ABAP Select data from SAP table GORASESSION_SEL_ST04 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP GORASESSION_SEL_ST04 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 GORASESSION_SEL_ST04. 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 GORASESSION_SEL_ST04 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_GORASESSION_SEL_ST04 TYPE STANDARD TABLE OF GORASESSION_SEL_ST04,
      WA_GORASESSION_SEL_ST04 TYPE GORASESSION_SEL_ST04,
      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: <GORASESSION_SEL_ST04> TYPE GORASESSION_SEL_ST04.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_GORASESSION_SEL_ST04.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM GORASESSION_SEL_ST04
  INTO TABLE IT_GORASESSION_SEL_ST04.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GORASESSION_SEL_ST04
*  INTO TABLE @DATA(IT_GORASESSION_SEL_ST042).
*--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_GORASESSION_SEL_ST04 INDEX 1 INTO DATA(WA_GORASESSION_SEL_ST042).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_GORASESSION_SEL_ST04 ASSIGNING <GORASESSION_SEL_ST04>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GORASESSION_SEL_ST04>-INST_ID = 1.
<GORASESSION_SEL_ST04>-SID = 1.
<GORASESSION_SEL_ST04>-PADDR = 1.
<GORASESSION_SEL_ST04>-USERNAME = 1.
<GORASESSION_SEL_ST04>-SQL_ADDRESS = 1.

ENDLOOP.

LOOP AT IT_GORASESSION_SEL_ST04 INTO WA_GORASESSION_SEL_ST04.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GORASESSION_SEL_ST04-SQL_HASH_VALUE, sy-vline,
  WA_GORASESSION_SEL_ST04-SPID, sy-vline,
  WA_GORASESSION_SEL_ST04-PROCPROG, sy-vline,
  WA_GORASESSION_SEL_ST04-PROCESS, sy-vline,
  WA_GORASESSION_SEL_ST04-MACHINE, sy-vline,
  WA_GORASESSION_SEL_ST04-PROGRAM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GORASESSION_SEL_ST04 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_GORASESSION_SEL_ST04 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_GORASESSION_SEL_ST04 INTO WA_GORASESSION_SEL_ST04.


