对于PostgreSQL: sql \dt 或者 sql SELECT table_name FROM information_schema.tables WHERE table_schema = 'public'; 对于SQL Server: sql SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_TYPE = 'BASE TABLE' AND TABLE_CATALOG='your_database_name'; 请将your_database_name替换为你的...
A single PostgreSQL server can contain many databases. Let’s explore three different approaches to list databases in PostgreSQL!
PostgreSQL is a database management system that uses the SQL querying language. It is a very stable and feature-rich database system that can be used to store the data from other applications on your VPS. In this article, we will discuss how to create and manage tables within ...
\z Modifications to Get All Tables in PostgreSQLAn alternative to the first solution would be to use:postgres-# \dt *.* This will return all the tables as what’s done before.We hope you learned the different ways in which we can display the INFORMATION_SCHEMA table for our users. We...
Find the row count for all tables in PostgreSQL In PostgreSQL, you can easily retrieve the row count for each table in a database. This can be particularly useful for database analysis, monitoring, or reporting. There are a couple of methods to accomplish this, using either SQL queries that...
To store the data of the database, we need to offer some location to the data on the disk. This location is called the tablespace in PostgreSQL. The data can be tables, triggers indexes, etc. However, if a tablespace is no longer needed, it can be dropped in PostgreSQL. The tablespac...
As you can see, these PostgreSQL tables are created. Summary In this article, we will learn how to create a table in PostgreSQL. I have explained the following topics: The CREATE TABLE syntax and the options that we can use while creating it ...
The role or user who has been assigned the permission Once you have a list of all users, roles, and permissions in your PostgreSQL deployment, you can check that each user has only the permissions required on the specific databases, tables, columns, or views they need access to....
1. DISTINCT is a reserved keyword in PostgreSQL, so we cannot specify it as an object name. postgres=#createtabledistinct(nint);ERROR: syntax error at or near "distinct" 2. In a SELECT query we cannot have more than one DISTINCT keyword: ...
How to Delete Duplicate Rows Using Immediate Tables in PostgreSQL? In Postgres, you can use the immediate tables to delete duplicate rows. For better understanding, follow the below-listed stepwise procedure: Step 1: Create a Table Firstly, you have to create a table having the same structure ...