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Posts on tips and tricks, using and learning about SQL for database development and analysis.

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Why Using FLOAT for Financial Pipelines is a Silent $100k Trap (and How PostgreSQL NUMERIC Saves Your Ledger)

Why Using FLOAT for Financial Pipelines is a Silent $100k Trap (and How PostgreSQL NUMERIC Saves Your Ledger)

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2 min read
How to Master Intermediate SQL in Under 10 Minutes

How to Master Intermediate SQL in Under 10 Minutes

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5 min read
'Column Must Appear in the GROUP BY Clause' — Why SQL Won't Let You Do That

'Column Must Appear in the GROUP BY Clause' — Why SQL Won't Let You Do That

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3 min read
SQL Window Functions Explained

SQL Window Functions Explained

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4 min read
Connecting Power BI to SQL Databases

Connecting Power BI to SQL Databases

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10 min read
Mastering SQL Joins and Window Functions: A Comprehensive Guide

Mastering SQL Joins and Window Functions: A Comprehensive Guide

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4 min read
LIKE in SQL, Explained for Beginners

LIKE in SQL, Explained for Beginners

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7 min read
Learning SQL? Here is a Practical Guide to Read and Write SQL Queries.

Learning SQL? Here is a Practical Guide to Read and Write SQL Queries.

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6 min read
Ottoch - ask your database questions in you plain language, self-hosted....

Ottoch - ask your database questions in you plain language, self-hosted....

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1 min read
SQL PRACTICAL GUIDE

SQL PRACTICAL GUIDE

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4 min read
SQL vs. NoSQL — stop asking the wrong question

SQL vs. NoSQL — stop asking the wrong question

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4 min read
Open-source tool: Practical experience in converting large quantities of SQL code syntax : 'PIVOT' function rewrite (Case 2)

Open-source tool: Practical experience in converting large quantities of SQL code syntax : 'PIVOT' function rewrite (Case 2)

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6 min read
Your text-to-SQL agent picks tables before security runs. Here’s the fix.

Your text-to-SQL agent picks tables before security runs. Here’s the fix.

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2 min read
When SQL Has Nothing to Say: Understanding NULLs

When SQL Has Nothing to Say: Understanding NULLs

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3 min read
SQL for Beginners: Window Functions vs GROUP BY

SQL for Beginners: Window Functions vs GROUP BY

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4 min read
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