ABAP Select data from SAP table EHFNDD_PHYSCHEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EHFNDD_PHYSCHEM
*  INTO TABLE @DATA(IT_EHFNDD_PHYSCHEM2).
*--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_EHFNDD_PHYSCHEM INDEX 1 INTO DATA(WA_EHFNDD_PHYSCHEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EHFNDD_PHYSCHEM>-MANDT = 1.
<EHFNDD_PHYSCHEM>-UUID = 1.
<EHFNDD_PHYSCHEM>-CHEMICAL_COMPLIANCE_UUID = 1.
<EHFNDD_PHYSCHEM>-SUBSTANCE_UUID = 1.
<EHFNDD_PHYSCHEM>-CREA_DATE_TIME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EHFNDD_PHYSCHEM-CREA_UNAME, sy-vline,
  WA_EHFNDD_PHYSCHEM-LCHG_DATE_TIME, sy-vline,
  WA_EHFNDD_PHYSCHEM-LCHG_UNAME, sy-vline,
  WA_EHFNDD_PHYSCHEM-PROCESSING_STATUS, sy-vline,
  WA_EHFNDD_PHYSCHEM-RELEASE_BY, sy-vline,
  WA_EHFNDD_PHYSCHEM-VALID_FROM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EHFNDD_PHYSCHEM 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_EHFNDD_PHYSCHEM 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_EHFNDD_PHYSCHEM INTO WA_EHFNDD_PHYSCHEM.


*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 ALPHA, internal->external for field RELEASE_BY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EHFNDD_PHYSCHEM-RELEASE_BY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHFNDD_PHYSCHEM-RELEASE_BY.
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_EHFNDD_PHYSCHEM_STR, 
MANDT TYPE STRING,
UUID TYPE STRING,
CHEMICAL_COMPLIANCE_UUID TYPE STRING,
SUBSTANCE_UUID TYPE STRING,
CREA_DATE_TIME TYPE STRING,
CREA_UNAME TYPE STRING,
LCHG_DATE_TIME TYPE STRING,
LCHG_UNAME TYPE STRING,
PROCESSING_STATUS TYPE STRING,
RELEASE_BY TYPE STRING,
VALID_FROM TYPE STRING,
VALID_TO TYPE STRING,
ODOR_THLD_HAS_NO_APPL TYPE STRING,
ODOR_THLD_HAS_NO_DATA TYPE STRING,
MOLAR_MASS_HAS_NO_APPL TYPE STRING,
MOLAR_MASS_HAS_NO_DATA TYPE STRING,
PARTICLE_SIZE_HAS_NO_APPL TYPE STRING,
PARTICLE_SIZE_HAS_NO_DATA TYPE STRING,
VAPOR_PRSSR_HAS_NO_APPL TYPE STRING,
VAPOR_PRSSR_HAS_NO_DATA TYPE STRING,
EVAPORATION_RATE_HAS_NO_APPL TYPE STRING,
EVAPORATION_RATE_HAS_NO_DATA TYPE STRING,
PS_DISTR_HAS_NO_APPL TYPE STRING,
PS_DISTR_HAS_NO_DATA TYPE STRING,
DENSITY_HAS_NO_APPL TYPE STRING,
DENSITY_HAS_NO_DATA TYPE STRING,
BULK_DENSITY_HAS_NO_APPL TYPE STRING,
BULK_DENSITY_HAS_NO_DATA TYPE STRING,
RLTV_DENSITY_HAS_NO_APPL TYPE STRING,
RLTV_DENSITY_HAS_NO_DATA TYPE STRING,
RLTV_VAPOR_DENS_HAS_NO_APPL TYPE STRING,
RLTV_VAPOR_DENS_HAS_NO_DATA TYPE STRING,
FLOW_TIME_HAS_NO_APPL TYPE STRING,
FLOW_TIME_HAS_NO_DATA TYPE STRING,
VISCOSITY_DYN_HAS_NO_APPL TYPE STRING,
VISCOSITY_DYN_HAS_NO_DATA TYPE STRING,
VISCOSITY_KIN_HAS_NO_APPL TYPE STRING,
VISCOSITY_KIN_HAS_NO_DATA TYPE STRING,
WTR_SLBTY_HAS_NO_APPL TYPE STRING,
WTR_SLBTY_HAS_NO_DATA TYPE STRING,
PH_SCALE_HAS_NO_APPL TYPE STRING,
PH_SCALE_HAS_NO_DATA TYPE STRING,
MELTING_POINT_HAS_NO_APPL TYPE STRING,
MELTING_POINT_HAS_NO_DATA TYPE STRING,
BOILING_POINT_HAS_NO_APPL TYPE STRING,
