Break Free with DB2 9.7: A tour of Cost-Slashing New by Paul Zikopoulos, Belal Tassi, Visit Amazon's George Baklarz

By Paul Zikopoulos, Belal Tassi, Visit Amazon's George Baklarz Page, search results, Learn about Author Central, George Baklarz, , Chris Eaton

THE final facts SERVER--PREVIEW THE COST-SLASHING NEW positive factors OF DB2 9.7

The DB2 nine expertise platform is a state of the art hybrid database server that provides best garage optimizations, scalability, availability, and extra. DB2 9.7 takes the associated fee discount rates, ease of use, and safety of DB2 9.5 to the following point. This succinct advisor might help you get rid of enterprise limitations and achieve an within view into the most important positive aspects that may shop your corporation money and time with the last word database server--DB2 9.7.

This booklet, including IBM DB2 nine New Features (McGraw-Hill, 2007), provide you with the great wisdom you want to start with the most recent DB2 free up. test the hot good points by way of downloading DB2 Express-C 9.7--it is unfastened to boost, installation, and distribute (with no consumer and database measurement obstacles) and contours pureXML know-how. visit ibm.com/db2/express.

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Rolls forward involved to a consistant point in time (PIT). 3. Validates the schemas that you specified for transport. 7: A Tour of Cost-Slashing New Features 4. Transfers ownership of the specified table spaces to the target database. 5. Re-creates the schema in the target database. Under the covers, transportable schema uses a small staging database mainly consisting of the system catalog table space from the backup image. By default, this supporting temporary database will be created in the DFTDBPATH as part of the move operation.

Unique or primary indexes are required if XML or large object (LOB) columns are present; we recommend this as a best practice for efficiency reasons anyway, but it’s a requirement for online table move operations involving these data types. Performing an online move for a table without any unique indexes might result in a complex or expensive REPLAY phase, so this is not recommended for production table moves. 7: A Tour of Cost-Slashing New Features ● The source table must be a simple regular table: Materialized Query Tables (MQTs), typed tables, system tables, views, and so on, are not supported by this utility.

Specifically, the space made available within the table after a data roll-out operation could be used only by the table and not by other tables (or objects) within the same table space, as illustrated in Figure 1-5. In Figure 1-5, you can see the data for the 2004 and NW dimensions have been rolled out of the table. On the right side of this figure, you can see that the space occupied by this dimensional set is still under the control of the MDC table. So what’s the problem? Imagine a scenario where you had a massive roll-out of data but experienced a table space full condition for other tables in the same table space, even though there was all this empty space in the MDC table.

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