ABAP Select data from SAP table GHO_S_MP_WELL_TEST_CHAR_DET into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GHO_S_MP_WELL_TEST_CHAR_DET
*  INTO TABLE @DATA(IT_GHO_S_MP_WELL_TEST_CHAR_DET2).
*--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_GHO_S_MP_WELL_TEST_CHAR_DET INDEX 1 INTO DATA(WA_GHO_S_MP_WELL_TEST_CHAR_DET2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GHO_S_MP_WELL_TEST_CHAR_DET>-GHO_NET_ID = 1.
<GHO_S_MP_WELL_TEST_CHAR_DET>-GHO_NET_OBJ_ID = 1.
<GHO_S_MP_WELL_TEST_CHAR_DET>-GHO_NET_OBJ_TYPE = 1.
<GHO_S_MP_WELL_TEST_CHAR_DET>-INSPLOT = 1.
<GHO_S_MP_WELL_TEST_CHAR_DET>-GHO_EFFECTIVE_FROM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GHO_S_MP_WELL_TEST_CHAR_DET-GHO_EFFECTIVE_TO, sy-vline,
  WA_GHO_S_MP_WELL_TEST_CHAR_DET-GHO_START_OF_TEST, sy-vline,
  WA_GHO_S_MP_WELL_TEST_CHAR_DET-GHO_END_OF_TEST, sy-vline,
  WA_GHO_S_MP_WELL_TEST_CHAR_DET-GHO_MEAS_CAT_ID, sy-vline,
  WA_GHO_S_MP_WELL_TEST_CHAR_DET-CHARACTERISTICS, sy-vline,
  WA_GHO_S_MP_WELL_TEST_CHAR_DET-QUANTITY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GHO_S_MP_WELL_TEST_CHAR_DET 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_GHO_S_MP_WELL_TEST_CHAR_DET 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_GHO_S_MP_WELL_TEST_CHAR_DET INTO WA_GHO_S_MP_WELL_TEST_CHAR_DET.


