![]() ![]() Now, if you are willing to have more challenge to find PostgreSQL specialists or you are willing to train your team for PostgreSQL, go for it! Today (2016) PostgreSQL is the most advanced open-source RDBM and is on-par for most deployments with commercial competition.Īre there required features that only one database system offers? You cannot use advanced features of both database platforms, so check what it is that your application really needs. It is not just Oracle, but it is very likely that it's easier to find Oracle or MSSQL specialist in every country. Who is going to support your website (and database)? There are enterprise db companies out there which can provide world wide support, documentation, consultants etc. drop a column)Īs much as I like PostgreSQL one thing that can be really annoying is configuring (auto)vacuum to cope with high write traffic. Changing tables that are used in views (e.g.Postgres 9.6 added some basic ability to run queries in parallel, Postgres 10 improved that even more and Postgres 11 will even be able to use it for things like create table as ASH and AWR reports (Postgres 9.6 added the infrastructure to have something like that in the future).Index organized tables (aka "clustered indexes").transaction control in stored procedures (there will be support for that in the upcoming Postgres 11, but not as complete as in Oracle).Index only scans (available since Postgres 9.2, but not as efficient as Oracle's implementation in my experience).Flashback queries and flashback archives (they are really cool).Materialized views (available since Postgres 9.3, but Postgres still has no incremental refresh or query rewrite).Things where Oracle offers still more features: ![]() On the SQL Level there are really head-to-head, not much difference (with Postgres having actually more "little helpers" and features that make life a lot easier). ![]() You can hide all irrelevant nodes (see node details), use horizontal or vertical plan layouts, export it to an image or save it as JSON to send to a colleague.My opinion is that PostgreSQL is very close to Oracle, especially with the upcoming 9.1 which offers an alternative to Oracle's DataGuard. This visualization shows the most expensive (cost-based) plan nodes. In DBeaver Lite, Enterprise, and Ultimate editions you can use an advanced (graph) visualization of the execution plan. To see the source script on which the plan is based, click the View Source button ( ). To reevaluate the plan, click the Reevaluate button ( ). You can click the rows of the execution plan to see their details (statistics) in the panels below and to the right of the plan. The execution plan command generates a tree of query execution as one of the result tabs and is convenient in estimating if the query/script is quick/optimal enough: If a database driver supports the visualization of the execution plan, you can see the execution plan of the current query (under cursor) by pressing Ctrl+Shift+E or clicking Explain execution plan on the context menu or in the SQL Editor toolbar: (Note: toolbar is customizable. The Execution plan for databases marked with a star is supported only in Lite, Enterprise and Ultimate editions This feature is supported for the following data sources:
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