ABAP Select data from SAP table EWJOBSIO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EWJOBSIO
*  INTO TABLE @DATA(IT_EWJOBSIO2).
*--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_EWJOBSIO INDEX 1 INTO DATA(WA_EWJOBSIO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EWJOBSIO>-ACTIVE = 1.
<EWJOBSIO>-DESCRIPTN = 1.
<EWJOBSIO>-DAY = 1.
<EWJOBSIO>-TIME = 1.
<EWJOBSIO>-NEXT_RUN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EWJOBSIO-PERIOD, sy-vline,
  WA_EWJOBSIO-LAST_RUN_D, sy-vline,
  WA_EWJOBSIO-LAST_RUN_T, sy-vline,
  WA_EWJOBSIO-MODE, sy-vline,
  WA_EWJOBSIO-COMPUTE, sy-vline,
  WA_EWJOBSIO-ESTIMATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EWJOBSIO 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_EWJOBSIO 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_EWJOBSIO INTO WA_EWJOBSIO.


*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_EWJOBSIO_STR, 
ACTIVE TYPE STRING,
DESCRIPTN TYPE STRING,
DAY TYPE STRING,
TIME TYPE STRING,
NEXT_RUN TYPE STRING,
PERIOD TYPE STRING,
LAST_RUN_D TYPE STRING,
LAST_RUN_T TYPE STRING,
MODE TYPE STRING,
COMPUTE TYPE STRING,
ESTIMATE TYPE STRING,
COUNTROWS TYPE STRING,
LEVEL TYPE STRING,
LOW TYPE STRING,
MEDIUM TYPE STRING,
HIGH TYPE STRING,
THRESHHOLD TYPE STRING,
LOGFILE TYPE STRING,
TIME2 TYPE STRING,
DESCRIPTN2 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EWJOBSIO_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_EWJOBSIO_STR-ACTIVE sy-vline 
WA_EWJOBSIO_STR-DESCRIPTN sy-vline 
WA_EWJOBSIO_STR-DAY sy-vline 
WA_EWJOBSIO_STR-TIME sy-vline 
WA_EWJOBSIO_STR-NEXT_RUN sy-vline 
WA_EWJOBSIO_STR-PERIOD sy-vline 
WA_EWJOBSIO_STR-LAST_RUN_D sy-vline 
WA_EWJOBSIO_STR-LAST_RUN_T sy-vline 
WA_EWJOBSIO_STR-MODE sy-vline 
WA_EWJOBSIO_STR-COMPUTE sy-vline 
WA_EWJOBSIO_STR-ESTIMATE sy-vline 
WA_EWJOBSIO_STR-COUNTROWS sy-vline 
WA_EWJOBSIO_STR-LEVEL sy-vline 
WA_EWJOBSIO_STR-LOW sy-vline 
WA_EWJOBSIO_STR-MEDIUM sy-vline 
WA_EWJOBSIO_STR-HIGH sy-vline 
WA_EWJOBSIO_STR-THRESHHOLD sy-vline 
WA_EWJOBSIO_STR-LOGFILE sy-vline 
WA_EWJOBSIO_STR-TIME2 sy-vline 
WA_EWJOBSIO_STR-DESCRIPTN2 sy-vline      INTO ld_text SEPARATED BY SPACE.

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