Understanding Delimited Strings and Pattern Matching in PostgreSQL

Understanding Timestamps in PostgreSQL and Redshift: A Guide to Correct Formatting and Conversion

Calculating Time Spent in a Session Using SQL Queries

Extracting Numerics from Strings in PostgreSQL 8.0.2 Amazon Redshift Using Regular Expressions

Finding All Non-Existent Account Values in Unnormalized Data Using SQL

Bucketizing a Dataset in SQL Over a Timestamp: Best Practices for Efficient Data Management

Counting Duplicates in SQL for One Column: Choosing the Right Approach

Alternatives to Subqueries for Grouping by Count of Groups in Data Analysis

Ranking Data by Value in Amazon Redshift: A Comparative Analysis of Cumulative Sum, Recursive CTE, and Merge Statement Approaches

Using Case Statements with Conditional Clauses for Efficient Data Filtering and Analysis in SQL