The 10 Gb archive log of Oracle Database is stored in flash_recovery_area by default, and 1 GB is selected during the default installation.
When the archiving log exceeds 1 GB, the space is insufficient, so the archive log file cannot be archived.
1. Kill sessions in batchesSelect Concat ('alter system kill session ''', Concat (SID, ','), serial #),''';')) from v $ session where username = 'Scott'An alter system kill session 'sid, serial 'is generated.
2. Find the process corresponding to
Exp encountered ORA-06552 error solution (PLS-553: Character Set Name is not recognized) There is a built data, Oracle 9.2.0.4 for Linux, character set is the default we8iso8859p1, not changed to zhs16gbk. the database does not have any
1.Get help
imp help=y
2.Import a complete database
imp system/manager file=bible_db log=dible_db full=y ignore=y
3.Import all tables, indexes, and other objects of a specified user.
imp system/manager file=seapark log=seapark fromuser=seapark
To generate an oracle statpack
1. telnet to a remote database serverCMD> Telnet the IP address of the remote database
2. Users switching to the databaseDqxxdbs01:/> Su-Oracle
3. Use a super user to access the database$ Sqlplus "/As sysdba"
4. Check
Oracle query operation considerations
1. Fuzzy searchTo use the wildcard % and _ as character values, you must use the Escape Character After escape. For example:-- Query records starting with 'pt _ 'in the g3e_username FieldSelect * From
Timed_statistics parameter: used to determine whether to collect related time parameters. True indicates collection. If this parameter is set to false, data cannot be collected in the event-related view.SQL> show parameter timed_statistics;Name type
1. String concatenation
Update tbl_main d set D. area_id = '0' | D. area_id
2. Stored Procedure and cursor
Create or replace procedure prc_inset_dealAsBeginDeclareCursor main_departIsSelect * From main_bak;Temp main_bak % rowtype;BeginOpen
Many people have explained this online, the relevant code is also a lot, the code reference http://hi.baidu.com/bailang3106/item/c80b0fed8a08dbd1ea34c952
Http://baser.blog.51cto.com/4153192/871086
There is only one recipient process:
Create or
Application of dbms_rls package -- Implement row-level security control of database tablesRNS stands for row level security.
Log on to the kgis user to create the recursive experiment data table and create the recursive function to apply it to a
After the Oracle database is installed, Scott and other users are locked by default and cannot log on to the database using Scott. To unlock a user, you need to enter sqlplus and execute the following command:
1: SQL> ALTER USER username ACCOUNT
Exp parameter descriptionKeyword description (default) keyword description (default)--------------------------------------------------------------------------Userid username/password full export the entire file (N)Buffer data buffer size owner User
Key: Oracle for update row lockThe syntax of the Select... for update statement is as follows:Select... for update [of column_list] [Wait n | Nowait] [Skip locked];Where:The of clause is used to specify the columns to be updated, that is, to lock
Regular Expression
At present, regular expressions have been widely used in many software applications, including * nix (Linux, UNIX, etc.), HP and other operating systems, PHP, C #, Java and other development environments.
Oracle 10g Regular
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