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Oracle8i On-Line Generic Documentation Release 3 8.1.7
Oracle8i Online Documentation CD-ROM Release 3 8.1.7 for Microsoft Windows
Oracle8i Client Online Documentation CD-ROM Release 3 8.1.7 for Microsoft Windows
Oracle interMedia Audio, Image, and Video Java Classes Users Guide and Reference, Release 8.1.7
Oracle8i Documentation Addendum, Release 8.1.7
Oracle Label Security Administrators Guide Release 8.1.7
Oracle Heterogeneous Services Release 8.1.7
Oracle8i 8.1.7 Installation Guide for Windows NT
Oracle8i 8.1.7 Client Installation Guide for Windows
Oracle8i 8.1.7 Release Notes for Windows NT
Legato Storage Manager Command Reference Guide Release 8.1.7 for Windows 2000 and Windows NT
Oracle Message Broker 2.0.1.0 Installation Guide for Windows NT
Oracle Applications InterConnect Installation Guide Release 4.0.0 for Windows NT and UNIX
Oracle8i Administrators Reference Release 3 8.1.7 for AIX-Based Systems
Oracle8i Installation Guide Release 3 8.1.7 for AIX-Based Systems
Oracle8i Release Notes Release 3 8.1.7 for AIX-based Systems 64-bit
Oracle8i Release Notes Release 3 8.1.7 for AIX-Based Systems
Oracle Message Broker Installation Guide, Release 2.0.1.0 Stand-alone for AIX-Based Systems
Oracle Applications InterConnect Installation Guide Release 4.0.0 for Windows NT and UNIX
Oracle8i Administrators Reference Release 3 8.1.7 for Compaq Tru64 UNIX
Oracle8i Installation Guide Release 3 8.1.7 for Compaq Tru64 UNIX
Oracle8i Release Notes Release 3 8.1.7 for Compaq Tru64 UNIX
Oracle Message Broker Installation Guide, Release 2.0.1.0 Stand-alone for Compaq Tru64 UNIX
Oracle Applications InterConnect Installation Guide Release 4.0.0 for Windows NT and UNIX
Oracle8i Administrators Reference Release 3 8.1.7 for HP 9000 Series HP-UX
Oracle8i Installation Guide Release 3 8.1.7 for HP 9000 Series HP-UX
Oracle8i Release Notes Release 3 8.1.7 for HP Series 9000 HP-UX 64-Bit
Oracle Message Broker Installation Guide, Release 2.0.1.0 Stand-alone for HP 9000 Series HP-UX
Oracle Applications InterConnect Installation Guide Release 4.0.0 for Windows NT and UNIX
Oracle Procedural Gateway for APPC Installation and Configuration Guide Release 8.0.6.1.0 for HP9000 Series 700/800
Oracle8i Administrators Reference Release 3 8.1.7 for Linux Intel
Oracle8i Installation Guide Release 3 8.1.7 for Linux Intel
Oracle8i Release Notes Release 3 8.1.7 for Linux Intel
Oracle8i Installation Guide Release 3 8.1.7 for Alpha OpenVMS
Oracle8i Parallel Server Addendum Release 3 8.1.7 for Alpha OpenVMS
Oracle8i Release Notes Release 3 8.1.7 for Alpha OpenVMS
Oracle8i 8.1.7 Server and Tools Administrators Guide for Alpha OpenVMS
Oracle8i Administrators Reference Release 3 8.1.7 for Sun SPARC Solaris
Oracle8i Installation Guide Release 3 8.1.7 for Sun SPARC Solaris
Oracle8i Release Notes Release 3 8.1.7 for Sun SPARC Solaris
Oracle Applications InterConnect Installation Guide Release 4.0.0 for Windows NT and UNIX
Oracle 8i Release Notes Release 3 8.1.7 for Sun SPARC Solaris 64-bit
Oracle8i Release Notes Release 3 8.1.7 for IBM DYNIX/ptx
Oracle8i Administrators Reference Release 3 8.1.7 for IBM DYNIX/ptx
Oracle8i Installation Guide Release 3 8.1.7 for IBM DYNIX/ptx
Oracle8i Installation Guide Release 3 8.1.7 64 Bit for SGI IRIX
Oracle8i Administrators Reference Release 3 8.1.7 64 Bit for SGI IRIX
Oracle8i Installation Guide Release 3 8.1.7 for Unified Intel UNIX
Oracle8i Administrators Reference Release 3 8.1.7 for Intel UNIX DG/UX, SCO UnixWare, Solaris Intel
Oracle Applications InterConnect Installation Guide Release 4.0.0 for Windows NT and UNIX
Oracle8i Release Notes Release 3 8.1.7 for Intel UNIX DG/UX Intel and SCO UnixWare
Oracle 8i Release Notes Release 3 8.1.7 for Solaris Intel UNIX
Oracle8i Installation Guide 64 Bit Release 8.1.7 for Fujitsu Siemens ReliantUNIX
