ABAP Select data from SAP table P1759_EXP into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P1759_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 P1759_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 P1759_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_P1759_EXP TYPE STANDARD TABLE OF P1759_EXP,
      WA_P1759_EXP TYPE P1759_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: <P1759_EXP> TYPE P1759_EXP.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P1759_EXP.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P1759_EXP
  INTO TABLE IT_P1759_EXP.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P1759_EXP
*  INTO TABLE @DATA(IT_P1759_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_P1759_EXP INDEX 1 INTO DATA(WA_P1759_EXP2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P1759_EXP ASSIGNING <P1759_EXP>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P1759_EXP>-MANDT = 1.
<P1759_EXP>-PLVAR = 1.
<P1759_EXP>-OTYPE = 1.
<P1759_EXP>-OBJID = 1.
<P1759_EXP>-INFTY = 1.

ENDLOOP.

LOOP AT IT_P1759_EXP INTO WA_P1759_EXP.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P1759_EXP-SUBTY, sy-vline,
  WA_P1759_EXP-ISTAT, sy-vline,
  WA_P1759_EXP-PRIOX, sy-vline,
  WA_P1759_EXP-BEGDA, sy-vline,
  WA_P1759_EXP-ENDDA, sy-vline,
  WA_P1759_EXP-VARYF, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P1759_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_P1759_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_P1759_EXP INTO WA_P1759_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 ALPHA, internal->external for field KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_P1759_EXP-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P1759_EXP-KOSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_P1759_EXP-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P1759_EXP-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field POSNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_P1759_EXP-POSNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P1759_EXP-POSNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PROFIT_CTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_P1759_EXP-PROFIT_CTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P1759_EXP-PROFIT_CTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GRANT_NBR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_P1759_EXP-GRANT_NBR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P1759_EXP-GRANT_NBR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SEGMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_P1759_EXP-SEGMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P1759_EXP-SEGMENT.
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_P1759_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,
DUMY TYPE STRING,
TABNR TYPE STRING,
TABSEQNR TYPE STRING,
BUKRS TYPE STRING,
GSBER TYPE STRING,
KORKS TYPE STRING,
KOSTL TYPE STRING,
AUFNR TYPE STRING,
POSNR TYPE STRING,
PROFIT_CTR TYPE STRING,
PROZT TYPE STRING,
FIKRS TYPE STRING,
FINCODE TYPE STRING,
FKBER TYPE STRING,
GRANT_NBR TYPE STRING,
FISTL TYPE STRING,
SEGMENT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P1759_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_P1759_EXP_STR-MANDT sy-vline 
WA_P1759_EXP_STR-PLVAR sy-vline 
WA_P1759_EXP_STR-OTYPE sy-vline 
WA_P1759_EXP_STR-OBJID sy-vline 
WA_P1759_EXP_STR-INFTY sy-vline 
WA_P1759_EXP_STR-SUBTY sy-vline 
WA_P1759_EXP_STR-ISTAT sy-vline 
WA_P1759_EXP_STR-PRIOX sy-vline 
WA_P1759_EXP_STR-BEGDA sy-vline 
WA_P1759_EXP_STR-ENDDA sy-vline 
WA_P1759_EXP_STR-VARYF sy-vline 
WA_P1759_EXP_STR-SEQNR sy-vline 
WA_P1759_EXP_STR-AEDTM sy-vline 
WA_P1759_EXP_STR-UNAME sy-vline 
WA_P1759_EXP_STR-REASN sy-vline 
WA_P1759_EXP_STR-HISTO sy-vline 
WA_P1759_EXP_STR-ITXNR sy-vline 
WA_P1759_EXP_STR-DUMY sy-vline 
WA_P1759_EXP_STR-TABNR sy-vline 
WA_P1759_EXP_STR-TABSEQNR sy-vline 
WA_P1759_EXP_STR-BUKRS sy-vline 
WA_P1759_EXP_STR-GSBER sy-vline 
WA_P1759_EXP_STR-KORKS sy-vline 
WA_P1759_EXP_STR-KOSTL sy-vline 
WA_P1759_EXP_STR-AUFNR sy-vline 
WA_P1759_EXP_STR-POSNR sy-vline 
WA_P1759_EXP_STR-PROFIT_CTR sy-vline 
WA_P1759_EXP_STR-PROZT sy-vline 
WA_P1759_EXP_STR-FIKRS sy-vline 
WA_P1759_EXP_STR-FINCODE sy-vline 
WA_P1759_EXP_STR-FKBER sy-vline 
WA_P1759_EXP_STR-GRANT_NBR sy-vline 
WA_P1759_EXP_STR-FISTL sy-vline 
WA_P1759_EXP_STR-SEGMENT sy-vline      INTO ld_text SEPARATED BY SPACE.

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