ABAP Select data from SAP table /BCV/S_FND_PATTERN_TEST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /BCV/S_FND_PATTERN_TEST
*  INTO TABLE @DATA(IT_/BCV/S_FND_PATTERN_TEST2).
*--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_/BCV/S_FND_PATTERN_TEST INDEX 1 INTO DATA(WA_/BCV/S_FND_PATTERN_TEST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</BCV/S_FND_PATTERN_TEST>-I = 1.
</BCV/S_FND_PATTERN_TEST>-F = 1.
</BCV/S_FND_PATTERN_TEST>-P = 1.
</BCV/S_FND_PATTERN_TEST>-N = 1.
</BCV/S_FND_PATTERN_TEST>-D = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/BCV/S_FND_PATTERN_TEST-T, sy-vline,
  WA_/BCV/S_FND_PATTERN_TEST-C, sy-vline,
  WA_/BCV/S_FND_PATTERN_TEST-X, sy-vline,
  WA_/BCV/S_FND_PATTERN_TEST-FND_QUAN_17_3, sy-vline,
  WA_/BCV/S_FND_PATTERN_TEST-FND_UNIT, sy-vline,
  WA_/BCV/S_FND_PATTERN_TEST-FND_CURR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/BCV/S_FND_PATTERN_TEST 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_/BCV/S_FND_PATTERN_TEST 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_/BCV/S_FND_PATTERN_TEST INTO WA_/BCV/S_FND_PATTERN_TEST.


*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 BCVTM, internal->external for field T
CALL FUNCTION 'CONVERSION_EXIT_BCVTM_OUTPUT'
  EXPORTING
    input =                      WA_/BCV/S_FND_PATTERN_TEST-T
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BCV/S_FND_PATTERN_TEST-T.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit BCVWK, internal->external for field FND_WEEK
CALL FUNCTION 'CONVERSION_EXIT_BCVWK_OUTPUT'
  EXPORTING
    input =                      WA_/BCV/S_FND_PATTERN_TEST-FND_WEEK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BCV/S_FND_PATTERN_TEST-FND_WEEK.
WRITE:/ 'New Value:', ld_input.

*Conversion exit BCVMN, internal->external for field FND_MONTH
CALL FUNCTION 'CONVERSION_EXIT_BCVMN_OUTPUT'
  EXPORTING
    input =                      WA_/BCV/S_FND_PATTERN_TEST-FND_MONTH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BCV/S_FND_PATTERN_TEST-FND_MONTH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit BCVQT, internal->external for field FND_QUARTER
CALL FUNCTION 'CONVERSION_EXIT_BCVQT_OUTPUT'
  EXPORTING
    input =                      WA_/BCV/S_FND_PATTERN_TEST-FND_QUARTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BCV/S_FND_PATTERN_TEST-FND_QUARTER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit BCVFP, internal->external for field FND_FPER
CALL FUNCTION 'CONVERSION_EXIT_BCVFP_OUTPUT'
  EXPORTING
    input =                      WA_/BCV/S_FND_PATTERN_TEST-FND_FPER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BCV/S_FND_PATTERN_TEST-FND_FPER.
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_/BCV/S_FND_PATTERN_TEST_STR, 
I TYPE STRING,
F TYPE STRING,
P TYPE STRING,
N TYPE STRING,
D TYPE STRING,
T TYPE STRING,
C TYPE STRING,
X TYPE STRING,
FND_QUAN_17_3 TYPE STRING,
FND_UNIT TYPE STRING,
FND_CURR TYPE STRING,
FND_CUKY TYPE STRING,
FND_WEEK TYPE STRING,
FND_MONTH TYPE STRING,
FND_QUARTER TYPE STRING,
FND_FPER TYPE STRING,
FND_YEAR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/BCV/S_FND_PATTERN_TEST_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_/BCV/S_FND_PATTERN_TEST_STR-I sy-vline 
WA_/BCV/S_FND_PATTERN_TEST_STR-F sy-vline 
WA_/BCV/S_FND_PATTERN_TEST_STR-P sy-vline 
WA_/BCV/S_FND_PATTERN_TEST_STR-N sy-vline 
WA_/BCV/S_FND_PATTERN_TEST_STR-D sy-vline 
WA_/BCV/S_FND_PATTERN_TEST_STR-T sy-vline 
WA_/BCV/S_FND_PATTERN_TEST_STR-C sy-vline 
WA_/BCV/S_FND_PATTERN_TEST_STR-X sy-vline 
WA_/BCV/S_FND_PATTERN_TEST_STR-FND_QUAN_17_3 sy-vline 
WA_/BCV/S_FND_PATTERN_TEST_STR-FND_UNIT sy-vline 
WA_/BCV/S_FND_PATTERN_TEST_STR-FND_CURR sy-vline 
WA_/BCV/S_FND_PATTERN_TEST_STR-FND_CUKY sy-vline 
WA_/BCV/S_FND_PATTERN_TEST_STR-FND_WEEK sy-vline 
WA_/BCV/S_FND_PATTERN_TEST_STR-FND_MONTH sy-vline 
WA_/BCV/S_FND_PATTERN_TEST_STR-FND_QUARTER sy-vline 
WA_/BCV/S_FND_PATTERN_TEST_STR-FND_FPER sy-vline 
WA_/BCV/S_FND_PATTERN_TEST_STR-FND_YEAR sy-vline      INTO ld_text SEPARATED BY SPACE.

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