When developing database-driven .NET and .NET Core, regardless of the database we intend to deploy in the end, we will often want to work with a database engine that is lightweight and fast, in order ...

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 ...

Databases often suffer from the problem of having duplicate data. Duplicate data can cause inconsistencies in data analysis, provide inaccurate reports, and bloat databases. To prevent these problems, ...

A database query is a request for data from a database. It’s a way for a user or a program to retrieve data stored in a database by asking questions about the data. But how do you do that? In part 1 ...

1) Every name in Database must begins with "Alphabet". 2) We need to follow the mentioned charset i.e.,a-z,A-Z,0-9,@,$,#,_ 3) Names are not Case Sensitive. 4) Predefined keywords are not allowed. 5) ...

When a DELETE USER api is used to delete a user. It looks like following SQL query is executed to delete offline session details from OFFLINE_CLIENT_SESSION table. This query uses IN subquery, due to ...