You can find the following content in the init. ora file in the admin/{Sid}/pfile file:
Audit_file_dest =C:/Oracle/product/10.2.0/admin/orcl/adumpBackground_dump_dest= C:/Oracle/product/10.2.0/admin/orcl/bdumpUser_dump_dest=C:/Oracle/product/10.2.0
Update A. A3 = A. A3 + B. B3
Table A structure: A1, A2, A3Table B structure: B1, B2, B3A1 and B1 are PK, and A1 = B1 can be used if the cut value is the same.
How can I implement the following functions using SQL statements or procedures ???
Install Oracle10g in HPHttp://www.ixpub.net/archiver/tid-467908.htmlInstall Oracle 9.2 under HPHttp://blog.chinaunix.net/u/28815/showart_281067.htmlInstall oracle10gr2 on aix5.3Http://oldboy.itpub.net/post/29104/270188Install oracle10gr2 in
204. How do I obtain the ASCII value of the first character of a string?
ASCII (char)
Select ASCII ('abcde') from dual;
Result: 65
205. How do I get the characters specified by data value n?CHR (N)Select CHR (68) from dual;Result: d
206. How to
9i data dictionary user view.
645. user_all_tables
Description of the table available to the user.
646. user_arguments
Lists the parameters in a user-accessible object.
647. user_associations
User-Defined statistics on the objects owned by the
783. all_all_tables
All Tables accessible to users.
784. all_arguments
All parameters of the object that the user can access.
785. all_associations
User-Defined statistics.
786. all_base_table_mviews
All materialized view information that can be
A DB class is similar to JDBC driver and link configuration.
Package com. Assi;
Import org. Apache. log4j. JDBC. jdbcappender;
Public class dB extends jdbcappender {Public dB (){This. setdriver ("oracle. JDBC. Driver. oracledriver ");This. seturl (
1. retrieve data from multiple tablesSelect table1.column, table2.columnFrom table, Table2Where table1.column1 = table2.column2; -Write join conditions in the WHERE clause-If the same column name appears in multiple tables, you must use the table
Modify the field name in Oracle after Oracle9i
Alter table [Table name] rename column old field name to new field name;
Test:
Desc tbl_menu;Name type nullable default comments------------------------------------------------Menuid number (20)Menuname
Migrate AWR data
Oracle database allows us to transmit AWR data between several databases. This is useful when you want to analyze AWR data on a separate system. To transmitAWR data, you must first extract the AWR snapshot data from the source
Rmthost
ValidExtract
Use the rmthost parameterto:
● Identifya remote system to which the local extract process connects
● Specifythe TCP/IP Port number on that system where the manager process is running
● Controlvarious attributes of the TCP/IP
When you install an application that contains thousands of tables and indexes, if each table and index is initially allocated a 10 MB initialExtent. You will soon realize that if each object needs to allocate 10 MB of disk space during creation, it
Document directory
2.1 wrap
2.2 create_wrapped
Oracle Stored Procedure Encryption
The business secrets we include in Oracle stored procedures are sometimes unwilling to be seen by third-party personnel. They can be achieved through
Oracle Installation notes libxp. so.6: cannot open shared object file
Document category: Database
On the 64-bit operating system redhat5.4, run
/Tmp/OraInstall2010-03-15_10-16-11PM/JRE/1.4.2/lib/i386/libawt. So: libxp. so.6: cannot open shared
Audit is the monitoring and recording of selected user actions. It is usually used:
U reviews suspicious activities. For example, if the data is deleted by an unauthorized user, the security administrator may decide to audit all connections to the
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Permanent Link:
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If you ask an Oracle DBA what is the most difficult to learn about Oracle,
SQL> select 1-(physical. Value-direct. Value-lobs. Value)/logical. value)2 "buffer cache hit ratio"3 from V $ sysstat physical, V $ sysstat direct, V $ sysstat lobs, V $ sysstat logical4 where physical. Name = 'physical reads'5 and direct. Name =
Use of dynamic SQLOracle is actually better than SQL Server, but it is definitely not as powerful as in the legend. This is the true feeling of understanding Oracle these days. It seems that there are so many things that sound more perfect than you
/*************************************** *********Cursor and I
When I was a senior, I was about to start looking for a job. In the crowded talent market, I approached a company that recruited VB programmers with enthusiasm. An uncle asked me, have
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