Introduction To The V$ And Gv$ Views

Introduction To The V$ And Gv$ Views

With each new major release and version of Oracle, dozens if not hundreds of new dynamic performance v$ views are added. For instance, in Oracle 10gR2, there are 398 dynamic performance v$ views. In Oracle 11g R1 there are now 484 dynamic performance v$ views which means that between different types of software development 10gR2 and 11g R1, there are 86 new v$ views in 11gR1. The Oracle RAT suite includes database replay and the following v$ view provides details on usage and status for this key new feature with Oracle. Right now, this instance is actively recovering archive logs, but is not “live”.

The interesting columns in this view are sid, type, and the lmode/request pair. This dynamic view has an entry for each block in the database buffer cache. In this article, we’ve stated the key differences between both positions and their roles and responsibilities. All these to help you make the right hiring decision, whether it’s to hire a database architect or a database administrator. Data rules the world, and companies can make predictions of their future success with data. However, if their data is not organized, not secure, or messy, it’s pretty much impossible to make these predictions and visions happen.


Here is a useful query which displays basic information about the database, using hire blockchain developer and v$instance. SELECT ANY DICTIONARY is a SYSTEM privilege that lets you select from dictionary views. You can select from any dictionary and used it within a procedure.


Database management systems are used to organize databases effectively. Blockchain is a distributed ledger technology that enables a set of peers to work together to create a unified, decentralized network. The peers can communicate and share information or data with the help of the consensus algorithm. Also, there is no need for a centralized authority, which makes the whole network trustworthy when compared to other networks.

What Are V$database, Sid, Servicename, Istance In Oracle 18c?

When it comes to other users associated with the database, an admin can delegate roles to other users. Other users can manage the database according to the role that they are assigned. Other key functions, such as backing up the database, maintenance, etc., can also be done. He is at the top and can easily create, modify, change, and delete the records.


Once implemented, some old issues need to be tackled in new ways. One of those is manipulating the “identity” of a database – its name and ID. The operational and organizational drivers for this change include conformity to standards and providing uniqueness to cloned databases.

V$database Created Is This The Database Creation Timestamp ?

If you want to change this, then create another sub-directory and then use the SQL command alter database move datafile. Please note that these changes might have consequences such as impacting backup & recovery. They should not be deployed in a production environment without proper planning and thorough testing. Oracle’s Multitenant Option was introduced in 12c Release as an efficient response to the Cloud technology challenges by reducing costs, streamlining processes and managing resources effectively. This view is useful only for user-managed online tablespace backups, because neither RMAN backups nor offline tablespace backups require the datafiles of a tablespace to be in backup mode.

Only people who are allowed by the administrator can participate in the blockchain. The only similarity between private blockchain and database is the centralized aspect. One of the biggest drawbacks is the chance of the data getting corrupted. But, that’s not always the case, as most of the entities always trust their owner and hence skip the backup data option. Another big drawback is how the data can be modified by anyone who is in control of the database itself.

A graph database would be better at figuring out how hundreds of different member characteristics relate in several different ways to disseminate retirement information. A graph database, like any ontology, depicts behaviors of entities and the relationships between them. Graph databases show connections, and the specific data values mean less. Each node is connected to another by an “edge,” a connection representing a relationship between two nodes.

Dataversity Events

In alternative, we created a VIP Membership that allows you to browse the site without ads and get some extra features, for a small price. The Eighth Circuit affirmed judgments against DatabaseUSA for copyright stages in system development cycle infringement and DatabaseUSA’s owner for breach of contract. Finally, the court affirmed the $11.2 million award for the copyright infringement claim and the $10 million award for the breach of contract claim.

Blockchain introduces a performance penalty because of its verification method. This clearly means that you should avoid blockchain where fast execution time is an essential factor.

Company Information

Storing a data warehouse can be costly, especially if the volume of data is large. A data lake, on the other hand, is designed for low-cost storage. A database has flexible storage costs which v$database can either be high or low depending on the needs. This is the top level information that is valid if the database is a non-container database or a container database with pluggable databases.

