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Tag: sql joins

COALESCE SQL

Beyond COALESCE SQL: Mastering NULL Handling in SQL

September 17, 2025 Nirium Database Performance, Databases, MySQL, MariaDB & Percona Server, PostgreSQL, SQL Server, TimescaleDB

Here’s how to master the handling of NULL values without using the COALESCE SQL clause.

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insert into table from select

How to Insert Into Table From SELECT Query in SQL

September 11, 2025 Nirium Database Performance, Database Security, Databases, MySQL, MariaDB & Percona Server

Wondering how to insert into table from SELECT query in SQL? You came to the right place!

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COALESCE SQL

COALESCE SQL Query Explained

April 21, 2025 Nirium Database Performance, Databases, MySQL, MariaDB & Percona Server, PostgreSQL, SQL Server

The COALESCE SQL statement allows us to perform operations on NULL values. Here’s what it is, how it works, and why you need to pay attention to it.

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