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Learn Python, SQL & Data Analysis
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TikToktech.mind6已浏览 14.3万 次1 个月前
SQL vs. NoSQL Databases The choice between SQL and NoSQL impacts how your application stores, scales, and manages data. SQL (Relational Databases) SQL databases use a structured, table-based format with rows and columns. They rely on a predefined schema, meaning you must define the data structure before adding any information. Strengths: Excellent for complex queries, multi-row transactions, and maintaining strict data integrity (ACID compliance). Best Use: Financial systems, accounting software
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SQL vs. NoSQL Databases The choice between SQL and NoSQL impacts how your application stores, scales, and manages data. SQL (Relational Databases) SQL databases use a structured, table-based format with rows and columns. They rely on a predefined schema, meaning you must define the data structure before adding any information. Strengths: Excellent for complex queries, multi-row transactions, and maintaining strict data integrity (ACID compliance). Best Use: Financial systems, accounting software
TikTokgreghogg5已浏览 8.9万 次2 个月之前
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SQL Interview: Track Monthly Active Customers (Senior/Staff DS)
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🔥Most Asked SQL Interview Questions for Data Analysts | Intellipaat
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TikTokjcastagnoli已浏览 6.7万 次3 周前
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Дашборд тормозит 5 секунд на каждой загрузке из-за тяжёлой агрегации? В Postgres это чинится одной командой — без Redis. VIEW не спасёт: это просто сохранённый текст запроса, агрегация гоняется заново каждый раз. А MATERIALIZED VIEW хранит готовый результат на диске — любой SELECT отдаёт его за ~50 мс вместо 5 секунд. В 100 раз быстрее. Нюанс: сам не обновляется — нужен REFRESH (обычно по расписанию). Зато, в отличие от Redis, его можно индексировать, фильтровать в SELECT и джойнить как обычную
TikToksql.academy已浏览 6.2万 次1 个月前
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I develop websites/web apps and I also tutor python, java, c , SQL 📚💻 #machinelearning #softwaredeveloper #tutorials #Python #privatetutor
TikTokvoltrixcore.tech已浏览 1323 次1 周前
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Comment SQL buat website nya! Udah saatnya belajar SQL ga cuman dari nonton. Kamu harus banyakin prakteknya. Lebih mantep lagi kalo prakteknya langsung fokus ke case study. Aku udah siapin platform buat kamu belajar SQL secara interaktif nih. Mulai dari dasar sampe deep dive ke masing masing topik. Kamu juga bisa uji kemampuan kamu lewat tantangan dan project ya. Langsung cobain di ngulik sql ya.
TikTokngulik.data已浏览 4.1万 次1 个月前
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SQL in 30 Day 22: Mastering CASE Statements
TikTokmarytheanalyst已浏览 5.9万 次3 个月之前
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Tools Needed For Data Analytics | Intellipaat
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Top 3 Best Websites to Practice SQL for Data Analysts!
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Too Many SQL Joins? Here's the fix.
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SQL: Normalización 3FN para bases de datos
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