Gulfam | Data & Tech 📊| Interview Tips 💼| 10+ Yrs Mentor 🚀 on Instagram: "Day 47 | DATEDIFF vs TIMESTAMPDIFF in Real Interviews Most SQL learners calculate employee tenure like this: DATEDIFF(CURDATE(), join_date) But that gives DAYS. Not years. In interviews, they ask: • Calculate employee tenure • Find customer age • Measure delivery time in hours • SLA calculations If you don’t know when to use TIMESTAMPDIFF — you’ll lose simple marks. Remember: DATEDIFF → Days only TI
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Gulfam | Data & Tech 📊| Interview Tips 💼| 10+ Yrs …
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别再手动算日期了！SQL这3个函数，让你准点下班！🚀
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