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Sometimes we need to add a column that we require into the table. we can do this by using add keyword with alter command.syntax:to add a column into a table, use the following syntax:alter table table ...

When I try to insert a row into a table that contains a generated column, I receive an error, for example (this is the SQL code generated by phpMyAdmin): It seems that the problem is that phpMyAdmin ...

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 ...

When you insert new records into an SQL database, ... such as "INSERT INTO your_table (column1,column2) ... the query will update the existing column instead of erroring out.

Arthur Fuller explores the value of identity columns and the usefulness of their arbitrary values and discusses ways to use SQL Server 2000's IDENTITY_INSERT setting.