO TYPE STRING,
ITXNR TYPE STRING,
STATUS TYPE STRING,
CATEGORY TYPE STRING,
MON_SR_CONFIG_ID TYPE STRING,
DEADLINE_DATE TYPE STRING,
LANGUAGE TYPE STRING,
DESCRIPTION TYPE STRING,
GRID_CONFIG_ID TYPE STRING,
RM_LEVEL TYPE STRING,
TYPE TYPE STRING,
LOG_HANDLE TYPE STRING,
TABNR TYPE STRING,
TABSEQNR TYPE STRING,
REF_OBJ_OTYPE TYPE STRING,
REF_OBJ_OBJID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P7431_EXP_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_P7431_EXP_STR-MANDT sy-vline 
WA_P7431_EXP_STR-PLVAR sy-vline 
WA_P7431_EXP_STR-OTYPE sy-vline 
WA_P7431_EXP_STR-OBJID sy-vline 
WA_P7431_EXP_STR-INFTY sy-vline 
WA_P7431_EXP_STR-SUBTY sy-vline 
WA_P7431_EXP_STR-ISTAT sy-vline 
WA_P7431_EXP_STR-PRIOX sy-vline 
WA_P7431_EXP_STR-BEGDA sy-vline 
WA_P7431_EXP_STR-ENDDA sy-vline 
WA_P7431_EXP_STR-VARYF sy-vline 
WA_P7431_EXP_STR-SEQNR sy-vline 
WA_P7431_EXP_STR-AEDTM sy-vline 
WA_P7431_EXP_STR-UNAME sy-vline 
WA_P7431_EXP_STR-REASN sy-vline 
WA_P7431_EXP_STR-HISTO sy-vline 
WA_P7431_EXP_STR-ITXNR sy-vline 
WA_P7431_EXP_STR-STATUS sy-vline 
WA_P7431_EXP_STR-CATEGORY sy-vline 
WA_P7431_EXP_STR-MON_SR_CONFIG_ID sy-vline 
WA_P7431_EXP_STR-DEADLINE_DATE sy-vline 
WA_P7431_EXP_STR-LANGUAGE sy-vline 
WA_P7431_EXP_STR-DESCRIPTION sy-vline 
WA_P7431_EXP_STR-GRID_CONFIG_ID sy-vline 
WA_P7431_EXP_STR-RM_LEVEL sy-vline 
WA_P7431_EXP_STR-TYPE sy-vline 
WA_P7431_EXP_STR-LOG_HANDLE sy-vline 
WA_P7431_EXP_STR-TABNR sy-vline 
WA_P7431_EXP_STR-TABSEQNR sy-vline 
WA_P7431_EXP_STR-REF_OBJ_OTYPE sy-vline 
WA_P7431_EXP_STR-REF_OBJ_OBJID sy-vline      INTO ld_text SEPARATED BY SPACE.

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