ABAP Select data from SAP table EAMS_S_SP_MAINT_PACKAGE_DATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EAMS_S_SP_MAINT_PACKAGE_DATA
*  INTO TABLE @DATA(IT_EAMS_S_SP_MAINT_PACKAGE_DATA2).
*--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_EAMS_S_SP_MAINT_PACKAGE_DATA INDEX 1 INTO DATA(WA_EAMS_S_SP_MAINT_PACKAGE_DATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EAMS_S_SP_MAINT_PACKAGE_DATA>-EAMS_STRAT = 1.
<EAMS_S_SP_MAINT_PACKAGE_DATA>-EAMS_ZAEHL = 1.
<EAMS_S_SP_MAINT_PACKAGE_DATA>-MANDT = 1.
<EAMS_S_SP_MAINT_PACKAGE_DATA>-STRAT = 1.
<EAMS_S_SP_MAINT_PACKAGE_DATA>-ZAEHL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EAMS_S_SP_MAINT_PACKAGE_DATA-ZEIEH, sy-vline,
  WA_EAMS_S_SP_MAINT_PACKAGE_DATA-LEIEH, sy-vline,
  WA_EAMS_S_SP_MAINT_PACKAGE_DATA-ZYKZT, sy-vline,
  WA_EAMS_S_SP_MAINT_PACKAGE_DATA-ZYKLS, sy-vline,
  WA_EAMS_S_SP_MAINT_PACKAGE_DATA-OFFZT, sy-vline,
  WA_EAMS_S_SP_MAINT_PACKAGE_DATA-OFFLS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EAMS_S_SP_MAINT_PACKAGE_DATA 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_EAMS_S_SP_MAINT_PACKAGE_DATA 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_EAMS_S_SP_MAINT_PACKAGE_DATA INTO WA_EAMS_S_SP_MAINT_PACKAGE_DATA.


*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 CUNIT, internal->external for field ZEIEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_EAMS_S_SP_MAINT_PACKAGE_DATA-ZEIEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EAMS_S_SP_MAINT_PACKAGE_DATA-ZEIEH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field LEIEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_EAMS_S_SP_MAINT_PACKAGE_DATA-LEIEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EAMS_S_SP_MAINT_PACKAGE_DATA-LEIEH.
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_EAMS_S_SP_MAINT_PACKAGE_DATA_STR, 
EAMS_STRAT TYPE STRING,
EAMS_ZAEHL TYPE STRING,
MANDT TYPE STRING,
STRAT TYPE STRING,
ZAEHL TYPE STRING,
ZEIEH TYPE STRING,
LEIEH TYPE STRING,
ZYKZT TYPE STRING,
ZYKLS TYPE STRING,
OFFZT TYPE STRING,
OFFLS TYPE STRING,
HIERA TYPE STRING,
PUFFP TYPE STRING,
PUFFN TYPE STRING,
PERKN TYPE STRING,
EROEF TYPE STRING,
KTEX1 TYPE STRING,
KTEX2 TYPE STRING,
KTXHI TYPE STRING,
KZYK1 TYPE STRING,
KZYK2 TYPE STRING,
KOFF1 TYPE STRING,
KOFF2 TYPE STRING,
ZYKL1 TYPE STRING,
ZYKL2 TYPE STRING,
OFFS1 TYPE STRING,
OFFS2 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EAMS_S_SP_MAINT_PACKAGE_DATA_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_EAMS_S_SP_MAINT_PACKAGE_DATA_STR-EAMS_STRAT sy-vline 
WA_EAMS_S_SP_MAINT_PACKAGE_DATA_STR-EAMS_ZAEHL sy-vline 
WA_EAMS_S_SP_MAINT_PACKAGE_DATA_STR-MANDT sy-vline 
WA_EAMS_S_SP_MAINT_PACKAGE_DATA_STR-STRAT sy-vline 
WA_EAMS_S_SP_MAINT_PACKAGE_DATA_STR-ZAEHL sy-vline 
WA_EAMS_S_SP_MAINT_PACKAGE_DATA_STR-ZEIEH sy-vline 
WA_EAMS_S_SP_MAINT_PACKAGE_DATA_STR-LEIEH sy-vline 
WA_EAMS_S_SP_MAINT_PACKAGE_DATA_STR-ZYKZT sy-vline 
WA_EAMS_S_SP_MAINT_PACKAGE_DATA_STR-ZYKLS sy-vline 
WA_EAMS_S_SP_MAINT_PACKAGE_DATA_STR-OFFZT sy-vline 
WA_EAMS_S_SP_MAINT_PACKAGE_DATA_STR-OFFLS sy-vline 
WA_EAMS_S_SP_MAINT_PACKAGE_DATA_STR-HIERA sy-vline 
WA_EAMS_S_SP_MAINT_PACKAGE_DATA_STR-PUFFP sy-vline 
WA_EAMS_S_SP_MAINT_PACKAGE_DATA_STR-PUFFN sy-vline 
WA_EAMS_S_SP_MAINT_PACKAGE_DATA_STR-PERKN sy-vline 
WA_EAMS_S_SP_MAINT_PACKAGE_DATA_STR-EROEF sy-vline 
WA_EAMS_S_SP_MAINT_PACKAGE_DATA_STR-KTEX1 sy-vline 
WA_EAMS_S_SP_MAINT_PACKAGE_DATA_STR-KTEX2 sy-vline 
WA_EAMS_S_SP_MAINT_PACKAGE_DATA_STR-KTXHI sy-vline 
WA_EAMS_S_SP_MAINT_PACKAGE_DATA_STR-KZYK1 sy-vline 
WA_EAMS_S_SP_MAINT_PACKAGE_DATA_STR-KZYK2 sy-vline 
WA_EAMS_S_SP_MAINT_PACKAGE_DATA_STR-KOFF1 sy-vline 
WA_EAMS_S_SP_MAINT_PACKAGE_DATA_STR-KOFF2 sy-vline 
WA_EAMS_S_SP_MAINT_PACKAGE_DATA_STR-ZYKL1 sy-vline 
WA_EAMS_S_SP_MAINT_PACKAGE_DATA_STR-ZYKL2 sy-vline 
WA_EAMS_S_SP_MAINT_PACKAGE_DATA_STR-OFFS1 sy-vline 
WA_EAMS_S_SP_MAINT_PACKAGE_DATA_STR-OFFS2 sy-vline      INTO ld_text SEPARATED BY SPACE.

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