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TIBCO iProcess® Engine 11.9.1

# sw_db_deadqueue

The `sw_db_deadqueue` table holds failed messages from the sw_db_bgqueue_n, sw_db_wisqueue_n and sw_db_predictqueue_n tables.

## Structure

The `sw_db_deadqueue` table has the following structure:

    TABLE sw_db_deadqueue (
    	failed_by	varchar(128)			NOT NULL,
    	rowid		numeric(15)			NOT NULL
    GENERATED ALWAYS AS IDENTITY (START WITH 1, INCREMENT BY 1),
    	last_failed	numeric(10)			,
    	failure_count	integer				NOT NULL,
    	msg_id		varchar(16) FOR BIT DATA 	NOT NULL,
    	msg_hdr		varchar(500)			NULL,
    	msg_data	varchar(1000)			NOT NULL
    	priority	integer				NOT NULL)

Column | Description
`failed_by` | Identifies the queue table that this message originates from. One of the following processes: BG (for a message from a sw_db_bgqueue_n table). WIS (for a message from a sw_db_wisqueue_n table). BGPREDICT (for a message from a sw_db_predictqueue_n table).
`rowid` | Identifier of the row in the table for this message.
`last_failed` | Number of seconds since January 1st, 1970, when this message last failed to be processed.
`failure_count` | Number of times that this message has failed to be processed. Note: Messages in this table are not retried.
`msg_id` | Unique identifier of this message.
`msg_hdr` | Header data associated with this message.
`msg_data` | Message data.
`priority` | Message queue priority. The lower this value is, the higher the message queue priority is. The default value is 50.

## Primary Key

No primary key is defined for this table.

## Indexes

The following index is defined for this table.

Index Name | Indexed Column(s)
`idx_deadqueue` 1 | `row_id`

## Table Activity

The `sw_db_deadqueue` table contains one row for each message that has exceeded its `IQL_RETRY_COUNT` threshold value.

Rows are added, updated and deleted in the following situations.

A row is... | When...
added | a message is moved to this table from a sw_db_bgqueue_n, sw_db_wisqueue_n or sw_db_predictqueue_n table, because it has exceeded the `IQL_RETRY_COUNT` value.
updated | never.
deleted | never.

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TIBCO iProcess® Engine