What does coalescing a tablespace do?
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Answer / guest
A free extent in a dictionary-managed tablespace is made up
of a collection of contiguous free blocks.
When allocating new extents to a tablespace segment, the
database uses the free extent closest in size to the
required extent. In some cases, when segments are dropped,
their extents are deallocated and marked as free, but
adjacent free extents are not immediately recombined into
larger free extents. The result is fragmentation that makes
allocation of larger extents more difficult.
Oracle Database addresses fragmentation in several ways:
When attempting to allocate a new extent for a segment, the
database first tries to find a free extent large enough for
the new extent. Whenever the database cannot find a free
extent that is large enough for the new extent, it
coalesces adjacent free extents in the tablespace and looks
again.
The SMON background process periodically coalesces
neighboring free extents when the PCTINCREASE value for a
tablespace is not zero.
If you set PCTINCREASE=0, no coalescing of free extents
occurs. If you are concerned about the overhead of ongoing
coalesce operations of SMON, an alternative is to set
PCTINCREASE=0, and periodically coalesce free space
manually.
Manually Coalesce any adjacent free extens user this
command:
ALTER TABLESPACE <<TABLESPACENAME>> COALESCE
| Is This Answer Correct ? | 18 Yes | 1 No |
Answer / prashe
Coalescing is only valid for dictionary-managed tablespaces
and de-fragments space by combining neighboring free extents
into large single extents.
| Is This Answer Correct ? | 5 Yes | 5 No |
WHAT ALL DIFFERENT KIND OF FUNCTIONS AVAILABLE WHILE DESIGN UNIVERSES?
My requirement is like in database some defects are present and i need to clean them.To be brief for example every employee should have active assigments.So for those records which are not having status as active or null ,i need to update the roecords using API with the correct value. Client will provide a flat file for the records whch are defected.So i need to run the API for those records (flat file)and update the data in database. So my question is how to handle this requirement.Is there any existing API for this purpose?If yes then please send me the NAME. How to update the records in the database using flatfile. Any pointer will be appreciated.Thanks in advance.
CREATE OR REPLACE procedure XXPROC_OPENINT(errbuf OUT VARCHAR2, retcode OUT VARCHAR2) AS --Cursor Declaration cursor inv_cur IS SELECT INVI.INVOICE_ID ,INVI.INVOICE_TYPE_LOOKUP_CODE ,INVI.INVOICE_DATE ,INVI.VENDOR_ID ,INVI.VENDOR_SITE_ID ,INVI.INVOICE_AMOUNT ,INVI.INVOICE_CURRENCY_CODE ,INVI.STATUS ,INVI.GROUP_ID ,INVI.SOURCE ,INVI.ORG_ID ,INVI.DESCRIPTION ,INVI.CREATION_DATE ,INVI.CREATED_BY ,INVL.INVOICE_ID ,INVL.LINE_NUMBER ,INVL.LINE_TYPE_LOOKUP_CODE ,INVL.DESCRIPTION ,INVL.ORG_ID ,INVL.INVENTORY_ITEM_ID ,INVL.ACCOUNTING_DATE ,INVL.AMOUNT ,INVL.CREATION_DATE ,INVL.CREATED_BY ,INVL.PO_HEADER_ID ,INVL.PO_LINE_LOCATION_ID ,INVL.ITEM_DESCRIPTION FROM XXAP_INVOICES_INTERFACE_STG INVI ,AP_INVOICE_LINES_INTERFACE_STG INVL WHERE INVI.INVOICE_ID=INVL.INVOICE_ID AND INVI.ORG_ID=INVL.ORG_ID; l_currency_code varchar2(25); l_flag varchar2(2); l_error_msg varchar2(100); l_err_msg varchar2(100); l_err_flag varchar2(10); l_count number(9) default 0; BEGIN for rec_cur in inv_cur loop l_count:=l_count+1; --Currency Code Validation BEGIN SELECT currency_code INTO l_currency_code FROM FND_CURRENCIES WHERE currency_code ='USD'; EXCEPTION WHEN others THEN l_flag:='E'; l_error_msg:='Currency Code Does not Exists'; fnd_file.put_line(fnd_file.log,'Inserting Data Into The Interface Table'||'-'||l_count||' '||l_error_msg); END; IF l_flag!='E' THEN fnd_file.put_line(fnd_file.log,'Inserting Data Into The Interface Table'); INSERT INTO AP_INVOICES_INTERFACE( INVOICE_ID ,INVOICE_TYPE_LOOKUP_CODE ,INVOICE_DATE ,VENDOR_ID ,VENDOR_SITE_ID ,INVOICE_AMOUNT ,INVOICE_CURRENCY_CODE ,STATUS ,GROUP_ID ,SOURCE ,ORG_ID ,DESCRIPTION ,CREATION_DATE ,CREATED_BY) VALUES (rec_cur.INVOICE_ID ,rec_cur.INVOICE_TYPE_LOOKUP_CODE ,rec_cur.INVOICE_DATE ,rec_cur.VENDOR_ID ,rec_cur.VENDOR_SITE_ID ,rec_cur.INVOICE_AMOUNT ,rec_cur.INVOICE_CURRENCY_CODE ,rec_cur.STATUS ,rec_cur.GROUP_ID ,rec_cur.SOURCE ,rec_cur.ORG_ID ,rec_cur.DESCRIPTION ,rec_cur.CREATION_DATE ,rec_cur.CREATED_BY); INSERT INTO ap_invoice_lines_interface ( INVOICE_ID ,LINE_NUMBER ,LINE_TYPE_LOOKUP_CODE ,DESCRIPTION ,ORG_ID ,INVENTORY_ITEM_ID ,ACCOUNTING_DATE ,AMOUNT ,CREATION_DATE ,CREATED_BY ,PO_HEADER_ID ,PO_LINE_LOCATION_ID,ITEM_DESCRIPTION) VALUES (rec_cur.INVOICE_ID ,rec_cur.LINE_NUMBER ,rec_cur.LINE_TYPE_LOOKUP_CODE ,rec_cur.DESCRIPTION ,rec_cur.ORG_ID ,rec_cur.INVENTORY_ITEM_ID ,rec_cur.ACCOUNTING_DATE ,rec_cur.AMOUNT ,rec_cur.CREATION_DATE ,rec_cur.CREATED_BY ,rec_cur.PO_HEADER_ID ,rec_cur.PO_LINE_LOCATION_ID ,rec_cur.ITEM_DESCRIPTION); END IF; l_flag:=NULL; l_err_MSG:=NULL; END LOOP; COMMIT; END XXPROC_OPENINT; / PLS-00402: alias required in SELECT list of cursor to avoid duplicate column names
why r u using etl tool.
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