Joining a table with seven million rows to a table with 30 million rows via inner join. Writing a simple INNER JOIN on X.a = Y.B in SQL results in a query that takes a couple of seconds to execute in ...

Nowadays, working with data is very important in the decision-making process. A large amount of data is generated daily and needs to be stored efficiently. The database system makes it possible to ...

PDO is PHP Data Objects which is used to connect to any database. Benefit of using PDO is that if there is any problem in our query it has an exception class to handle it. If any exception thrown to ...

SQL Server 2016 and Azure SQL Database both give you tables that automatically keep track of changes to your data. ... (StartTime, EndTime), StartTime datetime2 GENERATED ALWAYS AS ROW START HIDDEN ...