On a logical standby database, a role transition can be performed while in this state, but the role transition will not complete until all current transactions have committed. Monitors the progress of a standby database in managed recovery mode, more exactly, it displays information about the activities of log transport service and log apply service. The following table describes views you can use to query the RMAN repository. The V$ views reflect the RMAN repository as stored in the database control file, and the recovery catalog views reflect the RMAN repository as stored in the recovery catalog. The question of data warehouses vs. databases is one that every business using big data needs to answer. As we’ve seen above, databases and data warehouses are quite different in practice. Deciding to set up a data warehouse or database is one indicator that your organization is committed to the practice of good enterprise data management.


After all, most business applications rely on databases to function behind the scenes. This relationship allows tables to be linked in logical ways, enabling a more flexible, productive use of data. So while a database and a spreadsheet might look similar at a glance, their looks can be deceiving. Behind the curtain, databases contain robust functionality and versatility, enabling more sophisticated use cases and, ironically, simplifying work. Oracle has written to this log before; it is not needed for instance recovery. Oracle has written to this log before, it is needed for instance recovery. Hiring for each position is not hard, but it requires you to invest time and energy.

Data Storage Explained: Data Lake Vs Warehouse Vs Database

Databases also exhibit unique features, including the ability to read and write. Here, only the parties with proper access can do Write and Read actions. Databases also exhibit the ability to store multiple copies of the same data and their history. This is done with the help of a trusted, centralized authority who manages the server. With the idea of blockchain clear, it is now time for us to understand the database. The database, unlike blockchains, are a centralized ledger that is run by an administrator.

That means if you upload, edit, or delete a piece of data in one place, the change will be made in every other place that references that data. They’re essentially data trackers that allow a reasonable degree of content variation. You can insert links, for instance, or format the font within cells. Spreadsheets display everything at once, so when you open a spreadsheet, you can see all the data you have at a glance—or a scroll. Whether you realize it or not, you’re probably already familiar with a database or two.

The following v$ views provide the details for NFS configurationwithin Oracle. v$database Browse other questions tagged database oracle sql or ask your own question.

This keeps the integrity of your data intact, preventing data cleanliness issues down the line. A spreadsheet will, by default, allow you to type anything into v$database a field—and even store different types of data in the same field. This allows for a lot of flexibility, but can also create problems when you makes a mistake.

A SQL or relational database organizes information within formal tables that codify relationships between different pieces of data. Each table contains columns and rows, similar to the structure of a spreadsheet in Microsoft Excel.

Guide To Modify Pluggable Cdb Name, Pdb Name, And Dbid In Oracle 18c Multitenant Architecture

Blockchain is a fairly new technology and hence is still evolving. The administrator controls every aspect of the database and is highly centralized. It is also permissioned like hybrid blockchain, but not when compared to the public blockchain. This hopefully answers your question related to permissioned blockchain vs database. Now you what’s the difference between blockchain database vs traditional database.

Use V$DATAFILE, V$LOGFILE and V$CONTROLFILE to identify the datafiles, log files and control files for your database. This same procedure works whether you named these files manually or allowed Oracle Managed Files to name them. Before making a backup, you must identify all the files in your database and decide what to back up. Census Bureau’s American Community Survey , rural-urban commuting area codes, U.S. The data provide an important update to the contextual variables already available for previous waves of the study. Additionally, there are a few new variables in the present database that are absent from other waves. The scalability is what makes databases such a good choice for the enterprises out there.

For all columns, indicates whether all the fixed-length maximum size columns of that row are placed into the redo log or not . In a CDB, a value of NO means that minimal supplemental logging is not enabled in all of the PDBs in the CDB. NO – None of the database-wide supplemental logging directives are enabled. STANDBY – Indicates all users other than SYS are prevented from making changes to any database object being maintained by logical standby. DISABLED – Database is part of a broker configuration and broker management of the database is disabled. This value is displayed if the user disabled broker management of the database or configuration, or if broker management was disabled due to a role change .

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