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Reduce the number of Db2 threads when replicating table with XML column
When a table with a XML column is replicated, we observed a high number of SMF Db2 accounting records, one for each row that a have a XML column.
The records are due to Db2 threads created by the replication process.
As the Db2 SMF records are g...
Document process for publication as opposed to subscription migration
The manuals document the process to migrate ALL *subscriptions* to a new Q capture task. Our scenario involved migrating single publications one-by-one (by sendq) to an existing actively used Q capture task. Please update the replication guide for...
After install ASNMON, ASNMON will show all history alert information in the first start, ICBC expect to use any command or parameters to suppress the history alert while start, only show the current alert information.
System : InfoSphere Replication Server(Q replication) is real-time database replication solution for better control of DB2 replication. Description : Customer want to check or before image and after image condition each row processing to control s...
To enable capture log buffer flush periodically (Infosphere Replication Server)
Sometimes, there are too small data to replicate but busy logging which are not interested in. Q Capture log read should be quick enough even busy logging. Customer request the periodical flush of log buffer(logrdbufsz) with optional new parameter.
z/OS has 65536 code page for Chinese character. CAST_TO_VARCHAR2 does not make any change in character. But the expression with Chinese character causes performance problem. For character in RAW to VARCHAR2, Qrep should ignore the expression CAST_...
ICBC load existing data from z/OS db2 to Oracle: z/OS exported file -> UDS (ICBC application) decoding -> SQL Loader import to Oracle DB. For QREP automatic Refresh, decoding with customized decoding rule is required. It should be:z/OS expor...
Our customer is adopting QREP for data replication under proxy mode. And they find that QREP couldn't support LOB replication when QCAP runs in proxy DB2 Data Sharing Group. However, our customers have some table defined with LOB columns. So they ...
Alternative of Updating All or Changed Fields for SQL Update
When replication of SQL Update, only changed fields are updated now. The data consistency cannot be guaranteed if any changes are happened during the period of no replication is executed. All fields updating is required for SQL Update data replica...
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