ABAP Select data from SAP table /SAPAPO/V_MODLOC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPAPO/V_MODLOC
*  INTO TABLE @DATA(IT_/SAPAPO/V_MODLOC2).
*--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_/SAPAPO/V_MODLOC INDEX 1 INTO DATA(WA_/SAPAPO/V_MODLOC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPAPO/V_MODLOC>-MANDT = 1.
</SAPAPO/V_MODLOC>-LOCID = 1.
</SAPAPO/V_MODLOC>-LOCNO = 1.
</SAPAPO/V_MODLOC>-MODEL = 1.
</SAPAPO/V_MODLOC>-LOCTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPAPO/V_MODLOC-TZONE, sy-vline,
  WA_/SAPAPO/V_MODLOC-XPOS, sy-vline,
  WA_/SAPAPO/V_MODLOC-YPOS, sy-vline,
  WA_/SAPAPO/V_MODLOC-HANDL, sy-vline,
  WA_/SAPAPO/V_MODLOC-STORE, sy-vline,
  WA_/SAPAPO/V_MODLOC-PPCAL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPAPO/V_MODLOC 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_/SAPAPO/V_MODLOC 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_/SAPAPO/V_MODLOC INTO WA_/SAPAPO/V_MODLOC.


*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 CUNIT, internal->external for field COM_TIME_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/V_MODLOC-COM_TIME_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/V_MODLOC-COM_TIME_UNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field TRPCR_TIME_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/V_MODLOC-TRPCR_TIME_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/V_MODLOC-TRPCR_TIME_UNIT.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit TSTRN, internal->external for field DURAT
CALL FUNCTION 'CONVERSION_EXIT_TSTRN_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/V_MODLOC-DURAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/V_MODLOC-DURAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTLC, internal->external for field CREATEUTC
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/V_MODLOC-CREATEUTC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/V_MODLOC-CREATEUTC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTLC, internal->external for field CHANGEUTC
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/V_MODLOC-CHANGEUTC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/V_MODLOC-CHANGEUTC.
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_/SAPAPO/V_MODLOC_STR, 
MANDT TYPE STRING,
LOCID TYPE STRING,
LOCNO TYPE STRING,
MODEL TYPE STRING,
LOCTYPE TYPE STRING,
TZONE TYPE STRING,
XPOS TYPE STRING,
YPOS TYPE STRING,
HANDL TYPE STRING,
STORE TYPE STRING,
PPCAL TYPE STRING,
SDCAL TYPE STRING,
STCAL TYPE STRING,
HANDL_OUT TYPE STRING,
TIME_RES TYPE STRING,
TPRES_INB TYPE STRING,
TPRES_OUT TYPE STRING,
LVORM TYPE STRING,
LOCPRIO TYPE STRING,
ATDSP TYPE STRING,
ATDDM TYPE STRING,
PRREG TYPE STRING,
COMP_FLG TYPE STRING,
CONSOL_FLG TYPE STRING,
PUSH_FLG TYPE STRING,
COM_TIME TYPE STRING,
COM_TIME_UNIT TYPE STRING,
TRPCR_TIME TYPE STRING,
TRPCR_TIME_UNIT TYPE STRING,
