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      C:\>lsnrctl status
      LSNRCTL for 32-bit Windows: Version 9.2.0.1.0 - Production on 30-6ÔÂ -2009 21:08
      :04
      Copyright (c) 1991, 2002, Oracle Corporation. All rights reserved.
      ÕýÔÚÁ¬½Óµ½ (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1)))
      TNS-12541: TNS£ºÎÞ¼àÌýÆ÷
      TNS-12560: TNS: ЭÒéÊÊÅäÆ÷´íÎó
      TNS-00511: ÎÞ¼àÌýÆ÷
      32-bit Windows Error: 2: No such file or directory
      ÕýÔÚÁ¬½Óµ½ (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=www-7f628f1510d)(PORT=1521)
      ))
      TNS-12541: TNS£ºÎÞ¼àÌýÆ÷
      TNS-12560: TNS: ЭÒéÊÊÅäÆ÷´íÎó
      TNS-00511: ÎÞ¼àÌýÆ÷
      32-bit Windows Error: 61: Unknown error
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      C:\>sqlplus /nolog
      SQL*Plus: Release 9.2.0.1.0 - Production on ÐÇÆÚ¶þ 6ÔÂ 30 21:10:24 2009
      Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
      SQL> conn scott/tiger@oradb
      ERROR:
      ORA-12541: TNS: ûÓмàÌýÆ÷
      SQL> exit;
      £­£­Èç¹ûûÓÐÆô¶¯ORACLE·þÎñµÄ»°£¬½«³öÏÖÏÂÃæµÄ´íÎó¶ø²»ÊÇÉÏÃæ£º ERROR: ORA-12560: TNS: ЭÒéÊÊÅäÆ÷´íÎó
      C:\>sqlplus "/as sysdba"
      SQL*Plus: Release 9.2.0.1.0 - Production on ÐÇÆÚ¶þ 6ÔÂ 30 21:14:17 2009
      Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
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1.creating function-based indexes
sql> create index summit.item_quantity on summit.item(quantity-quantity_shipped);
 
2.create a B-tree index
sql> create [unique] index index_name on table_name(column,.. asc/desc) tablespace
sql> tablespace_name [pctfree integer] ......
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