Useful tips for everyday
Is MERGE better than update in Oracle? The UPDATE statement will most likely be more efficient than a MERGE if the all you are doing…
What is a set returning function? A Set Returning Function is a PostgreSQL Stored Procedure that can be used as a relation: from a single…
Should I keep old backups? Regular backups There’s no set answer as to how long you should keep these, as it really depends on your…
Where are MySQL databases stored? /var/lib/mysql Typically, MySQL will store data in the default directory of /var/lib/mysql. Where is mysql path in Windows? To view…
What is the benefit of using cursors? Cursor basically works as for/While loop. Advantages of using Cursor: Using Cursor we can perform row by row…
What is set transaction isolation level? The transaction isolation levels define the type of locks acquired on read operations. Shared locks acquired for READ COMMITTED…
What happens when MySQL commands are out of sync? If you get Commands out of sync; you can’t run this command now in your client…
Which system requires the .deb installation of MongoDB? Install MongoDB Community Edition on Debian. MongoDB Atlas is a hosted MongoDB service option in the cloud…
How do I remove a value from a redundant list? First we have a List that contains duplicates: A List with Duplicates. mylist = [“a”,…
How to use the lookup field in a query? Although you cannot directly use the Display value in a query, you can use the corresponding…