RESFLAG TYPE STRING,
STOCG TYPE STRING,
ADRNUMMER TYPE STRING,
SUBLOC TYPE STRING,
SETUPKEY TYPE STRING,
FVISIT TYPE STRING,
LVISIT TYPE STRING,
EDI_PARTNER TYPE STRING,
PARTNER TYPE STRING,
SCACD TYPE STRING,
CONT_MV TYPE STRING,
DURAT TYPE STRING,
PERF_PCT TYPE STRING,
KOSCH TYPE STRING,
ATTLO01 TYPE STRING,
ATTLO02 TYPE STRING,
ATTLO03 TYPE STRING,
ATTLO04 TYPE STRING,
ATTLO05 TYPE STRING,
CREATEUSER TYPE STRING,
CREATEUTC TYPE STRING,
CHANGEUSER TYPE STRING,
CHANGEUTC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPAPO/V_MODLOC_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_/SAPAPO/V_MODLOC_STR-MANDT sy-vline 
WA_/SAPAPO/V_MODLOC_STR-LOCID sy-vline 
WA_/SAPAPO/V_MODLOC_STR-LOCNO sy-vline 
WA_/SAPAPO/V_MODLOC_STR-MODEL sy-vline 
WA_/SAPAPO/V_MODLOC_STR-LOCTYPE sy-vline 
WA_/SAPAPO/V_MODLOC_STR-TZONE sy-vline 
WA_/SAPAPO/V_MODLOC_STR-XPOS sy-vline 
WA_/SAPAPO/V_MODLOC_STR-YPOS sy-vline 
WA_/SAPAPO/V_MODLOC_STR-HANDL sy-vline 
WA_/SAPAPO/V_MODLOC_STR-STORE sy-vline 
WA_/SAPAPO/V_MODLOC_STR-PPCAL sy-vline 
WA_/SAPAPO/V_MODLOC_STR-SDCAL sy-vline 
WA_/SAPAPO/V_MODLOC_STR-STCAL sy-vline 
WA_/SAPAPO/V_MODLOC_STR-HANDL_OUT sy-vline 
WA_/SAPAPO/V_MODLOC_STR-TIME_RES sy-vline 
WA_/SAPAPO/V_MODLOC_STR-TPRES_INB sy-vline 
WA_/SAPAPO/V_MODLOC_STR-TPRES_OUT sy-vline 
WA_/SAPAPO/V_MODLOC_STR-LVORM sy-vline 
WA_/SAPAPO/V_MODLOC_STR-LOCPRIO sy-vline 
WA_/SAPAPO/V_MODLOC_STR-ATDSP sy-vline 
WA_/SAPAPO/V_MODLOC_STR-ATDDM sy-vline 
WA_/SAPAPO/V_MODLOC_STR-PRREG sy-vline 
WA_/SAPAPO/V_MODLOC_STR-COMP_FLG sy-vline 
WA_/SAPAPO/V_MODLOC_STR-CONSOL_FLG sy-vline 
WA_/SAPAPO/V_MODLOC_STR-PUSH_FLG sy-vline 
WA_/SAPAPO/V_MODLOC_STR-COM_TIME sy-vline 
WA_/SAPAPO/V_MODLOC_STR-COM_TIME_UNIT sy-vline 
WA_/SAPAPO/V_MODLOC_STR-TRPCR_TIME sy-vline 
WA_/SAPAPO/V_MODLOC_STR-TRPCR_TIME_UNIT sy-vline 
WA_/SAPAPO/V_MODLOC_STR-RESFLAG sy-vline 
WA_/SAPAPO/V_MODLOC_STR-STOCG sy-vline 
WA_/SAPAPO/V_MODLOC_STR-ADRNUMMER sy-vline 
WA_/SAPAPO/V_MODLOC_STR-SUBLOC sy-vline 
WA_/SAPAPO/V_MODLOC_STR-SETUPKEY sy-vline 
WA_/SAPAPO/V_MODLOC_STR-FVISIT sy-vline 
WA_/SAPAPO/V_MODLOC_STR-LVISIT sy-vline 
WA_/SAPAPO/V_MODLOC_STR-EDI_PARTNER sy-vline 
WA_/SAPAPO/V_MODLOC_STR-PARTNER sy-vline 
WA_/SAPAPO/V_MODLOC_STR-SCACD sy-vline 
WA_/SAPAPO/V_MODLOC_STR-CONT_MV sy-vline 
WA_/SAPAPO/V_MODLOC_STR-DURAT sy-vline 
WA_/SAPAPO/V_MODLOC_STR-PERF_PCT sy-vline 
WA_/SAPAPO/V_MODLOC_STR-KOSCH sy-vline 
WA_/SAPAPO/V_MODLOC_STR-ATTLO01 sy-vline 
WA_/SAPAPO/V_MODLOC_STR-ATTLO02 sy-vline 
WA_/SAPAPO/V_MODLOC_STR-ATTLO03 sy-vline 
WA_/SAPAPO/V_MODLOC_STR-ATTLO04 sy-vline 
WA_/SAPAPO/V_MODLOC_STR-ATTLO05 sy-vline 
WA_/SAPAPO/V_MODLOC_STR-CREATEUSER sy-vline 
WA_/SAPAPO/V_MODLOC_STR-CREATEUTC sy-vline 
WA_/SAPAPO/V_MODLOC_STR-CHANGEUSER sy-vline 
WA_/SAPAPO/V_MODLOC_STR-CHANGEUTC sy-vline      INTO ld_text SEPARATED BY SPACE.

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