In PostgreSQL, the DELETE statement is used to remove rows from a table. This can be done conditionally (based on a WHERE clause) to delete specific rows, or without conditions to remove all rows in a table. Pr
If you’ve installed PostgreSQL on your Mac for a project and no longer need it, it’s a good idea to uninstall it. That will help free up space on your Mac and prevent the possibility of conflicts with other files and software that could cause problems. In this article, we’ll explai...
PostgreSQL provides multiple ways to find and delete duplicate rows in PostgreSQL. This post discusses the below-listed methods to find and delete duplicate rows in PostgreSQL: ● How to Find Duplicate Rows in PostgreSQL? ● How to Delete Duplicates in Postgres Using a DELETE USING Statement? ●...
Recently, I got one request for one script to delete duplicate records in PostgreSQL. Most of the Database Developers have such a requirement to delete duplicate records from the Database. Like SQL Server, ROW_NUMBER() PARTITION BY is also available in PostgreSQL. ...
How to uninstall PostgreSQL and reinstall PostgreSQL & PostGIS & pgAdmin4? 1. Uninstall PostgreSQL 1. List all the packages related with PostgreSQL dpkg -l |grep postgres For example, this is what I found on my Ubuntu 16.04 1.2. Delete all the packages listed above sudo apt-get --purge ...
You may find a circumstance where you have forgotten the password for the AX admin user, but do not have adequate licenses available to add another user through the aclconfig page. Manually deleting a user in the PostgreSQL database will allow you to add a new admin user and resolve the ...
This article reviews how to use the basic data manipulation language (DML) types INSERT, UPDATE, UPDATE JOINS, DELETE, and UPSERT to modify data in tables.
Each sub-step has two queries: 1) to count the number of records that will be deleted; and 2) to actually delete them. If you confirm there's no record to be deleted, there's no meaning on running thedeletestatement. The queries below were ...
a single Postgres sequence, execute the “DROP SEQUENCE” command followed by the sequence name to be dropped. Execute the stated command with the comma-separated syntax to drop multiple sequences in one go. This post has demonstrated various use cases of theDROP SEQUENCEcommand in PostgreSQL....
When using rep_mode=sync, RA adds "include" into postgresql.conf to switch replication mode. If you want to switch to rep_mode=async from sync, you need to delete it manually. On the first node only, aspostgresuser modify thepg_hba.conffile, to control who has access to db instance:...