ABAP Select data from SAP table ENT5391 into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP ENT5391 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 ENT5391. 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 ENT5391 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_ENT5391 TYPE STANDARD TABLE OF ENT5391,
      WA_ENT5391 TYPE ENT5391,
      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: <ENT5391> TYPE ENT5391.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ENT5391.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ENT5391
  INTO TABLE IT_ENT5391.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ENT5391
*  INTO TABLE @DATA(IT_ENT53912).
*--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_ENT5391 INDEX 1 INTO DATA(WA_ENT53912).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ENT5391 ASSIGNING <ENT5391>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ENT5391>-MANDT = 1.
<ENT5391>-LGNUM = 1.
<ENT5391>-TANUM = 1.
<ENT5391>-BWART = 1.
<ENT5391>-BWLVS = 1.

ENDLOOP.

LOOP AT IT_ENT5391 INTO WA_ENT5391.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ENT5391-TBPRI, sy-vline,
  WA_ENT5391-TRART, sy-vline,
  WA_ENT5391-BDATU, sy-vline,
  WA_ENT5391-BZEIT, sy-vline,
  WA_ENT5391-BNAME, sy-vline,
  WA_ENT5391-REFNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ENT5391 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_ENT5391 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_ENT5391 INTO WA_ENT5391.


*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 REFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ENT5391-REFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT5391-REFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ENT5391-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT5391-VBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MBLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ENT5391-MBLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT5391-MBLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field MJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_ENT5391-MJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT5391-MJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BENUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ENT5391-BENUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT5391-BENUM.
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_ENT5391_STR, 
MANDT TYPE STRING,
LGNUM TYPE STRING,
TANUM TYPE STRING,
BWART TYPE STRING,
BWLVS TYPE STRING,
TBPRI TYPE STRING,
TRART TYPE STRING,
BDATU TYPE STRING,
BZEIT TYPE STRING,
BNAME TYPE STRING,
REFNR TYPE STRING,
TBNUM TYPE STRING,
UBNUM TYPE STRING,
VBELN TYPE STRING,
KQUIT TYPE STRING,
QDATU TYPE STRING,
MBLNR TYPE STRING,
MJAHR TYPE STRING,
BETYP TYPE STRING,
BENUM TYPE STRING,
DRUKZ TYPE STRING,
DRUCK TYPE STRING,
TEILK TYPE STRING,
KR2SO TYPE STRING,
KR2KU TYPE STRING,
KDISO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ENT5391_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_ENT5391_STR-MANDT sy-vline 
WA_ENT5391_STR-LGNUM sy-vline 
WA_ENT5391_STR-TANUM sy-vline 
WA_ENT5391_STR-BWART sy-vline 
WA_ENT5391_STR-BWLVS sy-vline 
WA_ENT5391_STR-TBPRI sy-vline 
WA_ENT5391_STR-TRART sy-vline 
WA_ENT5391_STR-BDATU sy-vline 
WA_ENT5391_STR-BZEIT sy-vline 
WA_ENT5391_STR-BNAME sy-vline 
WA_ENT5391_STR-REFNR sy-vline 
WA_ENT5391_STR-TBNUM sy-vline 
WA_ENT5391_STR-UBNUM sy-vline 
WA_ENT5391_STR-VBELN sy-vline 
WA_ENT5391_STR-KQUIT sy-vline 
WA_ENT5391_STR-QDATU sy-vline 
WA_ENT5391_STR-MBLNR sy-vline 
WA_ENT5391_STR-MJAHR sy-vline 
WA_ENT5391_STR-BETYP sy-vline 
WA_ENT5391_STR-BENUM sy-vline 
WA_ENT5391_STR-DRUKZ sy-vline 
WA_ENT5391_STR-DRUCK sy-vline 
WA_ENT5391_STR-TEILK sy-vline 
WA_ENT5391_STR-KR2SO sy-vline 
WA_ENT5391_STR-KR2KU sy-vline 
WA_ENT5391_STR-KDISO sy-vline      INTO ld_text SEPARATED BY SPACE.

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