Oracle8i Administrators Reference 64 Bit 8.1.7 for Fujitsu Siemens ReliantUNIX
Oracle8i Release Notes Release 3 8.1.7 64 Bit for SGI IRIX
Oracle8i Server 8.1.7 for Fujitsu Siemens Computers BS2000/OSD Users Guide
Oracle8i Server 8.1.7 for Fujitsu Siemens Computers BS2000/OSD Installation and Database Administration Guide
Phone: 1.800.633.0738 Long Raw data types can't be included from the CREATE TABLE AS syntax. This is documented inside Oracle 7.3 or 8.0 Server SQL Reference Guide AS subquery clause explanation on the CREATE TABLE syntax. The INSERT INTO statement results inside the same error see example. Use export/import to workaround this limitation of long raw usage.
SQL create table test2 as select col1 from test1;
SQL alter table test2 add col2 long raw;
You may now export in one table test1 and import in to the other table test2.
More plus much more we are using locally managed tablespaces. They offer a substantial amount of benefits, why then should we not make use of this new feature?
Some thoughts are needed whenever you decided make use of Uniform Extent Allocation. With the uniform method, you specify a level size if you create the tablespace, and many types of extents for those objects created within that tablespace is going to be that size.
The uniform method also gives an enforcement mechanism, since t override the uniform extent size locally managed tablespaces if you create a schema object say for example a table or even an index.
The goal should be to allocate the maximum amount of disk space as really needed so that as really used. With the uniform extent allocation it is possible to calculate as well as estimate the volume of extents you wish to allocate. Gaps or unused disk space in the tablespace must be avoided.
Lets believe that we produce a tablespace with all the uniform extent sized 1 MByte and 10 extents. Remember that locally managed tablespaces uses another 64 KBytes and the Header Bitmap:
Note that each one calculations are made in KBytes knowning that your chosen extent dimension is the multiple within your defined block size. The following statement creates this locally managed tablespace that has a uniform extent dimensions of 1 MByte:
EXTENT MANAGEMENT LOCAL UNIFORM SIZE 1024K;
If you might be including a STORAGE clause if you create tables or indexes, Oracle will allocate as often extents since you indicate to make use of. Table TAB1 are going to be allocated with one extent, table TAB2 too when you need a minimum of 100 KBytes. Table TAB3 will likely be created with two extents. This could even be done by defining an INITIAL price of 2 MBytes.
SELECT segmentname, segmenttype, blocks, extents
SELECT tablespacename, bytes, blocks
That means within the tablespace UNITEST will still be 1536 blocks available. How many extents are these blocks? This is usually calculated by multiplying the amount of available blocks through the block size and divided because of the extent size:
extents could possibly be used to refill the whole tablespace.
If you look into the physical file size useful for the tablespace UNITEST you will probably be surprised: Instead with the calculated 10304 KBytes 10551296 Bytes there is an disk file s size 10555392 Bytes. Oracle allocates another block which could not be used in object allocation. Some from the Oracle tools such as Tablespace Manger shows the whole number of blocks in line with the disk file size. In our example this are 2577 blocks, but usable are simply just 2576 blocks minus 64 KBytes for header bitmap.
Each extent dimension is the multiple of your respective defined block size.
The usable tablespace dimension is the multiple within your estimated quantity of extents.
KBytes for your header bitmap HB towards the usable tablespace size.
The physical file size adds one block AB on the defined tablespace size.
