Useful tips for everyday
Is it more efficient to use ASCII or UTF-8 as an encoding? @Pacerier: Any ASCII string is a UTF-8 string, so there is no difference.…
Can a database have multiple tables with same name? You can have tables of the same name only if they are in separate databases, and…
Does Postgres cache query plan? PostgreSQL does not have a shared query plan cache, but it has an optional query plan cache for prepared statements.…
Where should I run SQLCMD? Start the sqlcmd utility and connect to a default instance of SQL Server On the Start menu click Run. In…
Can we update table in SQL? UPDATE queries can change all tables’ rows, or we can limit the update statement affects for certain rows with…
Which allows organizations to work with multiple data sources? A data warehouse centralizes and consolidates large amounts of data from multiple sources. Its analytical capabilities…
Can delete command delete single or multiple columns from a table? The DELETE Statement in SQL is used to delete existing records from a table.…
How do I put my database in restoring mode? Back up the tail of the log for each database on the Primary, making sure to…
Does MariaDB work with MySQL? MariaDB is intended to maintain high compatibility with MySQL, ensuring a drop-in replacement capability with library binary parity and exact…
What are three types of binary relationships? Binary Relationship in Database One-to-One. One-to-many. Many-to-Many. What is a binary relationship set? In mathematics, a binary relation…