Databases Reference
In-Depth Information
underlying database objects at precompile time, wants to always use the most
optimized access path based on current database statistics, or authorization of
the SQL statement needs to be determined at runtime.
Figure 1-1 demonstrates a general overview of embedded SQL creation.
Figure 1-1 Embedded SQL creation overview
Driver support
More common application solutions are developed using drivers. When
accessing a database using various available drivers, driver manager is usually
involved. The driver manager provides a set of industry standard interfaces
(APIs) to access a data source using data source specific drivers. Applications
utilizing drivers are compiled and linked with the driver manager's libraries to
invoke standardized APIs.
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