Oracle or PostgreSQL

 

At the point when you take a gander at PostgreSQL versus Prophet data set administration frameworks, the primary distinction between these two information bases is that PostgreSQL is an open-source data set, while Oracle is a shut data set framework.

PostgreSQL is a free social article arranged data set administration framework that is created by volunteer engineers around the world. Prophet is an authorized business social information base administration framework.

Both data set frameworks utilize comparative ideas like patterns, tablespaces and records, however they separate in regions like replication and back ups. How about we investigate the manners in which that these two data set frameworks handle crucial tasks.

Four degrees of exchanges: 

Read Uncommitted, Read Committed, Repeatable Read, Serializable

1.Corrosive consistent

2.Prophet

3.High accessibility

4.Higher exchanges each second

 

More useful than PostgreSQL, yet these capacities include some significant pitfalls premiums.

PostgreSQL is an advanced version of SQL which has extra supporting to user defined functions,triggers etc.. There are few functional and syntax difference between the both.Thus, the DBA of oracle performs same tasks but uses different approaches that are performed by PostgreSQL DBA.

 

 

Some Considerations :

• The set of operators and SQL functions is very similar though Oracle has a richer set. For example, both DBMS have the concatenation operator “||”, as well as substr, upper, to_char and other functions with the same syntax.  However, any Oracle function that is being used must have its syntax compared to the equivalent function in PostgreSQL, if such exists.

• PostgreSQL lacks the ability to query across multiple databases.

 

• PostgreSQL’s PL/pgSQL is similar to Oracle PL/SQL and can be used to write stored functions. PostgreSQL doesn’t have packages or procedures (only functions).

 

• Both DBMS have triggers and the create trigger statement is similar, but the code executed by the trigger for PostgreSQL must be in a stored function written by the user, while in Oracle you have the option of writing the code in a PL/SQL block in the create trigger statement. PostgreSQL has yet an additional resource called the “rule system” that allows the definition of business logic thatis executed upon an event.

 

• The create table statement is similar in both DBMS. One noticeable difference is that PostgreSQL doesn’t have pctfree, pctused, inittrans, and maxtrans clauses. They also differ in the create database statement, mainly in the arguments and clauses that specify storage details.

 

• PostgreSQL database is open-source and object-relational database management system whereas Oracle is a commercial relational database management system which is available in different editions.

 

• Oracle has secondary database models like the document store, key-value store, RDF store, and graph DBMS whereas PostgreSQL has secondary database models like Document store and key-value store models.

 

• Oracle was implemented in C and C++ programming language whereas PostgreSQL was developed in C programming language.

 

• Oracle vs PostgreSQL support data schemes, typing, XML support, secondary indexes, and SQL.

 

• Oracle supports different programming languages such as C/C++, C#, Perl, PHP, Python, R, Ruby, Scala, Cobol, Tcl, Java, visual basic etc. whereas PostgreSQL supports different programming languages such Antelecom, Inc. Broadband, C/C++, Python, Java, PHP, Perl, and Tcl.

 

• Oracle supports two types of replication methods such as master-slave and master-master replication whereas PostgreSQL supports only one type of replication such as master-slave replication.

 

• Oracle database has support for horizontal partitioning whereas PostgreSQL has support for declarative partitioning form PostgreSQL 10.0

• Oracle database uses PL/SQL scripts on server side whereas PostgreSQL uses user-defined functions as server-side scripts.

 

• Oracle database supports different API’s and access methods such as JDBC, ODBC, Oracle call interface and http://ODP.NET whereas PostgreSQL supports API’s and other access methods such as ODBC, JDBC, native C library, streaming API for large objects and ADO.NET

 

 Some Other Considerations :

• Ownership cost in higher in oracle as we need to pay for every other new feature we need to add whereas PostgreSQL is an open-source, hence free.

• Customer support for Oracle is not free and is approx 1/4 of the license whereas it is free in PostgreSQL but it takes some time to get the problems solved by PostgreSQL communities. We can get the paid service as well in case of PostgreSQL which also will cost lesser than Oracle.

•  Database security is not as advanced in PostgreSQL as it is available in Oracle.

• Scalability is costly in Oracle whereas PostgreSQL supports for free cost expansions.

•  You can not compare these two on the basis of speeds because there are different conditions and machines required for both of them as according to need.

 

Features - According to Oracle vs. PostgreSQL Comparison, Oracle works on different operating systems, with different APIs and bindings for more programming languages. It has different partitioning and replication and some support for in-memory capabilities. If one of these is the needle-mover feature for you, you should consider choosing Oracle.

 

The cost of open source - Proponents of open source software, myself included, tend to ignore the cost of open source. Even “free as in beer” code needs work in order to understand how to install, use and integrate it. If it breaks down, it is harder to find an expert to help you, even with the wonderful developer communities and StackOverflow. While the cost of commercial systems is explicit, the implicit cost of open source might be non-negligible.

 

Vested interest - Suppose you are building a new database at a site of a hundred-branch enterprise, which already uses Oracle. You would need a good reason not to go with Oracle, because it is easier to maintain a known system, and your company probably has qualified staff and procedures for working with Oracle.

 

Integration - Similarly, If you want to integrate your database with an existing code base, which is better suited to work with Oracle, this also points in the way of Oracle.

 

Regulation/Company Culture - Some industries and companies want a known entity to be responsible for every line of code. This might be because of government regulations, company legal policy, etc.

 

Faster Performance, this really depend on its use case. Oracle does have lot optimization options where one could tune up for best performance output for specific requirement, however for common database operation with regular database size, both PostgreSQL and Oracle are fast enough, there were some area where oracle is faster than Postgres and vise versa. But when specifying for specific environment and specific database operation, multi terra-byte database size, Oracle does have more options and features which if used correctly, it makes Oracle much faster than PostgreSQL. By all accounts, Oracle. It simply has more features to address performance needs of multiple uses

 

Usability, Oracle does indeed had more options and features than PostgreSQL, it is however some of those features are not comes in all editions, for example: database partitioning is only available in EE which much more pricy than standard edition 2. For common database operation, PostgreSQL might be more useful in term of usability per price ratio, I personally do not have a reason why one should use Oracle Standard Edition 2 instead of PostgreSQL except if it was planned to upgrade to EE in the future. Depends on your use case, but I would again award this to Oracle. It has features to address almost any use case you would want a relational SQL database . Postgres is clearly geared towards OLTP workloads.

 

Security: Security is depending to one requirements, when implemented correctly PostgreSQL could be setup to be very secure from its default configuration. Other which argue oracle is more secure because it is older than PostgreSQL is non-sense at all, both software is considered old as per now (2016), both software could be configured to be very secure. Do you believe that a man which 50 years old must be more experienced than another 45 years old? no, forget the 5 years of differences, both of them are experienced by the time of 45 years elapsed.

 

Reliability: Again, probably hat tip to Oracle here just due to its massive user base for a very very long period of time. But again, very subjective. Oracle indeed has strong references to be used in mission critical where its customers comes from multiple business area; banking, stock exchange, telecommunication, etc. Not to mention that PostgreSQL is not reliable since PostgreSQL as already stated it does everything possible to ensure reliable operation, but referring to those portfolios that oracle had, Oracle might be more reliable for mission critical operation. It is however, one might need to define the term of mission critical more specific. for example, an ERP system. it might be a mission critical application, but this is an area where PostgreSQL very capable being used as backend.

 

Here is better difference https://scalegrid.io/blog/postgresql-vs-oracle-difference-in-costs-ease-of-use-functionality/