In Oracle8i BLOBs Binary Large Objects may be used instead of LONG RAWs to hold binary unformatted data, like documents, images, video and audio. On the revolutionary BLOB data type many in the former LONG RAW restrictions aren't valid anymore or over to 4GB could be stored. This tip shows tips on how to migrate LONG RAW columns to BLOBs.
It will be worth to build a separate tablespace for your LOBs bigger contents to realize performance. The tables containing LOB columns is usually stored in addition to other tables inside a tablespace called tab within this sample. However the LOB columns referencing their data in a very separate tablespace called btab here.
A new table need to be created which has the new BLOB column. Even if you'll be able to add a BLOB column to a existing table we can't migrate old LONG RAW data inside it. The required SQL function TOLOB may be used in SELECT subqueries of INSERT statements only.
id NUMBER10 CONSTRAINT nnnewdocsid NOT NULL,
LOBs normally do not use rollback segments. To maintain read consistency Oracle creates new LOB page versions each time a lob changes. PCTVERSION will be the percentage of all used LOB data space that may be occupied by old versions of LOB data pages. As soon as old versions of LOB data pages learn to occupy a lot more than the PCTVERSION level of used LOB space, Oracle attempts to reclaim the previous versions and reuse them. In other words, PCTVERSION may be the percent of used LOB data blocks that can be found for versioning old LOB data. The PCTVERSION may be set on the percentage of LOBs that happen to be occasionally updated. If LOBs are inserted once and afterwards usually read only, 0% can be employed.
If CACHE is specified Oracle places LOB pages inside buffer cache for faster access. NOCACHE works extremely well if you can find occasionally no writes to stored LOBs and infrequently reads only. CACHE READ will work for busy read operations and infrequent writes.
Set CHUNK to how many blocks of LOB data that is going to be accessed previously. This reduces network roundtrip overheads. The INITIAL and NEXT storage parameters need to be greater than CHUNK DBBLOCKSIZE size. Use bigger CHUNKs if at all possible.
The default setting ENABLE STORAGE IN ROW stores LOBs lower than 4KB in the table and greater LOBs are automatically moved out in the row. This could be the recommended setting. DISABLE STORAGE IN ROW can be accustomed to store all data beyond your rows. A lot of small LOBs in a table can decrease performance of table operations like full table scans or multi-row accesses.
Consider that CHUNK and ENABLE/DISABLE STORAGE IN ROW can not be altered after table creation.
INSERT INTO newdocs id, bdata
To copy the details is easy. The SQL function TOLOB can be familiar with convert LONG RAW to BLOB. Its also possible to convert LONG to CLOB if neccessary. The main thing in the whole data migration would be to choose good storage parameter settings especially when a large number and big LOBs in space need to be stored.
One selection for secure communication between Net8 client and server should be to tunnel the communication inside Secure Shell protocol.
Conceptually, it truly does work like this. First, you install an SSH client for the local machine in places you run your Net8 client. You utilize SSH client to find out an SSH connection for the remote host the location where the Net8 server is running. You also make use of the SSH client to determine a listen over a local port for Net8 requests.
Heres the cool part: after you fire up your Net8 client, it connects for the Net8 port on localhost - your machine - as an alternative to connecting to port 143 on the remote server machine.
The SSH client then forwards everything it receives within the local Net8 port from the SSH session, or tunnel, for the remote SSH daemon, which then forwards the data to your Net8 port about the remote host.
How does the SSH daemon around the receiving end follow simple proven steps with all this Net8 information coming advertising online? Well, the info is part on the port-forwarding arrangement you gave the daemon if you first thrilled the SSH session. For example, youd invoke SSH from a unix client machine in this way
Tfhe command need to be invoked as root because root privilege is necessary to set up port forwarding. The -f option tells SSH to run inside background after port forwarding continues to be established. -L localport:remotehost:remoteport specifies how the given port about the local client host would be to be forwarded on the given host and port about the remote side. In our example, we use port 5555 within the client and port 1521 for the database server 192.168.121.32
The server port have to be whichever port listens for Net8 requests 1521 of all systems. Depending for the SSH client, youll either be prompted for the password to log in for the SSHD 194.75.132.34 server when issuing the tunneling command, or youll should initiate a login manually to find out the session, In all cases, youll have to make use of SSH to log in to your remote host before you may use it to launder your connection. The entire Net8 port-forwarding scenario is shown within the next figure.
