Mikhail Gorbachev's policies of glasnost and perestroika had profound and unintended effects on the Soviet Union. In fact, many historians suggest these reforms led directly to the fall of communism and the breakup of the Soviet Union.
In SQL Server, you create a surrogate key by assigning an identity property to a column that has a number data type. A natural key is a naturally occurring descriptor of the data and one of a table's attributes that has no duplicate values. When you use a natural key as a table's primary key, each of the table's rows is uniquely identified.
MORE INFORMATION. To monitor the performance of an instance of SQL Server, you can trace the SQL Server event by using a server-side trace. To create the definition for the server-side trace, use the sp_trace_create system stored procedure.To start the trace, use the sp_trace_setstatus system stored procedure.To manually stop the server-side trace, you must locate the traceid trace event, stop the trace, and then delete the trace definition from the instance of SQL Server. To do so, follow these steps: 1  Start SQL Query Analyzer.o manually stop the server-side trace, you must locate the traceid trace event, stop the trace, and then delete the trace definition from the instance of SQL Server. To do so, follow these steps: 1  Start SQL Query Analyzer.