PostgreSQL - Psql commands Last Updated : 04 Jul, 2024 Comments Improve Suggest changes Like Article Like Report PostgreSQL, or Postgres, is an object-relational database management system that utilizes the SQL language. PSQL is a powerful interactive terminal for working with the PostgreSQL database. It enables users to execute queries efficiently and manage databases effectively.Here, we highlight some of the most frequently used PSQL commands, detailing their functionalities to enhance your PostgreSQL experience.Top PSQL Commands in PostgreSQLHere are the top 22 PSQL commands that are frequently used when querying a PostgreSQL database:Serial No.CommandDescription1psql -d database -U user -WConnects to a database under a specific user2psql -h host -d database -U user -WConnect to a database that resides on another host3psql -U user -h host "dbname=db sslmode=require"Use SSL mode for the connection4\c dbnameSwitch connection to a new database5\lList available databases6\dtList available tables7\d table_nameDescribe a table such as a column, type, modifiers of columns, etc.8\dnList all schemes of the currently connected database9\dfList available functions in the current database10\dvList available views in the current database11\duList all users and their assign roles12SELECT version();Retrieve the current version of PostgreSQL server13\gExecute the last command again14\sDisplay command history15\s filenameSave the command history to a file16\i filenameExecute psql commands from a file17\?Know all available psql commands18\hGet help19\eEdit command in your own editor20\aSwitch from aligned to non-aligned column output21\HSwitch the output to HTML format22\qExit psql shellAdditional Information:The -d option in psql commands is used to state the database name.The -U option specifies the database user.The -h option indicates the host on which the database server resides.The \h ALTER TABLE can be used to get detailed information on the ALTER TABLE statement.Conclusion Understanding and utilizing Psql commands can significantly enhance your efficiency when working with PostgreSQL. Here we provided an overview of essential commands to help you manage your databases more effectively. These commands are vital tools for any PostgreSQL user.The psql interface is powerful and allows you to do many things, including running SQL statements. If you want to get started with PostgreSQL or deepen your knowledge, check out our PostgreSQL Tutorial. You can also check out the Postgre articles on our blog. Comment More infoAdvertise with us Next Article PostgreSQL - Psql commands R RajuKumar19 Follow Improve Article Tags : Python PostgreSQL postgreSQL-basics Practice Tags : python Similar Reads Rust and PostgreSQL In today's world of software development, choosing the right programming language and database can significantly impact the performance and reliability of your applications. Rust is a modern programming language that prioritizes safety and performance, while PostgreSQL is a powerful and flexible rel 8 min read PostgreSQL - COMMIT The COMMIT command in PostgreSQL is important for saving the changes made during a transaction. Without executing a COMMIT, all the data manipulation operations performed within the transaction will be lost once the session ends. It ensures that the changes made to the database are permanent and vis 4 min read PostgreSQL - CAST The PostgreSQL CAST function provides an efficient way to convert data types in PostgreSQL, which is important when ensuring data is in the correct format for storage, calculations, or comparisons. In PostgreSQL, we can use CAST to transform data between various data types, such as converting string 3 min read PostgreSQL - Joins The PostgreSQL JOIN statement is a powerful tool for combining data or rows from one or more tables based on a common field between them. These common fields are typically the primary key in the first table and the foreign key in the other table(s). By using different types of JOINs, we can perform 5 min read PostgreSQL Clients The PostgreSQL client is a command-line tool used to interact with PostgreSQL databases. It allows users to manage databases, execute SQL queries, and perform various administrative tasks without needing a graphical interface. In this article we will cover the key features of the PostgreSQL client, 4 min read PostgreSQL String Functions PostgreSQL is a powerful, open-source relational database management system that offers a rich set of functions and operators for working with string data. String manipulation is an essential task in many applications, and PostgreSQL provides a variety of built-in functions to make working with text 8 min read PostgreSQL - REPLACE() Function PostgreSQL REPLACE() function is a powerful tool for efficient string manipulation within our database. By utilizing the REPLACE() syntax in PostgreSQL, we can easily replace specific substrings within a string and enabling us to clean, format and modify data effectively.In this article, We will lea 4 min read PostgreSQL - ADD COLUMN In PostgreSQL, the ADD COLUMN statement is a powerful command used to modify an existing database table by adding one or more new columns. This feature is important for adapting table structures to meet evolving data requirements, and it plays a key role in database management and optimization.In th 4 min read PostgreSQL - RENAME COLUMN Renaming columns in PostgreSQL is a common task for developers and database administrators. When aligning with naming conventions, fixing typos, or restructuring database schemas. Using the PostgreSQL ALTER TABLE RENAME COLUMN statement, we can efficiently rename one or more columns without losing d 5 min read PostgreSQL - GRANT In PostgreSQL, the GRANT statement is a powerful tool used to assign privileges to a role, allowing it to alter database objects like tables, views, functions, and more. Here we will learn about the syntax and application of the GRANT statement, with examples to illustrate its usage in PostgreSQL.Sy 3 min read Like