ABAP Select data from SAP table ISU_DM_MR_STREET_S_MR_UNIT_D into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISU_DM_MR_STREET_S_MR_UNIT_D
*  INTO TABLE @DATA(IT_ISU_DM_MR_STREET_S_MR_UNIT_D2).
*--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_ISU_DM_MR_STREET_S_MR_UNIT_D INDEX 1 INTO DATA(WA_ISU_DM_MR_STREET_S_MR_UNIT_D2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISU_DM_MR_STREET_S_MR_UNIT_D>-WA_MR_UNIT_D = 1.
<ISU_DM_MR_STREET_S_MR_UNIT_D>-MANDT = 1.
<ISU_DM_MR_STREET_S_MR_UNIT_D>-TERMSCHL = 1.
<ISU_DM_MR_STREET_S_MR_UNIT_D>-TERMTEXT = 1.
<ISU_DM_MR_STREET_S_MR_UNIT_D>-PERIODEW = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISU_DM_MR_STREET_S_MR_UNIT_D-PERIODET, sy-vline,
  WA_ISU_DM_MR_STREET_S_MR_UNIT_D-EPER_ABL, sy-vline,
  WA_ISU_DM_MR_STREET_S_MR_UNIT_D-AUF_ABL, sy-vline,
  WA_ISU_DM_MR_STREET_S_MR_UNIT_D-DOWNL_ABL, sy-vline,
  WA_ISU_DM_MR_STREET_S_MR_UNIT_D-DRUCK_ABL, sy-vline,
  WA_ISU_DM_MR_STREET_S_MR_UNIT_D-ANSCH_AUF, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISU_DM_MR_STREET_S_MR_UNIT_D 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_ISU_DM_MR_STREET_S_MR_UNIT_D 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_ISU_DM_MR_STREET_S_MR_UNIT_D INTO WA_ISU_DM_MR_STREET_S_MR_UNIT_D.


*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_ISU_DM_MR_STREET_S_MR_UNIT_D_STR, 
WA_MR_UNIT_D TYPE STRING,
MANDT TYPE STRING,
TERMSCHL TYPE STRING,
TERMTEXT TYPE STRING,
PERIODEW TYPE STRING,
PERIODET TYPE STRING,
EPER_ABL TYPE STRING,
AUF_ABL TYPE STRING,
DOWNL_ABL TYPE STRING,
DRUCK_ABL TYPE STRING,
ANSCH_AUF TYPE STRING,
AUKSA_AUF TYPE STRING,
ZLEISTE TYPE STRING,
PORTION TYPE STRING,
ABLESER TYPE STRING,
ABLZEIT TYPE STRING,
BELGNABL TYPE STRING,
AZVORABL TYPE STRING,
FORMULAR TYPE STRING,
ZUSMIT TYPE STRING,
DECKBLAT TYPE STRING,
KSA_FORM TYPE STRING,
ANSCH_FORM TYPE STRING,
MDENR TYPE STRING,
ZUORDKZ TYPE STRING,
MUENZZ TYPE STRING,
ABLKAR TYPE STRING,
STANDKAR TYPE STRING,
ANSCHKAR TYPE STRING,
ABLART TYPE STRING,
EROEDAT TYPE STRING,
ERNAM TYPE STRING,
AENDDATE TYPE STRING,
AENDNAM TYPE STRING,
ABLFIRMA TYPE STRING,
VERTRKL1 TYPE STRING,
SPARTENTY1 TYPE STRING,
VERTRKL2 TYPE STRING,
SPARTENTY2 TYPE STRING,
VERTRKL3 TYPE STRING,
SPARTENTY3 TYPE STRING,
VERTRKL4 TYPE STRING,
SPARTENTY4 TYPE STRING,
VERTRKL5 TYPE STRING,
SPARTENTY5 TYPE STRING,
IDENT TYPE STRING,
SAPKAL TYPE STRING,
STICHTAG TYPE STRING,
DOWN_FORM TYPE STRING,
TS_DYN TYPE STRING,
ADV_BILL TYPE STRING,
TAGE TYPE STRING,
AUF_KAL TYPE STRING,
DRU_KAL TYPE STRING,
DOW_KAL TYPE STRING,
ANK_KAL TYPE STRING,
KND_KAL TYPE STRING,
ABL_Z TYPE STRING,
BEGRU TYPE STRING,
PS_USE TYPE STRING,
OSB_GROUP TYPE STRING,
VISIBILITY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISU_DM_MR_STREET_S_MR_UNIT_D_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_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-WA_MR_UNIT_D sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-MANDT sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-TERMSCHL sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-TERMTEXT sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-PERIODEW sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-PERIODET sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-EPER_ABL sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-AUF_ABL sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-DOWNL_ABL sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-DRUCK_ABL sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-ANSCH_AUF sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-AUKSA_AUF sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-ZLEISTE sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-PORTION sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-ABLESER sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-ABLZEIT sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-BELGNABL sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-AZVORABL sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-FORMULAR sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-ZUSMIT sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-DECKBLAT sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-KSA_FORM sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-ANSCH_FORM sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-MDENR sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-ZUORDKZ sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-MUENZZ sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-ABLKAR sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-STANDKAR sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-ANSCHKAR sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-ABLART sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-EROEDAT sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-ERNAM sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-AENDDATE sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-AENDNAM sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-ABLFIRMA sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-VERTRKL1 sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-SPARTENTY1 sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-VERTRKL2 sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-SPARTENTY2 sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-VERTRKL3 sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-SPARTENTY3 sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-VERTRKL4 sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-SPARTENTY4 sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-VERTRKL5 sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-SPARTENTY5 sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-IDENT sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-SAPKAL sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-STICHTAG sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-DOWN_FORM sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-TS_DYN sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-ADV_BILL sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-TAGE sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-AUF_KAL sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-DRU_KAL sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-DOW_KAL sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-ANK_KAL sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-KND_KAL sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-ABL_Z sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-BEGRU sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-PS_USE sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-OSB_GROUP sy-vline 
WA_ISU_DM_MR_STREET_S_MR_UNIT_D_STR-VISIBILITY sy-vline      INTO ld_text SEPARATED BY SPACE.

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