ABAP Select data from SAP table EHS_EXA_AUD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EHS_EXA_AUD
*  INTO TABLE @DATA(IT_EHS_EXA_AUD2).
*--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_EHS_EXA_AUD INDEX 1 INTO DATA(WA_EHS_EXA_AUD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EHS_EXA_AUD>-MANDT = 1.
<EHS_EXA_AUD>-SRV_NUMBER = 1.
<EHS_EXA_AUD>-EXAM_GROUP = 1.
<EHS_EXA_AUD>-EXAM_CODE = 1.
<EHS_EXA_AUD>-EXAM_COUNT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EHS_EXA_AUD-TEST_NO, sy-vline,
  WA_EHS_EXA_AUD-PERNR, sy-vline,
  WA_EHS_EXA_AUD-AUDIO_BASEIND, sy-vline,
  WA_EHS_EXA_AUD-ASYLOWFREQ_HL, sy-vline,
  WA_EHS_EXA_AUD-ASYHIGHFREQ_HL, sy-vline,
  WA_EHS_EXA_AUD-LOWFREQ_HL_L, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EHS_EXA_AUD 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_EHS_EXA_AUD 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_EHS_EXA_AUD INTO WA_EHS_EXA_AUD.


*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 TECHNICIAN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EHS_EXA_AUD-TECHNICIAN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHS_EXA_AUD-TECHNICIAN.
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_EHS_EXA_AUD_STR, 
MANDT TYPE STRING,
SRV_NUMBER TYPE STRING,
EXAM_GROUP TYPE STRING,
EXAM_CODE TYPE STRING,
EXAM_COUNT TYPE STRING,
TEST_NO TYPE STRING,
PERNR TYPE STRING,
AUDIO_BASEIND TYPE STRING,
ASYLOWFREQ_HL TYPE STRING,
ASYHIGHFREQ_HL TYPE STRING,
LOWFREQ_HL_L TYPE STRING,
STS_L TYPE STRING,
ETS_L TYPE STRING,
POT_HL_L TYPE STRING,
DB_L00500HZ TYPE STRING,
DB_L01000HZ TYPE STRING,
DB_L02000HZ TYPE STRING,
DB_L03000HZ TYPE STRING,
DB_L04000HZ TYPE STRING,
DB_L06000HZ TYPE STRING,
DB_L08000HZ TYPE STRING,
LOWFREQ_HL_R TYPE STRING,
STS_R TYPE STRING,
ETS_R TYPE STRING,
POT_HL_R TYPE STRING,
DB_R00500HZ TYPE STRING,
DB_R01000HZ TYPE STRING,
DB_R02000HZ TYPE STRING,
DB_R03000HZ TYPE STRING,
DB_R04000HZ TYPE STRING,
DB_R06000HZ TYPE STRING,
DB_R08000HZ TYPE STRING,
AUDIO_MASCHINE TYPE STRING,
AUDIO_SOFTWARE TYPE STRING,
TECHNICIAN TYPE STRING,
TECHFLAG TYPE STRING,
UNAME TYPE STRING,
AEDTM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EHS_EXA_AUD_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_EHS_EXA_AUD_STR-MANDT sy-vline 
WA_EHS_EXA_AUD_STR-SRV_NUMBER sy-vline 
WA_EHS_EXA_AUD_STR-EXAM_GROUP sy-vline 
WA_EHS_EXA_AUD_STR-EXAM_CODE sy-vline 
WA_EHS_EXA_AUD_STR-EXAM_COUNT sy-vline 
WA_EHS_EXA_AUD_STR-TEST_NO sy-vline 
WA_EHS_EXA_AUD_STR-PERNR sy-vline 
WA_EHS_EXA_AUD_STR-AUDIO_BASEIND sy-vline 
WA_EHS_EXA_AUD_STR-ASYLOWFREQ_HL sy-vline 
WA_EHS_EXA_AUD_STR-ASYHIGHFREQ_HL sy-vline 
WA_EHS_EXA_AUD_STR-LOWFREQ_HL_L sy-vline 
WA_EHS_EXA_AUD_STR-STS_L sy-vline 
WA_EHS_EXA_AUD_STR-ETS_L sy-vline 
WA_EHS_EXA_AUD_STR-POT_HL_L sy-vline 
WA_EHS_EXA_AUD_STR-DB_L00500HZ sy-vline 
WA_EHS_EXA_AUD_STR-DB_L01000HZ sy-vline 
WA_EHS_EXA_AUD_STR-DB_L02000HZ sy-vline 
WA_EHS_EXA_AUD_STR-DB_L03000HZ sy-vline 
WA_EHS_EXA_AUD_STR-DB_L04000HZ sy-vline 
WA_EHS_EXA_AUD_STR-DB_L06000HZ sy-vline 
WA_EHS_EXA_AUD_STR-DB_L08000HZ sy-vline 
WA_EHS_EXA_AUD_STR-LOWFREQ_HL_R sy-vline 
WA_EHS_EXA_AUD_STR-STS_R sy-vline 
WA_EHS_EXA_AUD_STR-ETS_R sy-vline 
WA_EHS_EXA_AUD_STR-POT_HL_R sy-vline 
WA_EHS_EXA_AUD_STR-DB_R00500HZ sy-vline 
WA_EHS_EXA_AUD_STR-DB_R01000HZ sy-vline 
WA_EHS_EXA_AUD_STR-DB_R02000HZ sy-vline 
WA_EHS_EXA_AUD_STR-DB_R03000HZ sy-vline 
WA_EHS_EXA_AUD_STR-DB_R04000HZ sy-vline 
WA_EHS_EXA_AUD_STR-DB_R06000HZ sy-vline 
WA_EHS_EXA_AUD_STR-DB_R08000HZ sy-vline 
WA_EHS_EXA_AUD_STR-AUDIO_MASCHINE sy-vline 
WA_EHS_EXA_AUD_STR-AUDIO_SOFTWARE sy-vline 
WA_EHS_EXA_AUD_STR-TECHNICIAN sy-vline 
WA_EHS_EXA_AUD_STR-TECHFLAG sy-vline 
WA_EHS_EXA_AUD_STR-UNAME sy-vline 
WA_EHS_EXA_AUD_STR-AEDTM sy-vline      INTO ld_text SEPARATED BY SPACE.

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