Inside SQL Tables Understanding Arity & Cardinality #sql #sqltutorial #sqlcommands
1:20
YouTubeGate Smashers
Inside SQL Tables Understanding Arity & Cardinality #sql #sqltutorial #sqlcommands
In this quick SQL tutorial, learn how structured data fits into a relational model—the table. We explain how columns (attributes) and rows (tuples) make up a table, and why tables are called relations in RDBMS. Using a simple student table example, we clarify key terms such as arity (number of columns) and cardinality (number of rows ...
已浏览 2.1万 次4 天之前
Query optimization Tutorial
Query optimization techniques in SQL Server: the basics
Query optimization techniques in SQL Server: the basics
sqlshack.com
已浏览 168 次2018年5月30日
SQL Performance Secrets You Must Know
1:19
SQL Performance Secrets You Must Know
YouTubeManish Sharma
已浏览 4238 次1 个月前
Power BI Optimization Tamil | Power Query| Query Folding & Data Reduction Explained
17:44
Power BI Optimization Tamil | Power Query| Query Folding & Data Reduction Explained
YouTubeBI Brilliance Tamil
已浏览 560 次3 周前
热门视频
MongoDB vs PostgreSQL in 60 Seconds
1:26
MongoDB vs PostgreSQL in 60 Seconds
YouTubeSimplilearn
已浏览 7869 次5 天之前
Data Science Course (2026) | Learn Data Science Full Course FREE | Intellipaat
10:30:36
Data Science Course (2026) | Learn Data Science Full Course FREE | Intellipaat
YouTubeIntellipaat
已浏览 4334 次2 天之前
Power BI Full Course 2026 | Power BI Tutorial for Beginners | Power BI Training | Simplilearn
4:42:27
Power BI Full Course 2026 | Power BI Tutorial for Beginners | Power BI Training | Simplilearn
YouTubeSimplilearn
已浏览 6799 次3 天之前
Query optimization Techniques
SQL Query Optimization - Tips and Techniques
SQL Query Optimization - Tips and Techniques
intellipaat.com
已浏览 9万 次2016年4月22日
SQL Query Optimization and Tuning - DNSstuff
SQL Query Optimization and Tuning - DNSstuff
dnsstuff.com
2023年10月30日
ONE Simple Trick to Optimize SQL Query and Boost Performance!
1:01
ONE Simple Trick to Optimize SQL Query and Boost Performance!
YouTubeManish Sharma
已浏览 1.3万 次2024年10月3日