Understanding Table Partitioning in PostgreSQL
Introduction Table partitioning in PostgreSQL enhances query performance and data management efficiency for large tables by breaking them down into smaller, more manageable pieces. Why Partition Tables? Partitioning…
How to audit data with triggers in PostgreSQL
Introduction Auditing data changes can be key for maintaining data integrity and history in database systems. This article walks through the use of triggers in PostgreSQL to create…
PostgreSQL aggregation: SUM, AVG, MIN, and MAX
Introduction Data analysis often requires summarizing data in various ways to extract meaningful insights. In PostgreSQL, this can be accomplished using aggregation functions like SUM, AVG, MIN, and…
Using the REPLACE Function in PostgreSQL
Overview The REPLACE function in PostgreSQL is a string manipulation tool that allows you to replace all occurrences of a specified substring with another substring within a given…
Using HAVING clause with GROUP BY in PostgreSQL
Introduction The HAVING clause in PostgreSQL is used to filter grouped records that result from a GROUP BY clause, similar to how the WHERE clause filters rows before…
Strings to Dates conversion in PostgreSQL
Introduction Manipulating dates is a common task in database operations, and converting strings to dates is a vital skill when working with PostgreSQL. By understanding the nuances of…
PostgreSQL: Convert Text Into Structured Data
Overview Working with unstructured data can be challenging, but PostgreSQL offers powerful tools for converting text into structured form. This tutorial explores how to harness these capabilities through…
Fixing PostgreSQL Error: Relation ‘abc’ Does Not Exist
The Problem Encountering errors in PostgreSQL can halt your database operations and querying progress. One such common error is “Relation ‘some_relation_name’ does not exist” (in the following examples…
Fixing PostgreSQL Error: Duplicate Key Violations
The Problem Duplicate key violations occur in PostgreSQL when an INSERT or UPDATE operation attempts to insert or modify a record that would violate a unique constraint, commonly…
PostgreSQL Error: Invalid Regular Expression due to Invalid Escape Sequence
Introduction Dealing with regular expressions can sometimes lead to unexpected errors, especially when used in SQL queries. One common error in PostgreSQL is related to invalid escape sequences…
