Useful tips for everyday
How is geographic distance measured? Use a ruler to measure the distance between the two places. For example, if the scale says 1 inch =…
Can you create included columns in a non-clustered index? This means a reduced number of I/O operations to get the data. The creation of Included…
What is query cost in MySQL? One component you should look at is “query cost.” Query cost refers to how expensive MySQL considers this particular…
How do I import a DB dump into pgAdmin? 6 Answers In pgAdmin, select the required target schema in object tree ( databases -> your_db_name…
How do I return 0 instead of NULL in SQL? When you want to replace a possibly null column with something else, use IsNull. This…
How to query for data from multiple tables? In the query, we asked for for the ID from cars and the model from models. However,…
What is SQL Server transaction log? Every SQL Server database has a transaction log that records all transactions and the database modifications made by each…
How do I bind a certificate in SQL Server? In SQL Server Configuration Manager, in the console pane, expand SQL Server Network Configuration. Right-click Protocols…
When connecting to MySQL what will happen if no hostname is provided? If you don’t give a hostname when connecting to mysqld, a MySQL client…
Which SQL statement find the price of the cheapest product? Use the MIN function to select the record with the smallest value of the Price…