ABAP Select data from SAP table U_27377 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP U_27377 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 U_27377. 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 U_27377 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_U_27377 TYPE STANDARD TABLE OF U_27377,
      WA_U_27377 TYPE U_27377,
      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: <U_27377> TYPE U_27377.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_U_27377.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM U_27377
  INTO TABLE IT_U_27377.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM U_27377
*  INTO TABLE @DATA(IT_U_273772).
*--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_U_27377 INDEX 1 INTO DATA(WA_U_273772).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_U_27377 ASSIGNING <U_27377>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<U_27377>-MANDT = 1.
<U_27377>-MOLGA = 1.
<U_27377>-MOBDE = 1.
<U_27377>-GRBAL = 1.
<U_27377>-BRULE = 1.

ENDLOOP.

LOOP AT IT_U_27377 INTO WA_U_27377.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_U_27377-ENDDA, sy-vline,
  WA_U_27377-BEGDA, sy-vline,
  WA_U_27377-LOLIM, sy-vline,
  WA_U_27377-LIMIT, sy-vline,
  WA_U_27377-HRSOR, sy-vline,
  WA_U_27377-HRSPA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_U_27377 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_U_27377 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_U_27377 INTO WA_U_27377.


*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 ISOLA, internal->external for field SPRSL
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_U_27377-SPRSL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_27377-SPRSL.
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_U_27377_STR, 
MANDT TYPE STRING,
MOLGA TYPE STRING,
MOBDE TYPE STRING,
GRBAL TYPE STRING,
BRULE TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
LOLIM TYPE STRING,
LIMIT TYPE STRING,
HRSOR TYPE STRING,
HRSPA TYPE STRING,
AGELO TYPE STRING,
AGEHI TYPE STRING,
AGEUN TYPE STRING,
CKPNT TYPE STRING,
CKPMO TYPE STRING,
ZTART TYPE STRING,
CPMOD TYPE STRING,
CPPMO TYPE STRING,
CPPPR TYPE STRING,
CPNUM TYPE STRING,
CPUNI TYPE STRING,
ZASTO TYPE STRING,
XZEST TYPE STRING,
BLCUT TYPE STRING,
CZTRT TYPE STRING,
XZEZT TYPE STRING,
VRZZT TYPE STRING,
LGART TYPE STRING,
IFTYP TYPE STRING,
VRZLG TYPE STRING,
CMESS TYPE STRING,
MESTY TYPE STRING,
RMESS TYPE STRING,
TOLER TYPE STRING,
TLPRC TYPE STRING,
METHO TYPE STRING,
SPRSL TYPE STRING,
BTEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_U_27377_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_U_27377_STR-MANDT sy-vline 
WA_U_27377_STR-MOLGA sy-vline 
WA_U_27377_STR-MOBDE sy-vline 
WA_U_27377_STR-GRBAL sy-vline 
WA_U_27377_STR-BRULE sy-vline 
WA_U_27377_STR-ENDDA sy-vline 
WA_U_27377_STR-BEGDA sy-vline 
WA_U_27377_STR-LOLIM sy-vline 
WA_U_27377_STR-LIMIT sy-vline 
WA_U_27377_STR-HRSOR sy-vline 
WA_U_27377_STR-HRSPA sy-vline 
WA_U_27377_STR-AGELO sy-vline 
WA_U_27377_STR-AGEHI sy-vline 
WA_U_27377_STR-AGEUN sy-vline 
WA_U_27377_STR-CKPNT sy-vline 
WA_U_27377_STR-CKPMO sy-vline 
WA_U_27377_STR-ZTART sy-vline 
WA_U_27377_STR-CPMOD sy-vline 
WA_U_27377_STR-CPPMO sy-vline 
WA_U_27377_STR-CPPPR sy-vline 
WA_U_27377_STR-CPNUM sy-vline 
WA_U_27377_STR-CPUNI sy-vline 
WA_U_27377_STR-ZASTO sy-vline 
WA_U_27377_STR-XZEST sy-vline 
WA_U_27377_STR-BLCUT sy-vline 
WA_U_27377_STR-CZTRT sy-vline 
WA_U_27377_STR-XZEZT sy-vline 
WA_U_27377_STR-VRZZT sy-vline 
WA_U_27377_STR-LGART sy-vline 
WA_U_27377_STR-IFTYP sy-vline 
WA_U_27377_STR-VRZLG sy-vline 
WA_U_27377_STR-CMESS sy-vline 
WA_U_27377_STR-MESTY sy-vline 
WA_U_27377_STR-RMESS sy-vline 
WA_U_27377_STR-TOLER sy-vline 
WA_U_27377_STR-TLPRC sy-vline 
WA_U_27377_STR-METHO sy-vline 
WA_U_27377_STR-SPRSL sy-vline 
WA_U_27377_STR-BTEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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