Here, we can merely use the ‘+’ operative in SQL. Write an SQL query to fetch all the students from table Students who either live in Delhi or studying a course with Course id -440? This question ...
Community driven content discussing all aspects of software development from DevOps to design patterns. The goal of Hibernate and JPA is to hide the complexity of SQL and relational databases from the ...
A common SQL habit is to use SELECT * on a query, because it’s tedious to list all the columns you need. Plus, sometimes those columns may change over time, so why not just do things the easy way? But ...
Read this SQL tutorial to learn when to use SELECT, JOIN, subselects and UNION to access multiple tables with a single statement. It’s sometimes difficult to know which SQL syntax to use when ...
I'm using a EF Core 6 DbContext transaction to create/update entities on a SQL Server temporal table. The data I'm processing (array of items) has a key (Year-Sequential, like: 2023-001, 2023-002, etc ...
An update to the cardinality estimator feature in SQL Server 2022 will be one of the biggest changes to the database engine since its inception. Database engines like SQL Server are incredibly complex ...
The data type xml cannot be used as an operand to the UNION, INTERSECT or EXCEPT operators because it is not comparable. It doesn't matter whether the XML field is affected or not in the query.
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