ABAP Select data from SAP table MIG_CMDS_EI_LOADING_ADDR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MIG_CMDS_EI_LOADING_ADDR
*  INTO TABLE @DATA(IT_MIG_CMDS_EI_LOADING_ADDR2).
*--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_MIG_CMDS_EI_LOADING_ADDR INDEX 1 INTO DATA(WA_MIG_CMDS_EI_LOADING_ADDR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MIG_CMDS_EI_LOADING_ADDR>-EXTADDRESSNUMBERKEY = 1.
<MIG_CMDS_EI_LOADING_ADDR>-ABLADKEY = 1.
<MIG_CMDS_EI_LOADING_ADDR>-KNFAKDAT = 1.
<MIG_CMDS_EI_LOADING_ADDR>-WANIDDAT = 1.
<MIG_CMDS_EI_LOADING_ADDR>-MOAB1DAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MIG_CMDS_EI_LOADING_ADDR-MOBI1DAT, sy-vline,
  WA_MIG_CMDS_EI_LOADING_ADDR-MOAB2DAT, sy-vline,
  WA_MIG_CMDS_EI_LOADING_ADDR-MOBI2DAT, sy-vline,
  WA_MIG_CMDS_EI_LOADING_ADDR-DIAB1DAT, sy-vline,
  WA_MIG_CMDS_EI_LOADING_ADDR-DIBI1DAT, sy-vline,
  WA_MIG_CMDS_EI_LOADING_ADDR-DIAB2DAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MIG_CMDS_EI_LOADING_ADDR 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_MIG_CMDS_EI_LOADING_ADDR 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_MIG_CMDS_EI_LOADING_ADDR INTO WA_MIG_CMDS_EI_LOADING_ADDR.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_MIG_CMDS_EI_LOADING_ADDR_STR, 
EXTADDRESSNUMBERKEY TYPE STRING,
ABLADKEY TYPE STRING,
KNFAKDAT TYPE STRING,
WANIDDAT TYPE STRING,
MOAB1DAT TYPE STRING,
MOBI1DAT TYPE STRING,
MOAB2DAT TYPE STRING,
MOBI2DAT TYPE STRING,
DIAB1DAT TYPE STRING,
DIBI1DAT TYPE STRING,
DIAB2DAT TYPE STRING,
DIBI2DAT TYPE STRING,
MIAB1DAT TYPE STRING,
MIBI1DAT TYPE STRING,
MIAB2DAT TYPE STRING,
MIBI2DAT TYPE STRING,
DOAB1DAT TYPE STRING,
DOBI1DAT TYPE STRING,
DOAB2DAT TYPE STRING,
DOBI2DAT TYPE STRING,
FRAB1DAT TYPE STRING,
FRBI1DAT TYPE STRING,
FRAB2DAT TYPE STRING,
FRBI2DAT TYPE STRING,
SAAB1DAT TYPE STRING,
SABI1DAT TYPE STRING,
SAAB2DAT TYPE STRING,
SABI2DAT TYPE STRING,
SOAB1DAT TYPE STRING,
SOBI1DAT TYPE STRING,
SOAB2DAT TYPE STRING,
SOBI2DAT TYPE STRING,
DEFABDAT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MIG_CMDS_EI_LOADING_ADDR_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_MIG_CMDS_EI_LOADING_ADDR_STR-EXTADDRESSNUMBERKEY sy-vline 
WA_MIG_CMDS_EI_LOADING_ADDR_STR-ABLADKEY sy-vline 
WA_MIG_CMDS_EI_LOADING_ADDR_STR-KNFAKDAT sy-vline 
WA_MIG_CMDS_EI_LOADING_ADDR_STR-WANIDDAT sy-vline 
WA_MIG_CMDS_EI_LOADING_ADDR_STR-MOAB1DAT sy-vline 
WA_MIG_CMDS_EI_LOADING_ADDR_STR-MOBI1DAT sy-vline 
WA_MIG_CMDS_EI_LOADING_ADDR_STR-MOAB2DAT sy-vline 
WA_MIG_CMDS_EI_LOADING_ADDR_STR-MOBI2DAT sy-vline 
WA_MIG_CMDS_EI_LOADING_ADDR_STR-DIAB1DAT sy-vline 
WA_MIG_CMDS_EI_LOADING_ADDR_STR-DIBI1DAT sy-vline 
WA_MIG_CMDS_EI_LOADING_ADDR_STR-DIAB2DAT sy-vline 
WA_MIG_CMDS_EI_LOADING_ADDR_STR-DIBI2DAT sy-vline 
WA_MIG_CMDS_EI_LOADING_ADDR_STR-MIAB1DAT sy-vline 
WA_MIG_CMDS_EI_LOADING_ADDR_STR-MIBI1DAT sy-vline 
WA_MIG_CMDS_EI_LOADING_ADDR_STR-MIAB2DAT sy-vline 
WA_MIG_CMDS_EI_LOADING_ADDR_STR-MIBI2DAT sy-vline 
WA_MIG_CMDS_EI_LOADING_ADDR_STR-DOAB1DAT sy-vline 
WA_MIG_CMDS_EI_LOADING_ADDR_STR-DOBI1DAT sy-vline 
WA_MIG_CMDS_EI_LOADING_ADDR_STR-DOAB2DAT sy-vline 
WA_MIG_CMDS_EI_LOADING_ADDR_STR-DOBI2DAT sy-vline 
WA_MIG_CMDS_EI_LOADING_ADDR_STR-FRAB1DAT sy-vline 
WA_MIG_CMDS_EI_LOADING_ADDR_STR-FRBI1DAT sy-vline 
WA_MIG_CMDS_EI_LOADING_ADDR_STR-FRAB2DAT sy-vline 
WA_MIG_CMDS_EI_LOADING_ADDR_STR-FRBI2DAT sy-vline 
WA_MIG_CMDS_EI_LOADING_ADDR_STR-SAAB1DAT sy-vline 
WA_MIG_CMDS_EI_LOADING_ADDR_STR-SABI1DAT sy-vline 
WA_MIG_CMDS_EI_LOADING_ADDR_STR-SAAB2DAT sy-vline 
WA_MIG_CMDS_EI_LOADING_ADDR_STR-SABI2DAT sy-vline 
WA_MIG_CMDS_EI_LOADING_ADDR_STR-SOAB1DAT sy-vline 
WA_MIG_CMDS_EI_LOADING_ADDR_STR-SOBI1DAT sy-vline 
WA_MIG_CMDS_EI_LOADING_ADDR_STR-SOAB2DAT sy-vline 
WA_MIG_CMDS_EI_LOADING_ADDR_STR-SOBI2DAT sy-vline 
WA_MIG_CMDS_EI_LOADING_ADDR_STR-DEFABDAT sy-vline      INTO ld_text SEPARATED BY SPACE.

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