The SYSALIASES table describes the procedures, functions, user-defined types, and user-defined aggregates in the database.
The following table shows the contents of the SYSALIASES system table.
| Column Name | Type | Length | Nullable | Contents |
|---|---|---|---|---|
| ALIASID | CHAR | 36 | false | Unique identifier for the alias |
| ALIAS | VARCHAR | 128 | false | Alias (in the case of a user-defined type or user-defined aggregate, the name of the user-defined type or user-defined aggregate) |
| SCHEMAID | CHAR | 36 | true | Reserved for future use |
| JAVACLASSNAME | LONG VARCHAR | 32,700 | false | The Java class name |
| ALIASTYPE | CHAR | 1 | false | 'F' (function), 'P' (procedure), 'A' (user-defined type), 'G' (user-defined aggregate) |
| NAMESPACE | CHAR | 1 | false | 'F' (function), 'P' (procedure), 'A' (user-defined type), 'G' (user-defined aggregate) |
| SYSTEMALIAS | BOOLEAN | 1 | false | true (system supplied or built-in alias)
false (alias created by a user) |
| ALIASINFO | org.apache.derby.
catalog.AliasInfo This class is not part of the public API. |
2,147,483,647 | true | A Java interface that encapsulates the additional information that is specific to an alias |
| SPECIFICNAME | VARCHAR | 128 | false | System-generated identifier |