SQL is power. Until a missing WHERE deletes all users. I did that once. This tool compares queries before execution. Now I sleep without nightmares.

Why SQL Needs Care

Case sensitivity bites. SELECT * FROM Users vs SELECT * FROM users. The tool highlights the table name. PostgreSQL cares. MySQL doesn’t. The tool doesn’t judge. Just shows.

Do you write JOINs? I mixed ON and WHERE. The tool showed the wrong filter. Result? 10,000 duplicate rows. Fixed in minutes. Pride intact.

Query Disasters Avoided

Case 1: A DELETE without a condition. The tool flagged the empty WHERE. Case 2: A LIKE '%test%' became = 'test'. The tool showed the change. Reports broke. Fixed fast.

-- Version A
SELECT id, name FROM products WHERE price > 100;

-- Version B
SELECT id, name FROM product WHERE price > 100;  -- Missing 's'
    

The tool highlights product. My dashboard showed zero data. Facepalm moment.

For Database Teams

We manage 200+ stored procedures. Tom writes EXEC. Jane uses CALL. The tool compares their scripts. Last month a TRUNCATE snuck into a script. The tool found it. Audit passed.

Pro tip: Compare schema migrations. I spotted a missing ALTER TABLE. The tool showed the gap. No broken deploys.

SQL’s Sharp Edges

This tool won’t optimize your queries. But it shows where you dropped an index. Use it with backups. Always. What’s your worst SQL mistake? Mine was a DROP DATABASE in a script. The tool would’ve caught it. Now it does.

Final thought: SQL is a scalpel. This tool is the safety guard. Cuts data, not careers.