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.
4. Ignore following message. Just click âYesâ button. 5. Select âCreate and configure a databaseâ then click âNextâ button. 6. Select âDesktop Classâ and click âNextâ button. 7. On the screen you need to define global database name and pluggable database name. Rest of options you can keep default.Then click âNextâ button. 8.Accept default settings then click âNextâ button. 9. Summary screen just before installation.. Ignore following message. Just click âYesâ button. 5. Select âCreate and configure a databaseâ then click âNextâ button. 6. Select âDesktop Classâ and click âNextâ button. 7. On the screen you need to define global database name and pluggable database name. Rest of options you can keep default.