SID

NUMBER

Session ID of the apply server's session

SERIAL#

NUMBER

Serial number of the apply server's session

APPLY#

NUMBER

Apply process number. An apply process is an Oracle background process, prefixed by ap.

APPLY_NAME

VARCHAR2(128)

Name of the apply process

SERVER_ID

NUMBER

Parallel execution server number of the apply server

STATE

VARCHAR2(20)

State of the apply server:

• INITIALIZING - Starting up

• IDLE - Performing no work

• RECORD LOW-WATERMARK - Performing an administrative job that maintains information about the apply progress, which is used in the ALL_APPLY_PROGRESS and DBA_APPLY_PROGRESS data dictionary views

• ADD PARTITION - Performing an administrative job that adds a partition that is used for recording information about in-progress transactions

• DROP PARTITION - Performing an administrative job that purges rows that were used to record information about in-progress transactions

• EXECUTE TRANSACTION - Applying a transaction

• WAIT COMMIT - Waiting to commit a transaction until all other transactions with a lower commit SCN are applied. This state is possible only if the COMMIT_SERIALIZATION apply process parameter is set to a value other than DEPENDENT_TRANSACTIONS and the PARALLELISM apply process parameter is set to a value greater than 1.

• WAIT DEPENDENCY - Waiting to apply a logical change record (LCR) in a transaction until another transaction, on which it has a dependency, is applied. This state is possible only if the PARALLELISM apply process parameter is set to a value greater than 1.

• ROLLBACK TRANSACTION - Rolling back a transaction

• TRANSACTION CLEANUP - Cleaning up an applied transaction, which includes removing LCRs from the apply process's queue

• WAIT FOR CLIENT - Waiting for an XStream client application to request more LCRs

• WAIT FOR NEXT CHUNK - Waiting for the next set of LCRs for a large transaction

XIDUSN

NUMBER

Transaction ID undo segment number of the transaction currently being applied

XIDSLT

NUMBER

Transaction ID slot number of the transaction currently being applied

XIDSQN

NUMBER

Transaction ID sequence number of the transaction currently being applied

COMMITSCN

NUMBER

Commit system change number (SCN) of the transaction currently being applied

DEP_XIDUSN

NUMBER

Transaction ID undo segment number of a transaction on which the transaction being applied by this apply server depends

DEP_XIDSLT

NUMBER

Transaction ID slot number of a transaction on which the transaction being applied by this apply server depends

DEP_XIDSQN

NUMBER

Transaction ID sequence number of a transaction on which the transaction being applied by this apply server depends

DEP_COMMITSCN

NUMBER

Commit system change number (SCN) of the transaction on which this apply server depends

MESSAGE_SEQUENCE

NUMBER

Number of the current message being applied by the apply server. This value is reset to 1 at the beginning of each transaction.

TOTAL_ASSIGNED

NUMBER

Total number of transactions assigned to the apply server since the apply process was last started

TOTAL_ADMIN

NUMBER

Total number of administrative jobs done by the apply server since the apply process was last started. See the STATE information in this view for the types of administrative jobs.

TOTAL_ROLLBACKS

NUMBER

Number of transactions assigned to this server which were rolled back

TOTAL_MESSAGES_APPLIED

NUMBER

Total number of messages applied by this apply server since the apply process was last started

APPLY_TIME

DATE

Time the last message was applied

APPLIED_MESSAGE_NUMBER

NUMBER

Number of the last message applied

APPLIED_MESSAGE_CREATE_TIME

DATE

Creation time at the source database of the last captured message applied. No information about user-enqueued messages is recorded in this column.

ELAPSED_DEQUEUE_TIME

NUMBER

Time elapsed (in hundredths of a second) dequeuing messages since the apply process was last started

ELAPSED_APPLY_TIME

NUMBER

Time elapsed (in hundredths of a second) applying messages since the apply process was last started

COMMIT_POSITION

RAW(64)

Commit position of the transaction. This column is populated only for an apply process that is functioning as an XStream outbound server or inbound server.

DEP_COMMIT_POSITION

RAW(64)

Commit position of the transaction the slave depends on. This column is populated only for an apply process that is functioning as an XStream inbound server.

LAST_APPLY_POSITION

RAW(64)

For inbound servers, the position of the last message applied; for outbound servers, the position of the last message sent to the XStream client application. This column is populated only for an apply process that is functioning as an XStream outbound server or inbound server.

TRANSACTION_ID

VARCHAR2(128)

Transaction ID that the slave is applying. This column is populated only for an apply process that is functioning as an XStream inbound server.

DEP_TRANSACTION_ID

VARCHAR2(128)

Transaction ID of the transaction the slave depends on. This column is populated only for an apply process that is functioning as an XStream inbound server.

CON_ID

NUMBER

The ID of the container to which the data pertains. Possible values include:

• 0: This value is used for rows containing data that pertain to the entire CDB. This value is also used for rows in non-CDBs.

• 1: This value is used for rows containing data that pertain to only the root

• n: Where n is the applicable container ID for the rows containing data

TOTAL_LCRS_RETRIED

NUMBER

Total number of LCRs retried by this server

LCR_RETRY_ITERATION

NUMBER

Retry iteration for this transaction by this server

TOTAL_TXNS_RETRIED

NUMBER

Total transactions retried by this server

TXN_RETRY_ITERATION

NUMBER

Total retry iterations by this server

TOTAL_TXNS_RECORDED

NUMBER

Total transactions recorded in error queue by this server