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

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

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

*Conversion exit NUMCV, internal->external for field INSPOPER
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_GHO_S_MP_WELL_TEST_CHAR_DET-INSPOPER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GHO_S_MP_WELL_TEST_CHAR_DET-INSPOPER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field FUOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_GHO_S_MP_WELL_TEST_CHAR_DET-FUOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GHO_S_MP_WELL_TEST_CHAR_DET-FUOM.
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_GHO_S_MP_WELL_TEST_CHAR_DET_STR, 
GHO_NET_ID TYPE STRING,
GHO_NET_OBJ_ID TYPE STRING,
GHO_NET_OBJ_TYPE TYPE STRING,
INSPLOT TYPE STRING,
GHO_EFFECTIVE_FROM TYPE STRING,
GHO_EFFECTIVE_TO TYPE STRING,
GHO_START_OF_TEST TYPE STRING,
GHO_END_OF_TEST TYPE STRING,
GHO_MEAS_CAT_ID TYPE STRING,
CHARACTERISTICS TYPE STRING,
QUANTITY TYPE STRING,
UOM TYPE STRING,
CHAR_DESC TYPE STRING,
TO_HIDE TYPE STRING,
INSPOPER TYPE STRING,
INSPCHAR TYPE STRING,
WC_GUID TYPE STRING,
FNAME TYPE STRING,
FLABEL TYPE STRING,
FLENGTH TYPE STRING,
FDECIMAL TYPE STRING,
FSIGN TYPE STRING,
FGROUP TYPE STRING,
FGROUP_TEXT TYPE STRING,
FMODE TYPE STRING,
FUOM TYPE STRING,
FVALUETYPE TYPE STRING,
FNUMVALUE TYPE STRING,
FCHARVALUE TYPE STRING,
FDATEVALUE TYPE STRING,
FOPT TYPE STRING,
FLOW TYPE STRING,
FHIGH TYPE STRING,
FCHARDESC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GHO_S_MP_WELL_TEST_CHAR_DET_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_GHO_S_MP_WELL_TEST_CHAR_DET_STR-GHO_NET_ID sy-vline 
WA_GHO_S_MP_WELL_TEST_CHAR_DET_STR-GHO_NET_OBJ_ID sy-vline 
WA_GHO_S_MP_WELL_TEST_CHAR_DET_STR-GHO_NET_OBJ_TYPE sy-vline 
WA_GHO_S_MP_WELL_TEST_CHAR_DET_STR-INSPLOT sy-vline 
WA_GHO_S_MP_WELL_TEST_CHAR_DET_STR-GHO_EFFECTIVE_FROM sy-vline 
WA_GHO_S_MP_WELL_TEST_CHAR_DET_STR-GHO_EFFECTIVE_TO sy-vline 
WA_GHO_S_MP_WELL_TEST_CHAR_DET_STR-GHO_START_OF_TEST sy-vline 
WA_GHO_S_MP_WELL_TEST_CHAR_DET_STR-GHO_END_OF_TEST sy-vline 
WA_GHO_S_MP_WELL_TEST_CHAR_DET_STR-GHO_MEAS_CAT_ID sy-vline 
WA_GHO_S_MP_WELL_TEST_CHAR_DET_STR-CHARACTERISTICS sy-vline 
WA_GHO_S_MP_WELL_TEST_CHAR_DET_STR-QUANTITY sy-vline 
WA_GHO_S_MP_WELL_TEST_CHAR_DET_STR-UOM sy-vline 
WA_GHO_S_MP_WELL_TEST_CHAR_DET_STR-CHAR_DESC sy-vline 
WA_GHO_S_MP_WELL_TEST_CHAR_DET_STR-TO_HIDE sy-vline 
WA_GHO_S_MP_WELL_TEST_CHAR_DET_STR-INSPOPER sy-vline 
WA_GHO_S_MP_WELL_TEST_CHAR_DET_STR-INSPCHAR sy-vline 
WA_GHO_S_MP_WELL_TEST_CHAR_DET_STR-WC_GUID sy-vline 
WA_GHO_S_MP_WELL_TEST_CHAR_DET_STR-FNAME sy-vline 
WA_GHO_S_MP_WELL_TEST_CHAR_DET_STR-FLABEL sy-vline 
WA_GHO_S_MP_WELL_TEST_CHAR_DET_STR-FLENGTH sy-vline 
WA_GHO_S_MP_WELL_TEST_CHAR_DET_STR-FDECIMAL sy-vline 
WA_GHO_S_MP_WELL_TEST_CHAR_DET_STR-FSIGN sy-vline 
WA_GHO_S_MP_WELL_TEST_CHAR_DET_STR-FGROUP sy-vline 
WA_GHO_S_MP_WELL_TEST_CHAR_DET_STR-FGROUP_TEXT sy-vline 
WA_GHO_S_MP_WELL_TEST_CHAR_DET_STR-FMODE sy-vline 
WA_GHO_S_MP_WELL_TEST_CHAR_DET_STR-FUOM sy-vline 
WA_GHO_S_MP_WELL_TEST_CHAR_DET_STR-FVALUETYPE sy-vline 
WA_GHO_S_MP_WELL_TEST_CHAR_DET_STR-FNUMVALUE sy-vline 
WA_GHO_S_MP_WELL_TEST_CHAR_DET_STR-FCHARVALUE sy-vline 
WA_GHO_S_MP_WELL_TEST_CHAR_DET_STR-FDATEVALUE sy-vline 
WA_GHO_S_MP_WELL_TEST_CHAR_DET_STR-FOPT sy-vline 
WA_GHO_S_MP_WELL_TEST_CHAR_DET_STR-FLOW sy-vline 
WA_GHO_S_MP_WELL_TEST_CHAR_DET_STR-FHIGH sy-vline 
WA_GHO_S_MP_WELL_TEST_CHAR_DET_STR-FCHARDESC sy-vline      INTO ld_text SEPARATED BY SPACE.

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