Retrieves information about deadlocks from an internal buffer created by the database server.
Syntaxsa_report_deadlocks( ) Result set| Column name | Data type | Description |
|---|---|---|
| snapshotId | BIGINT | The deadlock instance (all rows pertaining to a particular deadlock have the same ID). |
| snapshotAt | TIMESTAMP | The time when the deadlock occurred. |
| waiter | INT | The connection handle of the waiting connection. |
| who | VARCHAR(128) | The user ID associated with the connection that is waiting. |
| what | LONG VARCHAR |
The command being executed by the waiting connection. This information is only available if you have turned on capturing of the most recently-prepared SQL statement by specifying the -zl option on the database server command line or have turned this feature on using the sa_server_option system procedure. |
| object_id | UNSIGNED BIGINT | The object ID of the table containing the row. |
| record_id | BIGINT | The row ID of the associated row. |
| owner | INT | The connection handle of the connection owning the lock being waited on. |
| is_victim | BIT | Identifies the rolled back transaction. |
| rollback_operation_count | UNSIGNED INT | The number of uncommitted operations that may be lost if the transaction rolls back. |
RemarksWhen the log_deadlocks option is set to On, the database server logs information about deadlocks in an internal buffer. You can view the information in the log using the sa_report_deadlocks system procedure.
PermissionsDBA authority
Side effectsNone
See also |
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