ABAP Select data from SAP table ENT5778 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ENT5778 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 ENT5778. 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 ENT5778 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_ENT5778 TYPE STANDARD TABLE OF ENT5778,
      WA_ENT5778 TYPE ENT5778,
      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: <ENT5778> TYPE ENT5778.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ENT5778.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ENT5778
  INTO TABLE IT_ENT5778.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ENT5778
*  INTO TABLE @DATA(IT_ENT57782).
*--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_ENT5778 INDEX 1 INTO DATA(WA_ENT57782).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ENT5778 ASSIGNING <ENT5778>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ENT5778>-MANDT = 1.
<ENT5778>-PLNTY = 1.
<ENT5778>-PLNNR = 1.
<ENT5778>-PLNKN = 1.
<ENT5778>-ZAEHL = 1.

ENDLOOP.

LOOP AT IT_ENT5778 INTO WA_ENT5778.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ENT5778-DATUV, sy-vline,
  WA_ENT5778-TECHV, sy-vline,
  WA_ENT5778-LOEKZ, sy-vline,
  WA_ENT5778-PARKZ, sy-vline,
  WA_ENT5778-ANDAT, sy-vline,
  WA_ENT5778-ANNAM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ENT5778 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_ENT5778 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_ENT5778 INTO WA_ENT5778.


*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 PLNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ENT5778-PLNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT5778-PLNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VPLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ENT5778-VPLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT5778-VPLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VPLAL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ENT5778-VPLAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT5778-VPLAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VPLFL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ENT5778-VPLFL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENT5778-VPLFL.
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_ENT5778_STR, 
MANDT TYPE STRING,
PLNTY TYPE STRING,
PLNNR TYPE STRING,
PLNKN TYPE STRING,
ZAEHL TYPE STRING,
DATUV TYPE STRING,
TECHV TYPE STRING,
LOEKZ TYPE STRING,
PARKZ TYPE STRING,
ANDAT TYPE STRING,
ANNAM TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
VPLTY TYPE STRING,
VPLNR TYPE STRING,
VPLAL TYPE STRING,
VPLFL TYPE STRING,
VINTV TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ENT5778_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_ENT5778_STR-MANDT sy-vline 
WA_ENT5778_STR-PLNTY sy-vline 
WA_ENT5778_STR-PLNNR sy-vline 
WA_ENT5778_STR-PLNKN sy-vline 
WA_ENT5778_STR-ZAEHL sy-vline 
WA_ENT5778_STR-DATUV sy-vline 
WA_ENT5778_STR-TECHV sy-vline 
WA_ENT5778_STR-LOEKZ sy-vline 
WA_ENT5778_STR-PARKZ sy-vline 
WA_ENT5778_STR-ANDAT sy-vline 
WA_ENT5778_STR-ANNAM sy-vline 
WA_ENT5778_STR-AEDAT sy-vline 
WA_ENT5778_STR-AENAM sy-vline 
WA_ENT5778_STR-VPLTY sy-vline 
WA_ENT5778_STR-VPLNR sy-vline 
WA_ENT5778_STR-VPLAL sy-vline 
WA_ENT5778_STR-VPLFL sy-vline 
WA_ENT5778_STR-VINTV sy-vline      INTO ld_text SEPARATED BY SPACE.

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