*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_GORASESSION_SEL_ST04_STR, 
INST_ID TYPE STRING,
SID TYPE STRING,
PADDR TYPE STRING,
USERNAME TYPE STRING,
SQL_ADDRESS TYPE STRING,
SQL_HASH_VALUE TYPE STRING,
SPID TYPE STRING,
PROCPROG TYPE STRING,
PROCESS TYPE STRING,
MACHINE TYPE STRING,
PROGRAM TYPE STRING,
COMMAND TYPE STRING,
STATUS TYPE STRING,
TYPE TYPE STRING,
EVENT TYPE STRING,
WAIT_TIME TYPE STRING,
SECONDS_IN_WAIT TYPE STRING,
P1TEXT TYPE STRING,
P1 TYPE STRING,
P2TEXT TYPE STRING,
P2 TYPE STRING,
P3TEXT TYPE STRING,
P3 TYPE STRING,
BLOCK_GETS TYPE STRING,
CONSISTENT_GETS TYPE STRING,
LOGICAL_READS TYPE STRING,
PHYSICAL_READS TYPE STRING,
BLOCK_CHANGES TYPE STRING,
CONSISTENT_CHANGES TYPE STRING,
SQL_TEXT TYPE STRING,
TRANS_STATUS TYPE STRING,
START_TIME TYPE STRING,
START_SCNB TYPE STRING,
START_UEXT TYPE STRING,
START_UBAFIL TYPE STRING,
START_UBABLK TYPE STRING,
START_UBASQN TYPE STRING,
START_UBAREC TYPE STRING,
UBAFIL TYPE STRING,
UBABLK TYPE STRING,
UBASQN TYPE STRING,
UBAREC TYPE STRING,
XIDUSN TYPE STRING,
XIDSLOT TYPE STRING,
XIDSQN TYPE STRING,
DBSERVER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GORASESSION_SEL_ST04_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_GORASESSION_SEL_ST04_STR-INST_ID sy-vline 
WA_GORASESSION_SEL_ST04_STR-SID sy-vline 
WA_GORASESSION_SEL_ST04_STR-PADDR sy-vline 
WA_GORASESSION_SEL_ST04_STR-USERNAME sy-vline 
WA_GORASESSION_SEL_ST04_STR-SQL_ADDRESS sy-vline 
WA_GORASESSION_SEL_ST04_STR-SQL_HASH_VALUE sy-vline 
WA_GORASESSION_SEL_ST04_STR-SPID sy-vline 
WA_GORASESSION_SEL_ST04_STR-PROCPROG sy-vline 
WA_GORASESSION_SEL_ST04_STR-PROCESS sy-vline 
WA_GORASESSION_SEL_ST04_STR-MACHINE sy-vline 
WA_GORASESSION_SEL_ST04_STR-PROGRAM sy-vline 
WA_GORASESSION_SEL_ST04_STR-COMMAND sy-vline 
WA_GORASESSION_SEL_ST04_STR-STATUS sy-vline 
WA_GORASESSION_SEL_ST04_STR-TYPE sy-vline 
WA_GORASESSION_SEL_ST04_STR-EVENT sy-vline 
WA_GORASESSION_SEL_ST04_STR-WAIT_TIME sy-vline 
WA_GORASESSION_SEL_ST04_STR-SECONDS_IN_WAIT sy-vline 
WA_GORASESSION_SEL_ST04_STR-P1TEXT sy-vline 
WA_GORASESSION_SEL_ST04_STR-P1 sy-vline 
WA_GORASESSION_SEL_ST04_STR-P2TEXT sy-vline 
WA_GORASESSION_SEL_ST04_STR-P2 sy-vline 
WA_GORASESSION_SEL_ST04_STR-P3TEXT sy-vline 
WA_GORASESSION_SEL_ST04_STR-P3 sy-vline 
WA_GORASESSION_SEL_ST04_STR-BLOCK_GETS sy-vline 
WA_GORASESSION_SEL_ST04_STR-CONSISTENT_GETS sy-vline 
WA_GORASESSION_SEL_ST04_STR-LOGICAL_READS sy-vline 
WA_GORASESSION_SEL_ST04_STR-PHYSICAL_READS sy-vline 
WA_GORASESSION_SEL_ST04_STR-BLOCK_CHANGES sy-vline 
WA_GORASESSION_SEL_ST04_STR-CONSISTENT_CHANGES sy-vline 
WA_GORASESSION_SEL_ST04_STR-SQL_TEXT sy-vline 
WA_GORASESSION_SEL_ST04_STR-TRANS_STATUS sy-vline 
WA_GORASESSION_SEL_ST04_STR-START_TIME sy-vline 
WA_GORASESSION_SEL_ST04_STR-START_SCNB sy-vline 
WA_GORASESSION_SEL_ST04_STR-START_UEXT sy-vline 
WA_GORASESSION_SEL_ST04_STR-START_UBAFIL sy-vline 
WA_GORASESSION_SEL_ST04_STR-START_UBABLK sy-vline 
WA_GORASESSION_SEL_ST04_STR-START_UBASQN sy-vline 
WA_GORASESSION_SEL_ST04_STR-START_UBAREC sy-vline 
WA_GORASESSION_SEL_ST04_STR-UBAFIL sy-vline 
WA_GORASESSION_SEL_ST04_STR-UBABLK sy-vline 
WA_GORASESSION_SEL_ST04_STR-UBASQN sy-vline 
WA_GORASESSION_SEL_ST04_STR-UBAREC sy-vline 
WA_GORASESSION_SEL_ST04_STR-XIDUSN sy-vline 
WA_GORASESSION_SEL_ST04_STR-XIDSLOT sy-vline 
WA_GORASESSION_SEL_ST04_STR-XIDSQN sy-vline 
WA_GORASESSION_SEL_ST04_STR-DBSERVER sy-vline      INTO ld_text SEPARATED BY SPACE.

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