Hello Reader!If you wish to add, delete or modify columns in an existing table you can do this with the help of ALTER command. The syntax to change or we can say to modify a column in an existing ...

The primary key column is often set to auto-increment when constructing a SQL Server database. To achieve this, the IDENTITY property is enabled on the primary key column. The starting value and ...

The error “Column is invalid in the select list because it is not contained in either an aggregate function or the GROUP BY clause” occurs in SQL when a SELECT ...