Download PostgreSQL: Up and Running: A Practical Introduction to the by Regina O. Obe, Leo S. Hsu PDF

By Regina O. Obe, Leo S. Hsu

Thinking of migrating to PostgreSQL? This transparent, fast moving advent is helping you already know and use this open resource database approach. not just will you know about the firm type positive factors in types 9.2, 9.3, and 9.4, you'll additionally detect that PostgeSQL is greater than a database system—it's additionally a magnificent program platform.

With examples all through, this publication indicates you the way to accomplish initiatives which are tough or most unlikely in different databases. This moment version covers LATERAL queries, augmented JSON help, materialized perspectives, and different key themes. If you're a present PostgreSQL consumer, you'll decide up gem stones you've neglected before.

  • Learn uncomplicated management initiatives reminiscent of position administration, database production, backup, and restore
  • Apply the psql command-line software and the pgAdmin graphical management tool
  • Explore PostgreSQL tables, constraints, and indexes
  • Learn robust SQL constructs now not mostly present in different databases
  • Use a number of various languages to put in writing database functions
  • Tune your queries to run as quick as your will allow
  • Query exterior and variegated facts assets with international information wrappers

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Extra info for PostgreSQL: Up and Running: A Practical Introduction to the Advanced Open Source Database (2nd Edition)

Sample text

These are CONNECT and CREATE TEMP TABLE for databases, EXECUTE for functions, and USAGE for languages. In many cases you might consider revoking some of defaults for your own safety. 0 introduced default privileges, which allow users to set privileges on all database assets within a particular schema or database, as well as in advance of their creation. This will ease your management of privileges, provided you keep default priv‐ ileges up to date. Let’s suppose we want all users of our database to have EXECUTE and SELECT access to all future tables and functions in a schema.

We suggest you create one or more schemas to house extensions to keep them separate from production data. 1 or later during a version upgrade, all extensions should continue to function without intervention. For maintainability, you should upgrade your old extensions in the contrib folder to use the new approach to extensions. You can upgrade extensions, especially the ones that come packaged with PostgreSQL, from the old con‐ trib model to the new one. Remember that we’re referring only to the upgrade in the installation model, not to the extension itself.

Conf controls the life-sustaining settings of the PostgreSQL server instance as well as default settings for new databases. You can override many settings at the database, user, session, and even function levels. You’ll find many details on how to fine-tune your server by tweaking settings in the article Tuning Your PostgreSQL Server. An easy way to check the current settings is to query the pg_settings view, as we demonstrate in Example 2-2. We provide a synopsis of key setting and description of the key columns, but to delve deeper, we suggest you check the official documentation, pg_settings.

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