下载 "SQL Tutorial for Beginners"

In this step-by-step tutorial, learn how you can write your own SQL queries. You don't need any prior knowledge and we're going to use all free tools. By the end of this video, you'll know how to retrieve data from databases. At the end, I'll show you a neat trick to write some of the most complex queries with very little effort. SQL stands for structured query language. It's a language that you can use to talk to your database. You can also use it to retrieve, filter, sort, combine, add, update, and delete data in a database. It's basically a language you can use to interact with the database. The great thing is that anyone can learn how to write SQL queries. You definitely don't need a degree in computer science. And once you know it, you'll have another superpower that you can use at work. 👋 Additional resources - Download & install Microsoft SQL Server: https://www.microsoft.com/en-us/sql-server/sql-server-downloads - Download & install SQL Server Management Studio (SSMS): https://learn.microsoft.com/en-us/sql/ssms/download-sql-server-management-studio-ssms?redirectedfrom=MSDN&view=sql-server-ver15 - Sample database to follow along: https://1drv.ms/u/s!AmxrofZZlZ-whNsNYa3M9O0USq1WhQ?e=r06ifZ - Sample data in Excel format including flat file and tables: https://1drv.ms/x/s!AmxrofZZlZ-whNsGOcpx-aZS1RN2yA?e=My4Otp - SQL Functions: https://learn.microsoft.com/en-us/sql/t-sql/functions/functions?view=sql-server-ver15 ⌚ Timestamps 00:00 Introduction 00:37 Why learn SQL? 01:49 What is SQL? 02:25 What is a database? 03:09 Relational database management systems 04:11 Install Microsoft SQL Server 06:51 Install SQL Server Management Studio 07:26 Connect to server 08:13 Object Explorer 09:26 Restore sample database 10:42 Tables 14:33 Primary keys 15:57 Database diagrams 17:57 Data types 18:30 Select 24:50 Filtering with where 32:02 Inner join & outer join 38:21 Order by 39:01 Functions including getdate, sum, count 41:02 Group by 41:20 Bonus: Query designer 44:09 Wrap up 📃 Watch related playlists - Playlist with all my videos on SQL: https://www.youtube.com/playlist?list=PLlKpQrBME6xLJxrKUNTty3Ne8j_B0QYUT 📩 NEWSLETTER - Get the latest high-quality tutorial and tips and tricks videos emailed to your inbox each week: https://kevinstratvert.com/newsletter/ 🔽 CONNECT WITH ME - Official website: https://kevinstratvert.com/ - LinkedIn: https://www.linkedin.com/in/kevinstratvert/ - Discord: https://discord.com/invite/h7EkxyAGsP - Twitter: https://twitter.com/kevstrat - Facebook: https://www.facebook.com/unsupportedbrowser - TikTok: https://www.tiktok.com/@kevinstratvert - Instagram: https://www.facebook.com/unsupportedbrowser 🎁 TOOLS AND DISCOUNTS ✅ 🎙️ Voicemod AI Voice Changer | 5% off | https://www.voicemod.net/voicemod-partners/?refn=Kevin+Stratvert&tracking_id=qo9VIc0tF5jitAHSncvnZbqsUY4y3WrH ✅ 🌐 Squarespace Websites | https://www.squarespace.com/?clickid=0Oh3YmSvlxyPTNE2IdUp23P9UkHW2VWgrVoFyM0&irgwc=1 ✅ 🔍 Grammarly | https://grammarly.go2cloud.org/SH3nL ✅ 🛍️ Shopify | https://www.shopify.com/free-trial?irclickid=z6qQxpSvlxyPRhqx-Yx332coUkHW2VS4rVoFyM0&irgwc=1&partner=3548125&affpt=excluded&utm_channel=affiliates ✅ 📋 Notion | https://affiliate.notion.so/rffva4tr71ax ✅ 🖼️ Figma | https://psxid.figma.com/lqjg97licpry ✅ 🤖 ElevenLabs Text-to-Speech | https://try.elevenlabs.io/taqepq60mptr 🎒 MY COURSES - Go from Excel novice to data analysis ninja in just 2 hours: https://kevinstratvert.thinkific.com/courses/excel-for-beginners 🙏 REQUEST VIDEOS https://docs.google.com/forms/d/e/1FAIpQLSc8_xPyW8xNQz2vCkpc91nnDvmebvEB0thZpR0S8lhUF6l02A/viewform?usp=send_form 🔔 SUBSCRIBE ON YOUTUBE https://www.youtube.com/user/kevlers?sub_confirmation=1 🙌 SUPPORT THE CHANNEL - Hit the THANKS button in any video! - Amazon affiliate link: https://www.amazon.com?ie=UTF8&language=en_US ⚖ DISCLOSURE Some links are affiliate links. Purchasing through these links gives me a small commission to support videos on this channel. The price to you is the same.