ABAP Select data from SAP table EHS00S_EXA_PUL into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP EHS00S_EXA_PUL 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 EHS00S_EXA_PUL. 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 EHS00S_EXA_PUL 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_EHS00S_EXA_PUL TYPE STANDARD TABLE OF EHS00S_EXA_PUL,
      WA_EHS00S_EXA_PUL TYPE EHS00S_EXA_PUL,
      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: <EHS00S_EXA_PUL> TYPE EHS00S_EXA_PUL.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_EHS00S_EXA_PUL.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM EHS00S_EXA_PUL
  INTO TABLE IT_EHS00S_EXA_PUL.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EHS00S_EXA_PUL
*  INTO TABLE @DATA(IT_EHS00S_EXA_PUL2).
*--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_EHS00S_EXA_PUL INDEX 1 INTO DATA(WA_EHS00S_EXA_PUL2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_EHS00S_EXA_PUL ASSIGNING <EHS00S_EXA_PUL>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EHS00S_EXA_PUL>-MANDT = 1.
<EHS00S_EXA_PUL>-SRV_NUMBER = 1.
<EHS00S_EXA_PUL>-EXAM_GROUP = 1.
<EHS00S_EXA_PUL>-EXAM_CODE = 1.
<EHS00S_EXA_PUL>-EXAM_COUNT = 1.

ENDLOOP.

LOOP AT IT_EHS00S_EXA_PUL INTO WA_EHS00S_EXA_PUL.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EHS00S_EXA_PUL-TEST_NO, sy-vline,
  WA_EHS00S_EXA_PUL-FEV1_OBS, sy-vline,
  WA_EHS00S_EXA_PUL-FEV1_PRD, sy-vline,
  WA_EHS00S_EXA_PUL-FVC_OBS, sy-vline,
  WA_EHS00S_EXA_PUL-FVC_PRD, sy-vline,
  WA_EHS00S_EXA_PUL-FEV1_FVC_PCTOBS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EHS00S_EXA_PUL 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_EHS00S_EXA_PUL 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_EHS00S_EXA_PUL INTO WA_EHS00S_EXA_PUL.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_EHS00S_EXA_PUL_STR, 
MANDT TYPE STRING,
SRV_NUMBER TYPE STRING,
EXAM_GROUP TYPE STRING,
EXAM_CODE TYPE STRING,
EXAM_COUNT TYPE STRING,
TEST_NO TYPE STRING,
FEV1_OBS TYPE STRING,
FEV1_PRD TYPE STRING,
FVC_OBS TYPE STRING,
FVC_PRD TYPE STRING,
FEV1_FVC_PCTOBS TYPE STRING,
FEV1_PCT TYPE STRING,
FVC_PCT TYPE STRING,
PEAK_FLOW TYPE STRING,
PUL_MASCHINENO TYPE STRING,
PUL_SOFTWARE TYPE STRING,
PUL_PRED_EQU TYPE STRING,
UNAME TYPE STRING,
AEDTM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EHS00S_EXA_PUL_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_EHS00S_EXA_PUL_STR-MANDT sy-vline 
WA_EHS00S_EXA_PUL_STR-SRV_NUMBER sy-vline 
WA_EHS00S_EXA_PUL_STR-EXAM_GROUP sy-vline 
WA_EHS00S_EXA_PUL_STR-EXAM_CODE sy-vline 
WA_EHS00S_EXA_PUL_STR-EXAM_COUNT sy-vline 
WA_EHS00S_EXA_PUL_STR-TEST_NO sy-vline 
WA_EHS00S_EXA_PUL_STR-FEV1_OBS sy-vline 
WA_EHS00S_EXA_PUL_STR-FEV1_PRD sy-vline 
WA_EHS00S_EXA_PUL_STR-FVC_OBS sy-vline 
WA_EHS00S_EXA_PUL_STR-FVC_PRD sy-vline 
WA_EHS00S_EXA_PUL_STR-FEV1_FVC_PCTOBS sy-vline 
WA_EHS00S_EXA_PUL_STR-FEV1_PCT sy-vline 
WA_EHS00S_EXA_PUL_STR-FVC_PCT sy-vline 
WA_EHS00S_EXA_PUL_STR-PEAK_FLOW sy-vline 
WA_EHS00S_EXA_PUL_STR-PUL_MASCHINENO sy-vline 
WA_EHS00S_EXA_PUL_STR-PUL_SOFTWARE sy-vline 
WA_EHS00S_EXA_PUL_STR-PUL_PRED_EQU sy-vline 
WA_EHS00S_EXA_PUL_STR-UNAME sy-vline 
WA_EHS00S_EXA_PUL_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.