BOILING_POINT_HAS_NO_DATA TYPE STRING,
PARTITION_COEFF_HAS_NO_APPL TYPE STRING,
PARTITION_COEFF_HAS_NO_DATA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EHFNDD_PHYSCHEM_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_EHFNDD_PHYSCHEM_STR-MANDT sy-vline 
WA_EHFNDD_PHYSCHEM_STR-UUID sy-vline 
WA_EHFNDD_PHYSCHEM_STR-CHEMICAL_COMPLIANCE_UUID sy-vline 
WA_EHFNDD_PHYSCHEM_STR-SUBSTANCE_UUID sy-vline 
WA_EHFNDD_PHYSCHEM_STR-CREA_DATE_TIME sy-vline 
WA_EHFNDD_PHYSCHEM_STR-CREA_UNAME sy-vline 
WA_EHFNDD_PHYSCHEM_STR-LCHG_DATE_TIME sy-vline 
WA_EHFNDD_PHYSCHEM_STR-LCHG_UNAME sy-vline 
WA_EHFNDD_PHYSCHEM_STR-PROCESSING_STATUS sy-vline 
WA_EHFNDD_PHYSCHEM_STR-RELEASE_BY sy-vline 
WA_EHFNDD_PHYSCHEM_STR-VALID_FROM sy-vline 
WA_EHFNDD_PHYSCHEM_STR-VALID_TO sy-vline 
WA_EHFNDD_PHYSCHEM_STR-ODOR_THLD_HAS_NO_APPL sy-vline 
WA_EHFNDD_PHYSCHEM_STR-ODOR_THLD_HAS_NO_DATA sy-vline 
WA_EHFNDD_PHYSCHEM_STR-MOLAR_MASS_HAS_NO_APPL sy-vline 
WA_EHFNDD_PHYSCHEM_STR-MOLAR_MASS_HAS_NO_DATA sy-vline 
WA_EHFNDD_PHYSCHEM_STR-PARTICLE_SIZE_HAS_NO_APPL sy-vline 
WA_EHFNDD_PHYSCHEM_STR-PARTICLE_SIZE_HAS_NO_DATA sy-vline 
WA_EHFNDD_PHYSCHEM_STR-VAPOR_PRSSR_HAS_NO_APPL sy-vline 
WA_EHFNDD_PHYSCHEM_STR-VAPOR_PRSSR_HAS_NO_DATA sy-vline 
WA_EHFNDD_PHYSCHEM_STR-EVAPORATION_RATE_HAS_NO_APPL sy-vline 
WA_EHFNDD_PHYSCHEM_STR-EVAPORATION_RATE_HAS_NO_DATA sy-vline 
WA_EHFNDD_PHYSCHEM_STR-PS_DISTR_HAS_NO_APPL sy-vline 
WA_EHFNDD_PHYSCHEM_STR-PS_DISTR_HAS_NO_DATA sy-vline 
WA_EHFNDD_PHYSCHEM_STR-DENSITY_HAS_NO_APPL sy-vline 
WA_EHFNDD_PHYSCHEM_STR-DENSITY_HAS_NO_DATA sy-vline 
WA_EHFNDD_PHYSCHEM_STR-BULK_DENSITY_HAS_NO_APPL sy-vline 
WA_EHFNDD_PHYSCHEM_STR-BULK_DENSITY_HAS_NO_DATA sy-vline 
WA_EHFNDD_PHYSCHEM_STR-RLTV_DENSITY_HAS_NO_APPL sy-vline 
WA_EHFNDD_PHYSCHEM_STR-RLTV_DENSITY_HAS_NO_DATA sy-vline 
WA_EHFNDD_PHYSCHEM_STR-RLTV_VAPOR_DENS_HAS_NO_APPL sy-vline 
WA_EHFNDD_PHYSCHEM_STR-RLTV_VAPOR_DENS_HAS_NO_DATA sy-vline 
WA_EHFNDD_PHYSCHEM_STR-FLOW_TIME_HAS_NO_APPL sy-vline 
WA_EHFNDD_PHYSCHEM_STR-FLOW_TIME_HAS_NO_DATA sy-vline 
WA_EHFNDD_PHYSCHEM_STR-VISCOSITY_DYN_HAS_NO_APPL sy-vline 
WA_EHFNDD_PHYSCHEM_STR-VISCOSITY_DYN_HAS_NO_DATA sy-vline 
WA_EHFNDD_PHYSCHEM_STR-VISCOSITY_KIN_HAS_NO_APPL sy-vline 
WA_EHFNDD_PHYSCHEM_STR-VISCOSITY_KIN_HAS_NO_DATA sy-vline 
WA_EHFNDD_PHYSCHEM_STR-WTR_SLBTY_HAS_NO_APPL sy-vline 
WA_EHFNDD_PHYSCHEM_STR-WTR_SLBTY_HAS_NO_DATA sy-vline 
WA_EHFNDD_PHYSCHEM_STR-PH_SCALE_HAS_NO_APPL sy-vline 
WA_EHFNDD_PHYSCHEM_STR-PH_SCALE_HAS_NO_DATA sy-vline 
WA_EHFNDD_PHYSCHEM_STR-MELTING_POINT_HAS_NO_APPL sy-vline 
WA_EHFNDD_PHYSCHEM_STR-MELTING_POINT_HAS_NO_DATA sy-vline 
WA_EHFNDD_PHYSCHEM_STR-BOILING_POINT_HAS_NO_APPL sy-vline 
WA_EHFNDD_PHYSCHEM_STR-BOILING_POINT_HAS_NO_DATA sy-vline 
WA_EHFNDD_PHYSCHEM_STR-PARTITION_COEFF_HAS_NO_APPL sy-vline 
WA_EHFNDD_PHYSCHEM_STR-PARTITION_COEFF_HAS_NO_DATA sy-vline      INTO ld_text SEPARATED BY SPACE.

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