ABAP Select data from SAP table WSALPERFVAL into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WSALPERFVAL
*  INTO TABLE @DATA(IT_WSALPERFVAL2).
*--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_WSALPERFVAL INDEX 1 INTO DATA(WA_WSALPERFVAL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WSALPERFVAL>-CONTROLLER = 1.
<WSALPERFVAL>-PERF_TOTAL_HIGH = 1.
<WSALPERFVAL>-PERF_TOTAL_LOW = 1.
<WSALPERFVAL>-PERF_COUNT_HIGH = 1.
<WSALPERFVAL>-PERF_COUNT_LOW = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WSALPERFVAL-ALERT_RELEVANT_VALUE, sy-vline,
  WA_WSALPERFVAL-ALERT_RELEVANT_DATE, sy-vline,
  WA_WSALPERFVAL-ALERT_RELEVANT_TIME, sy-vline,
  WA_WSALPERFVAL-LAST_ALERT_STATUS, sy-vline,
  WA_WSALPERFVAL-LAST_PERF_VALUE, sy-vline,
  WA_WSALPERFVAL-AVG00PERF_VALUE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WSALPERFVAL 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_WSALPERFVAL 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_WSALPERFVAL INTO WA_WSALPERFVAL.


*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_WSALPERFVAL_STR, 
CONTROLLER TYPE STRING,
PERF_TOTAL_HIGH TYPE STRING,
PERF_TOTAL_LOW TYPE STRING,
PERF_COUNT_HIGH TYPE STRING,
PERF_COUNT_LOW TYPE STRING,
ALERT_RELEVANT_VALUE TYPE STRING,
ALERT_RELEVANT_DATE TYPE STRING,
ALERT_RELEVANT_TIME TYPE STRING,
LAST_ALERT_STATUS TYPE STRING,
LAST_PERF_VALUE TYPE STRING,
AVG00PERF_VALUE TYPE STRING,
AVG01PERF_VALUE TYPE STRING,
AVG05PERF_VALUE TYPE STRING,
AVG15PERF_VALUE TYPE STRING,
AVG01SUM_VALUE TYPE STRING,
AVG05SUM_VALUE TYPE STRING,
AVG15SUM_VALUE TYPE STRING,
AVG01COUNT_VALUE TYPE STRING,
AVG05COUNT_VALUE TYPE STRING,
AVG15COUNT_VALUE TYPE STRING,
MAX_PERF_VALUE_SEEN TYPE STRING,
MAX_PERF_VALUE_DATE TYPE STRING,
MAX_PERF_VALUE_TIME TYPE STRING,
MIN_PERF_VALUE_SEEN TYPE STRING,
MIN_PERF_VALUE_DATE TYPE STRING,
MIN_PERF_VALUE_TIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WSALPERFVAL_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_WSALPERFVAL_STR-CONTROLLER sy-vline 
WA_WSALPERFVAL_STR-PERF_TOTAL_HIGH sy-vline 
WA_WSALPERFVAL_STR-PERF_TOTAL_LOW sy-vline 
WA_WSALPERFVAL_STR-PERF_COUNT_HIGH sy-vline 
WA_WSALPERFVAL_STR-PERF_COUNT_LOW sy-vline 
WA_WSALPERFVAL_STR-ALERT_RELEVANT_VALUE sy-vline 
WA_WSALPERFVAL_STR-ALERT_RELEVANT_DATE sy-vline 
WA_WSALPERFVAL_STR-ALERT_RELEVANT_TIME sy-vline 
WA_WSALPERFVAL_STR-LAST_ALERT_STATUS sy-vline 
WA_WSALPERFVAL_STR-LAST_PERF_VALUE sy-vline 
WA_WSALPERFVAL_STR-AVG00PERF_VALUE sy-vline 
WA_WSALPERFVAL_STR-AVG01PERF_VALUE sy-vline 
WA_WSALPERFVAL_STR-AVG05PERF_VALUE sy-vline 
WA_WSALPERFVAL_STR-AVG15PERF_VALUE sy-vline 
WA_WSALPERFVAL_STR-AVG01SUM_VALUE sy-vline 
WA_WSALPERFVAL_STR-AVG05SUM_VALUE sy-vline 
WA_WSALPERFVAL_STR-AVG15SUM_VALUE sy-vline 
WA_WSALPERFVAL_STR-AVG01COUNT_VALUE sy-vline 
WA_WSALPERFVAL_STR-AVG05COUNT_VALUE sy-vline 
WA_WSALPERFVAL_STR-AVG15COUNT_VALUE sy-vline 
WA_WSALPERFVAL_STR-MAX_PERF_VALUE_SEEN sy-vline 
WA_WSALPERFVAL_STR-MAX_PERF_VALUE_DATE sy-vline 
WA_WSALPERFVAL_STR-MAX_PERF_VALUE_TIME sy-vline 
WA_WSALPERFVAL_STR-MIN_PERF_VALUE_SEEN sy-vline 
WA_WSALPERFVAL_STR-MIN_PERF_VALUE_DATE sy-vline 
WA_WSALPERFVAL_STR-MIN_PERF_VALUE_TIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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