: \ oracle \ product \ 10.2.0 \ oradata \ orcl \ sysaux01.dbf ',
'E: \ oracle \ product \ 10.2.0 \ oradata \ orcl \ example01.dbf ';
3. Create the same GXSN database on another machine and import the control file to the database on the server.
4. Create an ORACLE service instance on the server, generate the corresponding control file, and import the control file to the database GXSN, but an error is found.
5. Delete the new database instance. The original database cannot be connected using SQLPL
db_create_file_dest = '/u01/app/oracle/oradata/testdb'; 26 27 System altered.28 29nobody @ testdb> create tablespace omf_tbs datafile size 10 m; 30 31 Tablespace created.32 33nobody @ TESTDB> create tablespace no_omf_tbs datafile '/u01/app/oracle/oradata/testdb/comment 'size 10 m; 34 35 Tablespace created.36 37nobody @ TESTDB> se Lect d. name from v $ datafile d, v $ tablespace t where d. ts # = t. ts # and t. name in ('omf _ TBS ', 'no _ OMF_TBS');
After the tablespace file is accidentally deleted by Oracle, the database cannot be started. [Problem description] After the tablespace file is accidentally deleted by Oracle, the database cannot be started. The error table space file does not exist. [solution]
Sqlplus/as sysdba # log on to the database shutdown immediate as a dba; # Close the database startup mount; # Open the control file alter database datafile '/opt/oracle/oradata/tbs. dbf 'offli
processes can be increased according to the CPU usage of the server. The speed can be greatly improved. 2. fast_start_mttr_target average recovery time. You need to set a reasonable number, such as 300 seconds. Note the following when speeding up the system checkpoint: 1. Set the target database to non-archive mode. Of course, it is better to stop the database and use Nologging. 2. during import, you can remove all indexes and constraints (index, constraint, trigger, etc., drop or disable all i
support true clustering andNon-disruptive provisioning and scaling of StorageResources up to 100 s of TBS.
"Combining Sistina GFSOur iSCSI San solution means companies get the bestOf both worlds. They get a complete block-basedIP-SAN on the lower layer and they get ClusteringAnd file sharing on a higher layer, "saidCEO of sanrad, Uli gal-Oz. "Our V-switch givesCustomer the freedom to select any old or new SCSI,SCSI/ATA or FC raid, jbod or fabric sto
and convert, if necessary---------------------------------------------------------------------Case 1------The source platform is Sun iSCSI Solaris: endianness bigThe target platform is HP-UX (64-bit): endianness big
SQL> select platform_id, platform_name from V $ database;
Platform_id platform_name-----------------------------------------3 HP-UX (64-bit)
No conversion is needed for files that (1) do not contain Undo/rollbackSegments and (2) have a source and target OS with the same endianness.R
of Optimization Measures for most client-server communications. Install one of the two as the reverse proxy (reverseProxy, which is explained in the Server Load balancer section below) can greatly improve the performance of the web server and reduce the workload required to process requests from the client.
IndexUsing indexes to quickly access data is a well-recognized policy to optimize data access performance. Most of us may learn about indexes from databases. Indexes use increasing storage s
Scenario 4 Data Warehouse Management DWParallel 4 100%-> must obtain a specified 4 degree of parallelism, if the number of processes obtained is less than the number of degrees of parallelism set, the operation failsParallel_min_percent: If set to 100, as aboveILM: Information Lifecycle ManagementHigh compression of dormant data on low-cost channels (e.g. tape drives)Low-volume data compression on low-access devicesHigh-access data is not compressed and placed on highly efficient devicesPartitio
. It takes 3 hours to copy 1 TB of data over a 1 Gbps network, and 9 hours to copy 3 TBS (a typical drive configuration. In contrast, in a 10 Gbps network, the replication time is 20 minutes to 1 hour.
DeploymentDeployed on four nodes
Ceph deployment node editing repo file sudo vim/etc/yum. repos. d/ceph. repo
[ceph-noarch] name=Ceph noarch packages baseurl=http://ceph.com/rpm-{ceph-release}/{distro}/noarch enabled=1
; archive log list;
Database Log Mode
Archive Mode
Automatic archiving
Enable
Archive endpoint
USE_DB_RECOVERY_FILE_DEST
Earliest online log Sequence
1
Next archive log Sequence
2
Current Log Sequence
2
SQL>
Step 3: Create a Stream user and a tablespace (the dual-host can be set at the same time, and the setting method is the same)
# Create a dedicated Stream tablespace for the primary environment
SQL> create tablespace tbs_stream datafile 'e:/OracleDB/tbs_stream01.dbf'
2
Size 100 m autoextend o
ORACLE error 1658, oracle1658
When importing data to oracle, the following error is reported multiple times:
IMP-00003: encountered ORACLE error 1659ORA-01659: unable to allocate MINEXTENTS greater than 1 (in tablespace ZSTA_DATA_TBS)
IMP-00003: encountered ORACLE error 1658ORA-01658: Unable to create INITIAL partition for segments in tablespace ZSTA_DATA_TBS
Error cause:
The tablespace ZSTA_DATA_TBS has been used up.
Solution:
Change the tablespaceChange ZSTA_DATA_TBS to auto-Incre
the largest view. Let's try it.
Select All buttons and select Editor \ Pin \ Widths Equally. This adds a new constraint to all buttons:
Before that, you can take a look at the content about the constraint type in the first part of the tutorial. It looks like a T-frame, but there is a circle in the middle that says "=.
Of course, there may be two TBS. A separate Equal Widths constraint is shown in the Outline document:
Change the label text on the but
Alter Database
Flashbackup {on |Off} -- Mount -- whether to enable the database flash Function
{Begin |End} Backup ---- whether to enable the backup mode of the database
{Mount | open} -- started and nomount -- Database loading modes: mounted and open
Open {read only |Read Write} -- Started, nomount, and mount -- open mode of the database: Read-only and read/write.If standby is read only and primary is read write
Open {read only |Read Write} {Resetlogs |Noresetlogs} -- Started, n
is a collision. Because the direction of food is fixed, we can easily find all the easy-to-Master time for each bag of food in its "Forward" direction (the number of easy-to-Master times equals the number of "passes" times in expansion 2 ). In this way, our problem is equivalent:
Find the minimum time t, so that the frequency of the master is greater than or equal to K if the master is less than or equal to T.
Because all collision (easy-to-Master) Time is the whole point, we can use two
-- ====================================
-- Backup and recovery of read-only tablespace
-- ====================================
I. Features of read-only tablespacesUse read-only tablespace to avoid frequent backup of static dataWhen alter tablespace TBS read only is used, the data file will execute the Checkpoint Process (write all the contents of the dirty buffer to the disk ),The current SCN number is marked, and the header of the data file storing
we continue its game cycle? Why can we let its players come back after they leave, or buy their weapons after accuracy, in fact, it is willing to spend time analyzing big data and mining user data without any bottlenecks. The previous bottleneck is to collect such data. It collects 4 TBS of logs every day, in addition, it needs to be analyzed in a timely manner. If you often purchase it in this place, you will make a solution in this place. It actual
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