| AbsSqlConnection | Represents a database connection to sql engine |
| AbsSqlStatement | Handle to the sql statement |
| ByteInt | Represents 8 bit integer |
| ComparisionOp | Comparision operators supported by the database system |
| Condition | Represents the condition part of SQL Query |
| Connection | Represents a database connection |
| DatabaseManager | Interface for database management operations |
| DataType | Data Types supported by the database system |
| Date | Represents Date Data type |
| DbRetVal | Database Return Value |
| FieldNameList | Field name list used to specify composite key while creating index |
| HashIndexInitInfo | Represents hash index definition used to create index |
| IndexInitInfo | Represents index definition used to create index |
| LogicalOp | Logical operators supported by the database system |
| Predicate | Represents a single term in the condition |
| SqlFactory | Factory class to create appropriate implementation of SQL API |
| Table | Handle to the database table |
| TableDef | Represents table definition used to create the table |
| Time | Represents Time Data type |
| TimeStamp | Represents TimeStamp Data type |
| UserManager | Interface for user management operations |