ABAP Select data from SAP table SYB_XCHG_TXNLOGUSAGE 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 SYB_XCHG_TXNLOGUSAGE 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 SYB_XCHG_TXNLOGUSAGE. 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 SYB_XCHG_TXNLOGUSAGE 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_SYB_XCHG_TXNLOGUSAGE TYPE STANDARD TABLE OF SYB_XCHG_TXNLOGUSAGE,
      WA_SYB_XCHG_TXNLOGUSAGE TYPE SYB_XCHG_TXNLOGUSAGE,
      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: <SYB_XCHG_TXNLOGUSAGE> TYPE SYB_XCHG_TXNLOGUSAGE.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SYB_XCHG_TXNLOGUSAGE
*  INTO TABLE @DATA(IT_SYB_XCHG_TXNLOGUSAGE2).
*--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_SYB_XCHG_TXNLOGUSAGE INDEX 1 INTO DATA(WA_SYB_XCHG_TXNLOGUSAGE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SYB_XCHG_TXNLOGUSAGE>-DATABASE = 1.
<SYB_XCHG_TXNLOGUSAGE>-DBID = 1.
<SYB_XCHG_TXNLOGUSAGE>-DBNAME = 1.
<SYB_XCHG_TXNLOGUSAGE>-CHECKPOINT_DATE = 1.
<SYB_XCHG_TXNLOGUSAGE>-UNTIL_TIME_DATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SYB_XCHG_TXNLOGUSAGE-DB_HAS_ACTIVE_TXN, sy-vline,
  WA_SYB_XCHG_TXNLOGUSAGE-IS_STP_BLOCKING_DUMP, sy-vline,
  WA_SYB_XCHG_TXNLOGUSAGE-DUMP_CAN_FREE_PCT, sy-vline,
  WA_SYB_XCHG_TXNLOGUSAGE-OAT_SPID, sy-vline,
  WA_SYB_XCHG_TXNLOGUSAGE-OAT_SPAN_PCT, sy-vline,
  WA_SYB_XCHG_TXNLOGUSAGE-OAT_RUNTIME_SEC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SYB_XCHG_TXNLOGUSAGE 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_SYB_XCHG_TXNLOGUSAGE 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_SYB_XCHG_TXNLOGUSAGE INTO WA_SYB_XCHG_TXNLOGUSAGE.


*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_SYB_XCHG_TXNLOGUSAGE_STR, 
DATABASE TYPE STRING,
DBID TYPE STRING,
DBNAME TYPE STRING,
CHECKPOINT_DATE TYPE STRING,
UNTIL_TIME_DATE TYPE STRING,
DB_HAS_ACTIVE_TXN TYPE STRING,
IS_STP_BLOCKING_DUMP TYPE STRING,
DUMP_CAN_FREE_PCT TYPE STRING,
OAT_SPID TYPE STRING,
OAT_SPAN_PCT TYPE STRING,
OAT_RUNTIME_SEC TYPE STRING,
OAT_DATE TYPE STRING,
OAT_APPLICATION TYPE STRING,
OAT_CLIENTAPPLNAME TYPE STRING,
OAT_CLIENTHOST TYPE STRING,
OAT_CLIENTHOSTNAME TYPE STRING,
OAT_CLIENTIP TYPE STRING,
OAT_CLIENTNAME TYPE STRING,
OAT_CLIENTOSPID TYPE STRING,
OAT_LOGIN TYPE STRING,
OAT_STATE TYPE STRING,
OAT_STMTDBID TYPE STRING,
OAT_STMTPROCEDUREID TYPE STRING,
