ABAP Select data from SAP table ISU_DM_MR_COVER_P_S_DEV_LOC 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_COVER_P_S_DEV_LOC 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_COVER_P_S_DEV_LOC. 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_COVER_P_S_DEV_LOC 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_COVER_P_S_DEV_LOC TYPE STANDARD TABLE OF ISU_DM_MR_COVER_P_S_DEV_LOC,
      WA_ISU_DM_MR_COVER_P_S_DEV_LOC TYPE ISU_DM_MR_COVER_P_S_DEV_LOC,
      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_COVER_P_S_DEV_LOC> TYPE ISU_DM_MR_COVER_P_S_DEV_LOC.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISU_DM_MR_COVER_P_S_DEV_LOC
*  INTO TABLE @DATA(IT_ISU_DM_MR_COVER_P_S_DEV_LOC2).
*--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_COVER_P_S_DEV_LOC INDEX 1 INTO DATA(WA_ISU_DM_MR_COVER_P_S_DEV_LOC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISU_DM_MR_COVER_P_S_DEV_LOC>-WA_DEV_LOC = 1.
<ISU_DM_MR_COVER_P_S_DEV_LOC>-MANDT = 1.
<ISU_DM_MR_COVER_P_S_DEV_LOC>-DEVLOC = 1.
<ISU_DM_MR_COVER_P_S_DEV_LOC>-SPRAS = 1.
<ISU_DM_MR_COVER_P_S_DEV_LOC>-PLTXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISU_DM_MR_COVER_P_S_DEV_LOC-KZLTX, sy-vline,
  WA_ISU_DM_MR_COVER_P_S_DEV_LOC-TPLKZ, sy-vline,
  WA_ISU_DM_MR_COVER_P_S_DEV_LOC-FLTYP, sy-vline,
  WA_ISU_DM_MR_COVER_P_S_DEV_LOC-HAUS, sy-vline,
  WA_ISU_DM_MR_COVER_P_S_DEV_LOC-DATAB, sy-vline,
  WA_ISU_DM_MR_COVER_P_S_DEV_LOC-BEGRU, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISU_DM_MR_COVER_P_S_DEV_LOC 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_COVER_P_S_DEV_LOC 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_COVER_P_S_DEV_LOC INTO WA_ISU_DM_MR_COVER_P_S_DEV_LOC.


*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 DEVLOC
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_ISU_DM_MR_COVER_P_S_DEV_LOC-DEVLOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISU_DM_MR_COVER_P_S_DEV_LOC-DEVLOC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_ISU_DM_MR_COVER_P_S_DEV_LOC-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISU_DM_MR_COVER_P_S_DEV_LOC-SPRAS.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ALPHA, internal->external for field ADDRNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISU_DM_MR_COVER_P_S_DEV_LOC-ADDRNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISU_DM_MR_COVER_P_S_DEV_LOC-ADDRNUM.
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_ISU_DM_MR_COVER_P_S_DEV_LOC_STR, 
WA_DEV_LOC TYPE STRING,
MANDT TYPE STRING,
DEVLOC TYPE STRING,
SPRAS TYPE STRING,
PLTXT TYPE STRING,
KZLTX TYPE STRING,
TPLKZ TYPE STRING,
FLTYP TYPE STRING,
HAUS TYPE STRING,
DATAB TYPE STRING,
BEGRU TYPE STRING,
EINZLI TYPE STRING,
IWERK TYPE STRING,
IWERKI TYPE STRING,
POSNR TYPE STRING,
ISTYP TYPE STRING,
VSTELLE TYPE STRING,
SWERK TYPE STRING,
