: emp_id (integer, should not be NULL and should be a primary key)Q : emp_name (text, should not be NULL)Q : age (integer, should have a check constraint to ensure the age is at least 18)Q : email ...

AI has transformed the way companies work and interact with data. A few years ago, teams had to write SQL queries and code to extract useful information from large swathes of data. Today, all they ...

SSIS is a popular and mature tool for performing data movement and cleanup operations. In the Microsoft ecosystem, SSIS is one of the most common extract, load, and transform (ETL) tools in use today.

If you buy something from a link, Vox Media may earn a commission. See our ethics statement. The Netflix series Chef’s Table brings viewers into some of the world’s greatest kitchens. And while the ...

So, my client and their subcontractor(s) have found themselves in a bit of a pickle, as no one bothered to spec or price a DB for a software implementation, so now I've been handed the bag. The client ...

Assuring optimal performance of database applications starts with coding properly formulated SQL. Poorly written SQL and application code is the cause of most performance problems. As much as 75% of ...

-- Insert the data from the example above. -- Add primary keys and foreign keys. -- Have in mind that table student_exams should have a composite primary key.

Shelley Doll finishes her coverage of SQL data types with an overview of datetime and interval data types. Learn more about the basic syntax of these standard SQL types. Datetimes and intervals are ...