Sql Cheat Sheet - Postgresql

Q: How do I create a table in PostgreSQL?

You can create a table in PostgreSQL using the CREATE TABLE statement, specifying the table name and column definitions.

Q: How do I insert data into a PostgreSQL table?

You can insert data into a PostgreSQL table using the INSERT INTO statement, specifying the table name and the values to be inserted.

Q: How do I update data in a PostgreSQL table?

You can update data in a PostgreSQL table using the UPDATE statement, specifying the table name, columns to be updated, and the new values.

Q: How do I delete data from a PostgreSQL table?

You can delete data from a PostgreSQL table using the DELETE FROM statement, specifying the table name and the condition for deletion.

Q: How do I create an index in PostgreSQL?

You can create an index in PostgreSQL using the CREATE INDEX statement, specifying the table name, column(s) to be indexed, and the index type.

PNG icon of SQL Cheat Sheet for Postgresql, a popular open-source database management system. This cheat sheet provides quick reference information and syntax examples for performing common SQL operations in Postgresql.

Preview

Fill PDF Online

PDF

Word

Download PDF

Download PDF for free

without registration or credit card

The SQL Cheat Sheet for Postgresql is a quick reference guide that provides a summary of commonly used SQL commands and syntax specific to the Postgresql database. It is useful for developers, database administrators, and anyone working with Postgresql to quickly look up commands and syntax without having to refer to the documentation each time.

The PostgreSQL SQL cheat sheet is typically filed and maintained by the PostgreSQL community and development team.

FAQ

Q: What is PostgreSQL?A: PostgreSQL is an open-source relational database management system (RDBMS) that is highly scalable and extensible.

Q: How do I connect to a PostgreSQL database?A: You can connect to a PostgreSQL database using a command-line tool like psql or through a GUI tool like pgAdmin.

Q: What is a schema in PostgreSQL?A: In PostgreSQL, a schema is a namespace that contains database objects such as tables, views, and functions.

Q: How do I create a table in PostgreSQL?A: You can create a table in PostgreSQL using the CREATE TABLE statement, specifying the table name and column definitions.

Q: What is a primary key in PostgreSQL?A: A primary key is a column or a set of columns that uniquely identifies each row in a table. It ensures the data integrity and enables efficient data retrieval.

Q: How do I insert data into a PostgreSQL table?A: You can insert data into a PostgreSQL table using the INSERT INTO statement, specifying the table name and the values to be inserted.

Q: How do I update data in a PostgreSQL table?A: You can update data in a PostgreSQL table using the UPDATE statement, specifying the table name, columns to be updated, and the new values.

Q: How do I delete data from a PostgreSQL table?A: You can delete data from a PostgreSQL table using the DELETE FROM statement, specifying the table name and the condition for deletion.

Q: How do I create an index in PostgreSQL?A: You can create an index in PostgreSQL using the CREATE INDEX statement, specifying the table name, column(s) to be indexed, and the index type.

Q: What is a foreign key in PostgreSQL?A: A foreign key is a column or a set of columns in one table that refers to the primary key in another table. It establishes a relationship between the two tables.