Date Time Operations
PostgreSQL supports all types of date, time, and timestamp data types, and operations on them. Date/Time Types Name Storage Size Description Low Value High Value Resolution timestamp [ (p) ]. read more…
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PostgreSQL supports all types of date, time, and timestamp data types, and operations on them. Date/Time Types Name Storage Size Description Low Value High Value Resolution timestamp [ (p) ]. read more…
PostgreSQL has more than one way of forcing the casting of one data type to another. Casting Method Works for literals? Works for columns? cast (‘string’ as type) Yes Yes. read more…
PostgreSQL supports many data types some of which have been mentioned below. The full list of data types in Postgres is here. General usage data types Name Aliases Description bigint. read more…
psql is a terminal-based front-end to PostgreSQL. There are many actions which can be performed with OS ‘psql’ command itself without explicitly switching to ‘psql’ prompt. To know all such possible actions,. read more…
All connection parameters can be defined as operating system environment variables and then just ‘psql’ can be run to connect to the database. A full list of such variables is. read more…
The connection service file also called just a service file, allows libpq connection parameters to be associated with a single service name. That service name can then be specified by. read more…
In real-world scenarios, the input of passwords should be automated when making a connection to the database. The password can also be given as part of a password file called passfile which will. read more…
One can connect to the database in various ways from psql. One can pass the whole connection string or connection details on the psql command line. Let’s go through such. read more…
Connection to a PostgreSQL database can be made either remotely or locally. If you are following up on the previous exercise of ‘Install PostgreSQL’ and installed PostgreSQL on Ubuntu WSL. read more…
A user or role is created at the PostgreSQL cluster level and it is available or visible inside all the databases. By default, the new role will be able to. read more…