We start with using lsof list open files, an application that notifys you which open files and network connections participate in which processes. to check on for software listening at local TCP port 5555. There is none. We confirm this by looking to telnet to localhost at port 555 with no success.
At this aspect, were sure that theres no activity, say for example a listen or even an open connection, on port 555 on our local machine. That port is okay to utilize. Next, we setup the port forwarding by issuing an SSH command. Remember that you ought to be root to put in place port forwarding:
The tail - f/dev/null we tacked within the end from the SSH command merely low-overhead command to help keep the session open. We didnt want to help keep an actual shell session open and running inside background whenever we didnt demand it, and we used the tail command instead. You can verify with ps - ef, which the command has become running from the background therefore you now have a perpetual Net8 connection through two firewalls - - cool isnt it?
Next you need to setup your configuration file, then examine the connection with tnsping and lastly connect with sqlplus.
Starting with Release 7.1 of Oracle, users also have access to an attribute called an inline view. An inline view is really a view in a query. Using this feature, you may easily accomplish your task.
Every row within the report have to have access to the whole sum of sal. You can simply divide sum sal by that total, and youll have a very number to display the percentage from the total.
column percentage format 99.9
select deptno, sumsal, sumsal/totsal100 PERCENTAGE
from emp, select sumsal totsal from emp
With Oracle8i Release 2 8.1.6 and better, you may calculate percentages by using the newest analytic functions at the same time. The query employing an analytic function might look such as this:
column percentage format 99.9
select deptno, sumsal, ratiotoreportsumsal over100 PERCENTAGE
The query produces exactly the same answer but it really does so well, given it does not should make two passes over your data to arrive at a better solution. Because the analytic functions are built-in, queries which use them will find the result more rapidly compared to pure SQL-based approach.
It is usually difficult to list all privileges and roles used on a specific user within a select, since a privilege might be assigned to a part, that may be used on another role, which in turn may be assigned to another role, which may be granted an end user. The following view lists all of the roles, all from the roles granted to people roles, etc:
START WITH grantee uid OR grantee 1 sa, u2
GRANT SELECT ON userrolehierarchy TO PUBLIC;
That view is based within the existing data dictionary view, if you make the new view as SYS, it'll show the currently logged-in users their roles and all in the roles granted to people roles, and the like. Youll find this view to be very fast.
To get all of your respective table privileges, you must do this:
SELECT DISTINCT privilege, owner, tablename
WHERE grantee IN SELECT FROM userrolehierarchy;
And to acquire all of your respective system privileges, you want to do this:
where grantee in pick from userrolehierarchy;
During a migration it could be important, that nobody can connect on the database. You may have two opportunity to achieve this
An exclusive table lock would be the most restrictive mode of table lock, allowing the transaction keep lock exclusive write access towards the table. An exclusive table lock is acquired for any table as follows:
SQL GRANT ALL ON emp TO PUBLIC;
Only one transaction can get an exclusive table lock for just a table. An exclusive table lock permits other transactions just to query the table.
An exclusive table lock held with a transaction prohibits other transactions from performing any sort of DML statement or placing any sort of lock for the table.
Oracle releases all locks acquired because of the statements inside a transaction after you either commit or roll back the transaction. Oracle also releases locks acquired after the savepoint when rolling back to your savepoint. However, only transactions not waiting with the previously locked resources can get locks within the now available resources. Waiting transactions continues to wait until as soon as the original transaction commits or rolls back completely.
You may make use of the RESTRICTED SESSION system privilege to modify the database in single user mode for migrations.
Qllows only users with RESTRICTED SESSION system privilege to go browsing to Oracle. Existing sessions are certainly not terminated.
reverses the effect in the ENABLE RESTRICTED SESSION clause, allowing all users with CREATE SESSION system privilege to go browsing to Oracle. This may be the default.
You can take advantage of this clause no matter if your instance contains the database dismounted or mounted, open or closed.
In an initial step prior to migration, you shutdown the database an start it again to be sure that every users are disconnected. Now revoke the RESTRICTED SESSION system privilege from most users, it privilege is commonly not used.
svrmgr SHUTDOWN IMMEDIATE;
svrmgr SPOOL revokerestrictedsession;