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Administrator's Guide, 9i Release 2 (9.2.0.2)

Storing Tablespaces on Raw Partitions

Physical Diskdisks. To avoid overwriting that block, Oracle9 i database skips the first block of a physical raw partition that is used for an Oracle9 i datafile.

Administrator's Guide, 9i Release 2 (9.2.0.2)

Storing Tablespaces on Raw Partitions

Compatibility Issuesblock that is skipped for physical raw conventions. This also means you cannot simply use OCOPY

Administrator's Guide, 9i Release 2 (9.2.0.2)

Storing Tablespaces on Raw Partitions

A Storing Tablespaces on Raw PartitionsThis appendix describes how to configure your system to store datafiles for tablespaces on raw … partitions. This appendix contains these topics: Raw Partition Overview Creating an Extended Partition … Creating a Tablespace in a Raw Partition Note: Oracle Real Application Clusters require additional

Administrator's Guide, 9i Release 2 (9.2.0.2)

Storing Tablespaces on Raw Partitions

Raw Partition Overviewraw partitions. A raw partition is a portion of a physical disk that is accessed at the lowest … possible level. Input/output (I/O) to a raw partition offers approximately a 5% to 10% performance … improvement over I/O to a partition with a file system on it. A raw partition is created after generation … . An

Getting Started, 9i Release 2 (9.2.0.2)

Oracle9i Architecture on Windows

Raw File SupportWindows supports raw files, similar to UNIX. Using raw files for database or log files can have a … slight performance gain. Raw files are unformatted disk partitions that can be used as one large file … . Raw files have the benefit of no file system overhead, because they are unformatted partitions … . However,

Programmer's Guide, 9i Release 2 (9.2.0.2)

OCI Datatype Mapping and Manipulation Functions, 114 of 134

raw (IN/OUT)Raw whose size is returned.

Programmer's Guide, 9i Release 2 (9.2.0.2)

OCI Datatype Mapping and Manipulation Functions, 108 of 134

OCI Raw FunctionsThis section describes the OCI Raw functions. Table 18-5 Raw Functions Function/Page Purpose … OCIRawAllocSize() Get allocated size of raw memory in bytes OCIRawAssignBytes() Assign raw bytes to raw … OCIRawAssignRaw() Assign raw to raw OCIRawPtr() Get raw

Setup and Configuration, 9i Release 2 (9.2.0.2)

Configuring Shared Disks for Real Application Clusters

The Configuration Raw DeviceYou must create at least one shared raw device as an information repository for the database server … raw device, the Global Services Daemon (GSD) that manipulates the device, and the Server Control … tools to operate on multiple nodes. You must create a shared raw device for SRVM: If this installation … Control (SRVCTL) utility,

Getting Started, 9i Release 2 (9.2.0.2)

Multiple Oracle Homes and Optimal Flexible Architecture

Using Raw Partitions for TablespacesA raw partition is a portion of a physical disk that is accessed at the lowest possible level. I/O … of a raw partition improves performance by approximately 5% to 10% compared to I/O of a partition … containing a file system. Therefore, Oracle Corporation encourages you to use raw partitions for your tablespace files.

Application Developer's Guide - Large Objects, 9i Release 2 (9.2.0.2)

Modeling and Design

SQL RAW Type and BLOBsSQL RAW types and BLOBs are handled as follows: In PL/SQL: BLOBs to be selected into a RAW. In OCI

Objects for OLE, 9i Release 2 (9.2.0.2)

Migration from Long Raw to LOB/BFILE

Migration from Long Raw to LOB/BFILEFeedback Migration from Long Raw to LOB/BFILE Oracle8 i introduced the following new types described in … OLE to access them much faster than Long or Long Raw. For this reason you should convert existing … Long Raw code to BLOB, CLOB and BFILE. However, new applications should only use LOBs and BFILEs. The … OraLOB object should

User-Managed Backup and Recovery Guide, 9i Release 2 (9.2.0.2)

Making User-Managed Backups

Backing Up to Raw Devices on UNIXWhen backing up to or from raw devices, the UNIX dd command is the most common backup utility. See … size: it is merely the size of the buffer used by dd when making the copy. Raw offset On some systems … , the beginning of the file on the raw device is reserved for use by the operating system. This … storage space is called the

Pro*C/C++ Programmer's Guide, 9i Release 2 (9.2.0.2)

Large Objects (LOBs)

LOBs versus LONG and LONG RAWLOBs are different from the older LONG and LONG RAW datatypes in many ways. The maximum size of a … LOB is 4 Gigabytes versus 2 Gigabytes for LONG and LONG RAW. You can use random as well as sequential … access methods on LOBs; you can only use sequential access methods on LONG and LONG RAW. LOBs … , but can have only one LONG

Application Developer's Guide - Advanced Queuing, 9i Release 2 (9.2.0.2)

Oracle Advanced Queuing by Example

Enqueue of RAW Messages using Java\"); System.out.println(\"Successful getQueue\"); /* Creating a message to contain raw payload: */ message … = queue.createMessage(); /* Get handle to the AQRawPayload object and populate it with raw data

Pro*COBOLĀ® Programmer's Guide, 9i Release 2 (9.2.0.2)

Large Objects (LOBs)

LOBs Compared with LONG and LONG RAWLOBs are different from the older LONG and LONG RAW datatypes in many ways. The maximum size of a … LOB is 4 Gigabytes versus 2 Gigabytes for LONG and LONG RAW. You can use random as well as sequential … access methods on LOBs; you can only use sequential access methods on LONG and LONG RAW. LOBs … , but can have only one LONG

JDBC Developer's Guide and Reference, 9i Release 2 (9.2.0.2)

Basic Features

Streaming CHAR, VARCHAR, or RAW ColumnsIf you use the defineColumnType() Oracle extension to redefine a CHAR, VARCHAR, or RAW column as a … the column were actually of type LONG or LONG RAW. Note that there is not much point to this … , because these columns are usually short. If you try to get a CHAR, VARCHAR, or RAW column as a data

Setup and Configuration, 9i Release 2 (9.2.0.2)

Configuring Shared Disks for Real Application Clusters

Additional Raw Devices Required by the DBCATo use the Database Configuration Assistant, you must configure raw devices as described in this … following raw devices: Seven raw devices for seven tablespace datafiles At least two raw devices for … control files One raw device for each instance for its own tablespace for automatic undo management,

Administration, 9i Release 2 (9.2.0.2)

Real Application Clusters Management Tools Error Messages

PRKR-1045 \"raw device version '{0}'\"Cause: Attempted to retrieve the version of the repository. Action: No action is required.

User-Managed Backup and Recovery Guide, 9i Release 2 (9.2.0.2)

Making User-Managed Backups

Making User-Managed Backups to Raw DevicesA raw device is a disk or partition that does not have a file system. In other words, a raw device … can contain only a single file. Backing up files on raw devices poses operating system specific … for a general overview of raw devices as they related to Oracle Real Application Clusters

JDBC Developer's Guide and Reference, 9i Release 2 (9.2.0.2)

Basic Features

Streaming LONG or LONG RAW ColumnsWhen a query selects one or more LONG or LONG RAW columns, the JDBC driver transfers these columns … and LONG RAW data with any of the three stream types. The driver performs conversions for you … support, see \"JDBC and Globalization Support\". LONG RAW Data Conversions A call to … getBinaryStream() returns RAW


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