Useful tips for everyday
What is encoding in Postgres? The character set support in PostgreSQL allows you to store text in a variety of character sets (also called encodings),…
Can JSON columns be indexed? JSON columns cannot be indexed. You can work around this restriction by creating an index on a generated column that…
How does full text search work in SQL Server? Full-text queries perform linguistic searches against text data in full-text indexes by operating on words and…
Can you store pictures in a database? A database gives you the opportunity to store photos and other small images in a database table. A…
How do you create a conditional query in access? To add criteria to an Access query, open the query in Design view and identify the…
How to delete database mail in SQL Server? In SQL Server, you can use the sysmail_delete_profile_sp stored procedure to delete an existing Database Mail profile.…
What are types in SQL Server? Data types in SQL Server are organized into the following categories: Exact numerics. Unicode character strings. Approximate numerics. Binary…
How subquery works in SQL Server? A subquery is a query that is nested inside a SELECT , INSERT , UPDATE , or DELETE statement,…
How does vertical partitioning improve performance? Slow moving data is a good candidate for an application to cache in memory. Sensitive data can be stored…
How many primary key define in one table in Oracle? one primary key A table can have at most one primary key. You can, if…