PostgreSQL Table

How-tos How to Drop if Exists vs Drop in PostgreSQL Learn the differences between DROP IF EXISTS and DROP in PostgreSQL. This article explores how to safely drop tables, manage foreign key references, and avoid errors. Discover … ↗ How-tos How to Limit Rows in PostgreSQL This article shows the use of the LIMIT and FETCH FIRST clause in PostgreSQL. ↗ How-tos How to Drop All Tables in PostgreSQL This article shows how multiple tables in a database can be deleted without removing the database conatining the tables in PostgreSQL. ↗ How-tos How to Rename a Table Inside a Schema in PostgreSQL This article describes renaming a table inside a schema in PostgreSQL. ↗ How-tos How to Create a Pivot Table in PostgreSQL This article describes how to create a pivot table in PostgreSQL. ↗ How-tos How to Find the Disk Size of a PostgreSQL Table and Its Indexes This article discusses how we can find the disk size of a PostgreSQL table and its indexes. Using the \l+ command, we can show the database sizes, and using \d+, we can view the … ↗ How-tos How to Add Primary Key to a PostgreSQL Table Only if It Does Not Exist Sometimes, we may forget to assign a primary key while executing the CREATE TABLE query. We can use the alter table query to assign the primary key in an existing table. ↗ How-tos How to Delete All Table Rows in PostgreSQL This article shows the method to delete all rows in a table in PostgreSQL. ↗