ABAP Select data from SAP table EWASCONTAINERASSGN_INFO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EWASCONTAINERASSGN_INFO
*  INTO TABLE @DATA(IT_EWASCONTAINERASSGN_INFO2).
*--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_EWASCONTAINERASSGN_INFO INDEX 1 INTO DATA(WA_EWASCONTAINERASSGN_INFO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EWASCONTAINERASSGN_INFO>-SERVLOC = 1.
<EWASCONTAINERASSGN_INFO>-EQUNR = 1.
<EWASCONTAINERASSGN_INFO>-LOGIKNR = 1.
<EWASCONTAINERASSGN_INFO>-SERNR = 1.
<EWASCONTAINERASSGN_INFO>-CONTSHARE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EWASCONTAINERASSGN_INFO-BIS, sy-vline,
  WA_EWASCONTAINERASSGN_INFO-TIMTO, sy-vline,
  WA_EWASCONTAINERASSGN_INFO-AB, sy-vline,
  WA_EWASCONTAINERASSGN_INFO-TIMFR, sy-vline,
  WA_EWASCONTAINERASSGN_INFO-OBJECTADDRESS, sy-vline,
  WA_EWASCONTAINERASSGN_INFO-SERVICEADDRESS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EWASCONTAINERASSGN_INFO 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_EWASCONTAINERASSGN_INFO 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_EWASCONTAINERASSGN_INFO INTO WA_EWASCONTAINERASSGN_INFO.


*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 TPLNR, internal->external for field SERVLOC
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_EWASCONTAINERASSGN_INFO-SERVLOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWASCONTAINERASSGN_INFO-SERVLOC.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit GERNR, internal->external for field SERNR
CALL FUNCTION 'CONVERSION_EXIT_GERNR_OUTPUT'
  EXPORTING
    input =                      WA_EWASCONTAINERASSGN_INFO-SERNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWASCONTAINERASSGN_INFO-SERNR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit MATN1, internal->external for field BEH_TYPE
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_EWASCONTAINERASSGN_INFO-BEH_TYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWASCONTAINERASSGN_INFO-BEH_TYPE.
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_EWASCONTAINERASSGN_INFO_STR, 
SERVLOC TYPE STRING,
EQUNR TYPE STRING,
LOGIKNR TYPE STRING,
SERNR TYPE STRING,
CONTSHARE TYPE STRING,
BIS TYPE STRING,
TIMTO TYPE STRING,
AB TYPE STRING,
TIMFR TYPE STRING,
OBJECTADDRESS TYPE STRING,
SERVICEADDRESS TYPE STRING,
ADDRESSLINE_OA TYPE STRING,
ADDRESSLINE_SA TYPE STRING,
BEH_TYPE TYPE STRING,
EIGENTUM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EWASCONTAINERASSGN_INFO_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_EWASCONTAINERASSGN_INFO_STR-SERVLOC sy-vline 
WA_EWASCONTAINERASSGN_INFO_STR-EQUNR sy-vline 
WA_EWASCONTAINERASSGN_INFO_STR-LOGIKNR sy-vline 
WA_EWASCONTAINERASSGN_INFO_STR-SERNR sy-vline 
WA_EWASCONTAINERASSGN_INFO_STR-CONTSHARE sy-vline 
WA_EWASCONTAINERASSGN_INFO_STR-BIS sy-vline 
WA_EWASCONTAINERASSGN_INFO_STR-TIMTO sy-vline 
WA_EWASCONTAINERASSGN_INFO_STR-AB sy-vline 
WA_EWASCONTAINERASSGN_INFO_STR-TIMFR sy-vline 
WA_EWASCONTAINERASSGN_INFO_STR-OBJECTADDRESS sy-vline 
WA_EWASCONTAINERASSGN_INFO_STR-SERVICEADDRESS sy-vline 
WA_EWASCONTAINERASSGN_INFO_STR-ADDRESSLINE_OA sy-vline 
WA_EWASCONTAINERASSGN_INFO_STR-ADDRESSLINE_SA sy-vline 
WA_EWASCONTAINERASSGN_INFO_STR-BEH_TYPE sy-vline 
WA_EWASCONTAINERASSGN_INFO_STR-EIGENTUM sy-vline      INTO ld_text SEPARATED BY SPACE.

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