SYSTRIGGERS
Describes the database's triggers.
| Column Name | Type | Length | Nullability | Contents |
| TRIGGERID | CHAR | 36 | false | unique identifier for the trigger |
| TRIGGERNAME | VARCHAR | 128 | false | name of the trigger |
| SCHEMAID | CHAR | 36 | false | id of the trigger's schema (join with SYSSCHEMAS. SCHEMAID) |
| CREATIONTIMESTAMP | TIMESTAMP |
| false | time the trigger was created |
| EVENT | CHAR | 1 | false | 'U' for update, 'D' for delete, 'I' for insert |
| FIRINGTIME | CHAR | 1 | false | 'B' for before 'A' for after |
| TYPE | CHAR | 1 | false | 'R' for row, 'S' for statement |
| STATE | CHAR | 1 | false | 'E' for enabled, 'D' for disabled |
| TABLEID | CHAR | 36 | false | id of the table on which the trigger is defined |
| WHENSTMTID | CHAR | 36 | true | used only if there is a WHEN clause (not yet supported) |
| ACTIONSTMTID | CHAR | 36 | false | id of the stored prepared statement for the triggered-SQL-statement (join with SYSSTATEMENTS. STMTID) |
| REFERENCEDCOLUMNS | org.apache.derby.catalog. ReferencedColumns: This class is not part of the public API. |
| true | descriptor of the columns referenced by UPDATE triggers |
| TRIGGERDEFINITION | LONG VARCHAR |
| true | body of CREATE TRIGGER statement |
| REFERENCINGOLD | BOOLEAN |
| true | whether or not the REFERENCINGNAME, if non-null, refers to the OLD row or table |
| REFERENCINGNEW | BOOLEAN |
| true | whether or not the REFERENCINGNAME, if non-null, refers to the NEW row or table |
| REFERENCINGNAME | VARCHAR | 128 | true | the correlation name or identifier from the REFERENCING clause |
Any SQL text that is part of a triggered-SQL-statement is compiled and stored in SYSSTATEMENTS. ACTIONSTMTID and WHENSTMTID are foreign keys that reference SYSSTATEMENTS.STMTID. The statements for a trigger are always in the same schema as the trigger.
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