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YouTubeManish Sharma
Most SQL Developers Get This Wrong #sql #tutorial
Most SQL learners get NULL completely wrong — and it silently breaks their queries without a single error message. In this video, you will learn exactly why NULL = NULL returns FALSE in SQL, why you should never use = NULL in your WHERE clause, and how NULL behaves differently in COUNT, JOINs, and aggregations. This is one of the most common ...
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Para aprender Java hoy en día, la regla general es enfocarse siempre en una versión LTS (Long-Term Support). Si estás comenzando o quieres ponerte al día en el mercado laboral actual, la recomendación se divide de la siguiente manera: 1. La versión ideal para aprender: Java 21 (LTS) Por qué: Es la versión con soporte a largo plazo más reciente y madura actualmente en adopción. Qué incluye: Incluye todas las mejoras modernas del lenguaje que aceleran y simplifican el desarrollo, como los Virtual
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