AJAX online music website (2) database and development environment, ajax online music
Yesterday I mainly described the website requirements and functional structure. Today I spent some time summing up the specific database design of the website and the development environment and tools used.If you are interested in the
Data | database | online | Online number ' ********* use database to Judge online list and number online
' ********* system support: asp+access, tested on WINDOWS2000+IIS5
' *********login.asp*********
.
.
.
' Login to judge,
' ********* use the database to determine the online list and the number of people online' ********* system support: asp+access, tested on WINDOWS2000+IIS5' *********login.asp*********...' Login judgment, slightly..' Login SuccessfulSession ("Name") =rs ("M_name")Rs. CloseStrsql= "Update b_member Set m_isonline=yes,m_lasttime=now () Where m_name= '" +strname+ "'"
Online expansion of database UNDO tablespaces and expansion of database undo tables
Log on to the oracle database server with an ORACLE account
Method 1:
View the tablespace name and file location:
select tablespace_name, file_id, file_name,round(bytes/(1024*1024),0) total_spacefrom dba_data_files order by tablesp
Backup and recovery data database Case 2-use online backup to restore the database.
1. Set archiving Parameters
1,
Drop database mydb
Create Database mydb
Update dB CFG for mydb using implements logpathd: \ backup \ log
2. updatedb CFG for using userexit on // Enable User ex
Today, I encountered a problem where several tables in the database were cleared. Because the data was deleted last night and was not accessed by users at that time, data can be restored Based on log backup without data loss. But who deleted the data?
Many tools were available before MySQL 2008 to analyze the online logs and backup files of databases, but not many of them support MySQL 2008 and later ver
A friend and I talked to a case, a tablespace originally had a data file (already has a lot of data entered), then he added 7 data files, this time he found that he added more files, want to delete these data files, but do not understand the database, directly offline the table space, and then rm the relevant data files, The last table space cannot be online. I have simulated the recovery test for the scene
8.3.5 Adding or Dropping Online Redo Log Files
8.3.5 add or delete the current redo log file
Changing the size and number of the online redo log files is sometimes done to tune the database. you can add or drop online redo log file groups or members to the primary database w
How to open a database after an online hot backup fails.
System environment: 1, operating system: Windows 20002. Database: Oracle 8i R2 (8.1.6) for NT Enterprise Edition3, Installation path: c:/oracleError phenomenon: When online hot backup, the server has failed, such as power off, restart the
First, we should know that the database is always in a specific State. Next, let's take a look at three common statuses of the database: 1. Offline: we can see the database in Microsoft SQL Server Management, however, the database name is suffixed with "offline", indicating that the
ASP online Backup SQL Server database:
1. Backup SQL Server
Copy Code code as follows:
sql= "BACKUP database name to disk= '" server.mappath ("Backup") "\" "Backuptext.dat" ""
Set Cnn=server.createobject ("Adodb.connection")
Cnn.open "Driver={sql Server}; server= server name; uid=sa;pwd= "
Cnn.execute SQL
On Error Resume Next
If ErrRe
Today, we mainly describe how to minimize the planned downtime of DB2 9.7 database online mode changes when modifying database objects. We all know that IBM®DB2®9.7 introduces new enhancements that allow you to change database objects and ensure that users have full access to these objects during
.
Ii. Database consistency check
A. Log On with informixB. Set the database status to off_line.Onmode-kyUse onstat to check that the database status is off_lineC. Set the database status to single-user modeOnmode-sUse onstat-check that the database status is quiesentD. Chec
Label:Online redo log files are used to cycle through all operations of the Oracle database and are almost always read-write, so it is meaningless to back up the online redo log files at some point in time, and to restore them at all. The Rman backup does not have the ability to back up the online redo log at all, and not only Rman, but all backup software does n
Changing the size and quantity of online redo log files sometimes optimizes the database. You can add or delete online redo log groups or log members in the primary database without affecting the standby database. Similarly, you
Changing the size and quantity of
8.3.5AddingorDroppingOnlineRedoLogFiles8.3.5 add or delete the current redo log file metadata. Youcanaddordroponlineredologfilegroupsormembersto
8.3.5 Adding or Dropping Online Redo Log Files 8.3.5 add or delete the current redo log file Changing the size and number of the online Redo Log files is sometimes done to tune the database. you can add or drop
Although online games are not a database-centric system, like other applications, the database stores important data closely related to players and operators, such as accounts and equipment, and game operation data. The theft or tampering of this data will seriously affect the operation of a game.From the perspective of game server development, we can analyze the
Oracle Database Hot backup (online backup) sample
Log must be placed as an archiveSql>archive log list; --View the log archiving method.Database log mode No Archive modeAutomatic Archival DisabledArchive Destination Use_db_recovery_file_destOldest online log sequence 106Current log Sequence 108Sql>alter system Set Log_archive_start=true scope=spfile--Enable auto
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