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When we began learning SQL, almost everyone of us started by using the wildcard operator: "SELECT * ..." It is incredibly convenient. It tells the database engine to fetch every single column from the particular table, and we don't have to type out every column name individually.
While "SELECT * .." is fine for quick troubleshooting or ad-hoc debugging on ...
In Part 1 of this series, we explored how CROSS APPLY can be used to retrieve related rows based on values from the current row of the outer table. One important characteristic of CROSS APPLY is that it returns only rows where the co...
There are several reasons to use a local AI model instead of ChatGPT, Gemini, or other online AI services:
First, you are paranoic and you believe that the CIA is spying on you ??? Also, there is confidential information in your company, and you do not trust this AI public service. You work in a place where the internet is not enabled due to security policie...