To create a sequence in Postgres, execute the CREATE SEQUENCE command followed by the name of the sequence to be created.
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To create a sequence in Postgres, execute the CREATE SEQUENCE command followed by the name of the sequence to be created.
To make the conditional selection in PostgreSQL, the CASE expression must be used within the SELECT statement.
PostgreSQL, often referred to simply as "Postgres," is a popular open-source relational database management system (RDBMS). It is known for its stability, robustness, and support for a wide range of advanced features, making it a popular choice for large-scale, high-performance applications.
PostgreSQL was first released in 1996 as an Open Source project by the PostgreSQL Global Development Group. It is a fork of work done on Ingres and later Postgres …
psql is a command-line interface used to perform various database tasks efficiently. For instance, using psql different commands can be executed to access, create, delete, or update a database, table, schema, etc.
The “-” operator, DATE_PART(), EXTRACT(), and AGE() functions can be used in PostgreSQL to calculate the difference between various DateTime values.
In Ubuntu, “/etc/init.d/postgresql” and the “systemctl” commands are used with the “start” or “stop” option to activate or deactivate the Postgres server, respectively.
In PostgreSQL, a composite primary key can be defined as a combination of two or more columns that guarantees the uniqueness of a record.
In PostgreSQL, the “psql command not found” error arises if Postgres is not installed or the path for Postgres tools is not set on your system.
In PostgreSQL, the pg_sleep() function accepts the fractional seconds as arguments and delays the execution until the specified seconds pass
In PostgreSQL, the TRIM_ARRAY() function trimmed the specified number of elements from the end of the given array and return a newly updated array.