Either the DBA or the applications developer, or both working jointly, can be responsible for the actual creation of the tables, depending upon the practices for a site.
Working with the application developer, consider the following guidelines when designing tables: Before creating a table, you should also determine whether to use integrity constraints.
A cluster is a group of tables that share the same data blocks because they share common columns and are often used together.
After you create a table, you insert rows of data using SQL statements or using an Oracle bulk load utility.
Table data can then be queried, deleted, or updated using SQL.
Usually, the application developer is responsible for designing the elements of an application, including the tables.
Database administrators are responsible for establishing the attributes of the underlying tablespace that will hold the application tables.
data type, define precision and scale instead of width. You can invoke Transparent Data Encryption to encrypt data before storing it.
A row is a collection of column information corresponding to a single record. If users attempt to circumvent the database access control mechanisms by looking inside Oracle data files directly with operating system tools, encryption prevents these users from viewing sensitive data. A is like any other table column, except that its value is derived by evaluating an expression.