ABAP Select data from SAP table /MDG/_S_0G_ES_TRANSTYPE into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /MDG/_S_0G_ES_TRANSTYPE 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 /MDG/_S_0G_ES_TRANSTYPE. 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 /MDG/_S_0G_ES_TRANSTYPE 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_/MDG/_S_0G_ES_TRANSTYPE TYPE STANDARD TABLE OF /MDG/_S_0G_ES_TRANSTYPE,
      WA_/MDG/_S_0G_ES_TRANSTYPE TYPE /MDG/_S_0G_ES_TRANSTYPE,
      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: </MDG/_S_0G_ES_TRANSTYPE> TYPE /MDG/_S_0G_ES_TRANSTYPE.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/MDG/_S_0G_ES_TRANSTYPE.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /MDG/_S_0G_ES_TRANSTYPE
  INTO TABLE IT_/MDG/_S_0G_ES_TRANSTYPE.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /MDG/_S_0G_ES_TRANSTYPE
*  INTO TABLE @DATA(IT_/MDG/_S_0G_ES_TRANSTYPE2).
*--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_/MDG/_S_0G_ES_TRANSTYPE INDEX 1 INTO DATA(WA_/MDG/_S_0G_ES_TRANSTYPE2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/MDG/_S_0G_ES_TRANSTYPE ASSIGNING </MDG/_S_0G_ES_TRANSTYPE>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</MDG/_S_0G_ES_TRANSTYPE>-USMD_ACTIVE = 1.
</MDG/_S_0G_ES_TRANSTYPE>-USMD_EDITION = 1.
</MDG/_S_0G_ES_TRANSTYPE>-USMD_VDATE_FROM = 1.
</MDG/_S_0G_ES_TRANSTYPE>-USMD_VDATE_TO = 1.
</MDG/_S_0G_ES_TRANSTYPE>-USMD_VPER_FROM = 1.

ENDLOOP.

LOOP AT IT_/MDG/_S_0G_ES_TRANSTYPE INTO WA_/MDG/_S_0G_ES_TRANSTYPE.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/MDG/_S_0G_ES_TRANSTYPE-USMD_VPER_TO, sy-vline,
  WA_/MDG/_S_0G_ES_TRANSTYPE-USMD_EDITION_TO, sy-vline,
  WA_/MDG/_S_0G_ES_TRANSTYPE-SEARCH_RANK, sy-vline,
  WA_/MDG/_S_0G_ES_TRANSTYPE-TRANSTYPE, sy-vline,
  WA_/MDG/_S_0G_ES_TRANSTYPE-TRANSTYPC, sy-vline,
  WA_/MDG/_S_0G_ES_TRANSTYPE-TRANSTYPD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/MDG/_S_0G_ES_TRANSTYPE 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_/MDG/_S_0G_ES_TRANSTYPE 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_/MDG/_S_0G_ES_TRANSTYPE INTO WA_/MDG/_S_0G_ES_TRANSTYPE.


