If the delete [all] input clause is used to back up archived logs. This article provides examples of restoring archived logs and restoring archived logs separately, as well as restor
If the delete [all] input clause is used to back up archived logs.
To implement this function, we can use the rmanduplicate Method and Its simple method. The duplicate method is different from the OS-level backup, it will be a secondary database (Clone
We can use the rman duplicate Method and Its simple method to
Xtrabackup is an open-source project of percona. It supports hot backup of innodb, XtraDB, and MyISAM (locks tables). It can be seen as a free alternative to InnoDBHotbackup.
Xtrabackup is an open-source project of percona. It supports hot backup of
Monitor Data Backup recovery progress (EXPDPIMPDPRMAN)
Monitor Data Backup recovery progress (EXPDP/IMPDP/RMAN)
1. view the progress of EXPDP/IMPDP1. Two views
When you export a large volume of data, some people may be anxious to see the
-- Gt; when the FROM clause contains multiple tables, select the table with the least number of records as the base table -- gt; The WHERE clause must be a bottom-up filter condition in order.
-- Gt; when the FROM clause contains multiple tables,
However, the premise for DBA to perform the connect operation is that oracle services (OracleServicelt; sidgt;) are in the ldquo; rdquo; State, that is, when the data
However, the premise for DBA to perform the connect operation is that oracle
Oracle Database replication or cloning is often used to provide a test or development environment. There are multiple methods to generate a clone database, such as using the Cold Standby Method for database cloning (required
Oracle Database
In Oracle10g, there is a single-Table query SQL statement, which does not have a where clause, but simply calculates the maximum and minimum values of a column at the same time. According to our understanding, it should undergo full index
The default installation path of the mysql database is varlibmysql, but in practice, we often need to customize the installation path of the database, such as datamysql or
The default installation path of the mysql database is/var/lib/mysql. However,
Add, delete, modify, and query the current table in the Oracle trigger (1) only the beforeinsert trigger can query or update the current table createorreplacetriggertri_test_insbefor
Add, delete, modify, and query this table in the Oracle trigger (1)
A strange problem occurred when importing a data from an Oracle database. Chinese characters are garbled. One thing that can be confirmed first is that data exists in the Database in Chinese, and
A strange problem occurred when importing a data from
(I) First query the CPU and IO usage at the system level: top, iostat, sar... (ii) EXECDBMS_WORKLOAD_REPOSITORY.CREATE_SNAPSHOT (); (iii) rmanta
(I) First query the CPU and IO usage at the system level: top, iostat, sar... (ii) EXEC
After the Oracle database has been upgraded to 11 GB recently, some problems have occurred. I began to find some things that need to be summarized. Every time I thought: next time, I will build my own data warehouse
After the Oracle database has
Starting from 10 Gb, Oracle provides more efficient DataPump (expdpimpdp) for data import and export. The old expimp can also be used, but it is not recommended. Note
Starting from 10 Gb, Oracle provides more efficient Data Pump (expdp/impdp) for
For example, DBA may pay attention to the database throughput, but the higher the throughput, the better the service quality provided by the database. The reason why developers are concerned about this indicator is that it is too high.
For example,
The single-host multi-instance MySQL solution is to run multiple MySQL database instances on one physical server.
The single-host multi-instance MySQL solution is to run multiple MySQL database instances on one physical server.
The single-host
In RMAN backup, The tablespace does not need to be in backup mode. It backs up data files, archive log files, control files, spfiles, and backup sets, but does not back up online redo log files.
In RMAN backup, The tablespace does not need to be in
Let me start the database manually. I decided to spend some time studying the settings of Oracle Auto-restart with Linux. The specific method is as follows:
Let me start the database manually. I decided to spend some time studying the settings of
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