SWERKI TYPE STRING,
BUKRS TYPE STRING,
BUKRSI TYPE STRING,
ADRNR TYPE STRING,
ADRNRI TYPE STRING,
STORT TYPE STRING,
STORTI TYPE STRING,
STORTZUS TYPE STRING,
ILOAN TYPE STRING,
OBJNR TYPE STRING,
IEQUI TYPE STRING,
IEQUII TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
STRNO TYPE STRING,
WA_LOCATION_T TYPE STRING,
MANDT TYPE STRING,
WERKS TYPE STRING,
STAND TYPE STRING,
KTEXT TYPE STRING,
ADDRNUM TYPE STRING,
T_DEVICE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISU_DM_MR_COVER_P_S_DEV_LOC_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_COVER_P_S_DEV_LOC_STR-WA_DEV_LOC sy-vline 
WA_ISU_DM_MR_COVER_P_S_DEV_LOC_STR-MANDT sy-vline 
WA_ISU_DM_MR_COVER_P_S_DEV_LOC_STR-DEVLOC sy-vline 
WA_ISU_DM_MR_COVER_P_S_DEV_LOC_STR-SPRAS sy-vline 
WA_ISU_DM_MR_COVER_P_S_DEV_LOC_STR-PLTXT sy-vline 
WA_ISU_DM_MR_COVER_P_S_DEV_LOC_STR-KZLTX sy-vline 
WA_ISU_DM_MR_COVER_P_S_DEV_LOC_STR-TPLKZ sy-vline 
WA_ISU_DM_MR_COVER_P_S_DEV_LOC_STR-FLTYP sy-vline 
WA_ISU_DM_MR_COVER_P_S_DEV_LOC_STR-HAUS sy-vline 
WA_ISU_DM_MR_COVER_P_S_DEV_LOC_STR-DATAB sy-vline 
WA_ISU_DM_MR_COVER_P_S_DEV_LOC_STR-BEGRU sy-vline 
WA_ISU_DM_MR_COVER_P_S_DEV_LOC_STR-EINZLI sy-vline 
WA_ISU_DM_MR_COVER_P_S_DEV_LOC_STR-IWERK sy-vline 
WA_ISU_DM_MR_COVER_P_S_DEV_LOC_STR-IWERKI sy-vline 
WA_ISU_DM_MR_COVER_P_S_DEV_LOC_STR-POSNR sy-vline 
WA_ISU_DM_MR_COVER_P_S_DEV_LOC_STR-ISTYP sy-vline 
WA_ISU_DM_MR_COVER_P_S_DEV_LOC_STR-VSTELLE sy-vline 
WA_ISU_DM_MR_COVER_P_S_DEV_LOC_STR-SWERK sy-vline 
WA_ISU_DM_MR_COVER_P_S_DEV_LOC_STR-SWERKI sy-vline 
WA_ISU_DM_MR_COVER_P_S_DEV_LOC_STR-BUKRS sy-vline 
WA_ISU_DM_MR_COVER_P_S_DEV_LOC_STR-BUKRSI sy-vline 
WA_ISU_DM_MR_COVER_P_S_DEV_LOC_STR-ADRNR sy-vline 
WA_ISU_DM_MR_COVER_P_S_DEV_LOC_STR-ADRNRI sy-vline 
WA_ISU_DM_MR_COVER_P_S_DEV_LOC_STR-STORT sy-vline 
WA_ISU_DM_MR_COVER_P_S_DEV_LOC_STR-STORTI sy-vline 
WA_ISU_DM_MR_COVER_P_S_DEV_LOC_STR-STORTZUS sy-vline 
WA_ISU_DM_MR_COVER_P_S_DEV_LOC_STR-ILOAN sy-vline 
WA_ISU_DM_MR_COVER_P_S_DEV_LOC_STR-OBJNR sy-vline 
WA_ISU_DM_MR_COVER_P_S_DEV_LOC_STR-IEQUI sy-vline 
WA_ISU_DM_MR_COVER_P_S_DEV_LOC_STR-IEQUII sy-vline 
WA_ISU_DM_MR_COVER_P_S_DEV_LOC_STR-ERDAT sy-vline 
WA_ISU_DM_MR_COVER_P_S_DEV_LOC_STR-ERNAM sy-vline 
WA_ISU_DM_MR_COVER_P_S_DEV_LOC_STR-AEDAT sy-vline 
WA_ISU_DM_MR_COVER_P_S_DEV_LOC_STR-AENAM sy-vline 
WA_ISU_DM_MR_COVER_P_S_DEV_LOC_STR-STRNO sy-vline 
WA_ISU_DM_MR_COVER_P_S_DEV_LOC_STR-WA_LOCATION_T sy-vline 
WA_ISU_DM_MR_COVER_P_S_DEV_LOC_STR-MANDT sy-vline 
WA_ISU_DM_MR_COVER_P_S_DEV_LOC_STR-WERKS sy-vline 
WA_ISU_DM_MR_COVER_P_S_DEV_LOC_STR-STAND sy-vline 
WA_ISU_DM_MR_COVER_P_S_DEV_LOC_STR-KTEXT sy-vline 
WA_ISU_DM_MR_COVER_P_S_DEV_LOC_STR-ADDRNUM sy-vline 
WA_ISU_DM_MR_COVER_P_S_DEV_LOC_STR-T_DEVICE sy-vline      INTO ld_text SEPARATED BY SPACE.

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