*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 USMD_EDITION
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/MDG/_S_0G_ES_TRANSTYPE-USMD_EDITION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/MDG/_S_0G_ES_TRANSTYPE-USMD_EDITION.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI7, internal->external for field USMD_VPER_FROM
CALL FUNCTION 'CONVERSION_EXIT_PERI7_OUTPUT'
  EXPORTING
    input =                      WA_/MDG/_S_0G_ES_TRANSTYPE-USMD_VPER_FROM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/MDG/_S_0G_ES_TRANSTYPE-USMD_VPER_FROM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI7, internal->external for field USMD_VPER_TO
CALL FUNCTION 'CONVERSION_EXIT_PERI7_OUTPUT'
  EXPORTING
    input =                      WA_/MDG/_S_0G_ES_TRANSTYPE-USMD_VPER_TO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/MDG/_S_0G_ES_TRANSTYPE-USMD_VPER_TO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field USMD_EDITION_TO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/MDG/_S_0G_ES_TRANSTYPE-USMD_EDITION_TO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/MDG/_S_0G_ES_TRANSTYPE-USMD_EDITION_TO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TRANSTYPE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/MDG/_S_0G_ES_TRANSTYPE-TRANSTYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/MDG/_S_0G_ES_TRANSTYPE-TRANSTYPE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TRANSTYPC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/MDG/_S_0G_ES_TRANSTYPE-TRANSTYPC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/MDG/_S_0G_ES_TRANSTYPE-TRANSTYPC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TRANSTYPD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/MDG/_S_0G_ES_TRANSTYPE-TRANSTYPD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/MDG/_S_0G_ES_TRANSTYPE-TRANSTYPD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TRANSTYPF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/MDG/_S_0G_ES_TRANSTYPE-TRANSTYPF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/MDG/_S_0G_ES_TRANSTYPE-TRANSTYPF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field USMD_ENT_CHNG_AT
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_/MDG/_S_0G_ES_TRANSTYPE-USMD_ENT_CHNG_AT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/MDG/_S_0G_ES_TRANSTYPE-USMD_ENT_CHNG_AT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field USMD_ENT_CRTD_AT
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_/MDG/_S_0G_ES_TRANSTYPE-USMD_ENT_CRTD_AT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/MDG/_S_0G_ES_TRANSTYPE-USMD_ENT_CRTD_AT.
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_/MDG/_S_0G_ES_TRANSTYPE_STR, 
USMD_ACTIVE TYPE STRING,
USMD_EDITION TYPE STRING,
USMD_VDATE_FROM TYPE STRING,
USMD_VDATE_TO TYPE STRING,
USMD_VPER_FROM TYPE STRING,
USMD_VPER_TO TYPE STRING,
USMD_EDITION_TO TYPE STRING,
SEARCH_RANK TYPE STRING,
TRANSTYPE TYPE STRING,
TRANSTYPC TYPE STRING,
TRANSTYPD TYPE STRING,
TRANSTYPF TYPE STRING,
TTYPBLCK TYPE STRING,
TTYPSIGN TYPE STRING,
TXTLG TYPE STRING,
TXTMI TYPE STRING,
TXTSH TYPE STRING,
USMD_ENT_CHNG_AT TYPE STRING,
USMD_ENT_CHNG_BY TYPE STRING,
USMD_ENT_CRTD_AT TYPE STRING,
USMD_ENT_CRTD_BY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/MDG/_S_0G_ES_TRANSTYPE_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_/MDG/_S_0G_ES_TRANSTYPE_STR-USMD_ACTIVE sy-vline 
WA_/MDG/_S_0G_ES_TRANSTYPE_STR-USMD_EDITION sy-vline 
WA_/MDG/_S_0G_ES_TRANSTYPE_STR-USMD_VDATE_FROM sy-vline 
WA_/MDG/_S_0G_ES_TRANSTYPE_STR-USMD_VDATE_TO sy-vline 
WA_/MDG/_S_0G_ES_TRANSTYPE_STR-USMD_VPER_FROM sy-vline 
WA_/MDG/_S_0G_ES_TRANSTYPE_STR-USMD_VPER_TO sy-vline 
WA_/MDG/_S_0G_ES_TRANSTYPE_STR-USMD_EDITION_TO sy-vline 
WA_/MDG/_S_0G_ES_TRANSTYPE_STR-SEARCH_RANK sy-vline 
WA_/MDG/_S_0G_ES_TRANSTYPE_STR-TRANSTYPE sy-vline 
WA_/MDG/_S_0G_ES_TRANSTYPE_STR-TRANSTYPC sy-vline 
WA_/MDG/_S_0G_ES_TRANSTYPE_STR-TRANSTYPD sy-vline 
WA_/MDG/_S_0G_ES_TRANSTYPE_STR-TRANSTYPF sy-vline 
WA_/MDG/_S_0G_ES_TRANSTYPE_STR-TTYPBLCK sy-vline 
WA_/MDG/_S_0G_ES_TRANSTYPE_STR-TTYPSIGN sy-vline 
WA_/MDG/_S_0G_ES_TRANSTYPE_STR-TXTLG sy-vline 
WA_/MDG/_S_0G_ES_TRANSTYPE_STR-TXTMI sy-vline 
WA_/MDG/_S_0G_ES_TRANSTYPE_STR-TXTSH sy-vline 
WA_/MDG/_S_0G_ES_TRANSTYPE_STR-USMD_ENT_CHNG_AT sy-vline 
WA_/MDG/_S_0G_ES_TRANSTYPE_STR-USMD_ENT_CHNG_BY sy-vline 
WA_/MDG/_S_0G_ES_TRANSTYPE_STR-USMD_ENT_CRTD_AT sy-vline 
WA_/MDG/_S_0G_ES_TRANSTYPE_STR-USMD_ENT_CRTD_BY sy-vline      INTO ld_text SEPARATED BY SPACE.

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