OAT_STMTSQLTEXT TYPE STRING,
OAT_STMTSTARTTIME TYPE STRING,
LOG_TOTAL_MB TYPE STRING,
LOG_RESERVED_MB TYPE STRING,
LOG_ACTIVE_MB TYPE STRING,
LOG_INACTIVE_MB TYPE STRING,
LOG_STP_MB TYPE STRING,
STP_SPAN_PCT TYPE STRING,
SNAPSHOT_TIMESTAMP TYPE STRING,
TIMESTAMP TYPE STRING,
TIME_PERIOD TYPE STRING,
SOURCE_HOSTNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SYB_XCHG_TXNLOGUSAGE_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_SYB_XCHG_TXNLOGUSAGE_STR-DATABASE sy-vline 
WA_SYB_XCHG_TXNLOGUSAGE_STR-DBID sy-vline 
WA_SYB_XCHG_TXNLOGUSAGE_STR-DBNAME sy-vline 
WA_SYB_XCHG_TXNLOGUSAGE_STR-CHECKPOINT_DATE sy-vline 
WA_SYB_XCHG_TXNLOGUSAGE_STR-UNTIL_TIME_DATE sy-vline 
WA_SYB_XCHG_TXNLOGUSAGE_STR-DB_HAS_ACTIVE_TXN sy-vline 
WA_SYB_XCHG_TXNLOGUSAGE_STR-IS_STP_BLOCKING_DUMP sy-vline 
WA_SYB_XCHG_TXNLOGUSAGE_STR-DUMP_CAN_FREE_PCT sy-vline 
WA_SYB_XCHG_TXNLOGUSAGE_STR-OAT_SPID sy-vline 
WA_SYB_XCHG_TXNLOGUSAGE_STR-OAT_SPAN_PCT sy-vline 
WA_SYB_XCHG_TXNLOGUSAGE_STR-OAT_RUNTIME_SEC sy-vline 
WA_SYB_XCHG_TXNLOGUSAGE_STR-OAT_DATE sy-vline 
WA_SYB_XCHG_TXNLOGUSAGE_STR-OAT_APPLICATION sy-vline 
WA_SYB_XCHG_TXNLOGUSAGE_STR-OAT_CLIENTAPPLNAME sy-vline 
WA_SYB_XCHG_TXNLOGUSAGE_STR-OAT_CLIENTHOST sy-vline 
WA_SYB_XCHG_TXNLOGUSAGE_STR-OAT_CLIENTHOSTNAME sy-vline 
WA_SYB_XCHG_TXNLOGUSAGE_STR-OAT_CLIENTIP sy-vline 
WA_SYB_XCHG_TXNLOGUSAGE_STR-OAT_CLIENTNAME sy-vline 
WA_SYB_XCHG_TXNLOGUSAGE_STR-OAT_CLIENTOSPID sy-vline 
WA_SYB_XCHG_TXNLOGUSAGE_STR-OAT_LOGIN sy-vline 
WA_SYB_XCHG_TXNLOGUSAGE_STR-OAT_STATE sy-vline 
WA_SYB_XCHG_TXNLOGUSAGE_STR-OAT_STMTDBID sy-vline 
WA_SYB_XCHG_TXNLOGUSAGE_STR-OAT_STMTPROCEDUREID sy-vline 
WA_SYB_XCHG_TXNLOGUSAGE_STR-OAT_STMTSQLTEXT sy-vline 
WA_SYB_XCHG_TXNLOGUSAGE_STR-OAT_STMTSTARTTIME sy-vline 
WA_SYB_XCHG_TXNLOGUSAGE_STR-LOG_TOTAL_MB sy-vline 
WA_SYB_XCHG_TXNLOGUSAGE_STR-LOG_RESERVED_MB sy-vline 
WA_SYB_XCHG_TXNLOGUSAGE_STR-LOG_ACTIVE_MB sy-vline 
WA_SYB_XCHG_TXNLOGUSAGE_STR-LOG_INACTIVE_MB sy-vline 
WA_SYB_XCHG_TXNLOGUSAGE_STR-LOG_STP_MB sy-vline 
WA_SYB_XCHG_TXNLOGUSAGE_STR-STP_SPAN_PCT sy-vline 
WA_SYB_XCHG_TXNLOGUSAGE_STR-SNAPSHOT_TIMESTAMP sy-vline 
WA_SYB_XCHG_TXNLOGUSAGE_STR-TIMESTAMP sy-vline 
WA_SYB_XCHG_TXNLOGUSAGE_STR-TIME_PERIOD sy-vline 
WA_SYB_XCHG_TXNLOGUSAGE_STR-SOURCE_HOSTNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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