Each rowid represents the physical address of a row within the database and as such is the quickest way to access the row.
In processes where data is rapidly selected and updated the use of rowids can improve performance.
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Destroy all blocks, clicking on groups having the same color.
Destroying multiple blocks with one click equals more points!
Chef Express ran the cafeteria at the Gadgetworks, Inc. Along with their normal daily offerings, each day they offered specials that changed from week to week.
The script creates a test table as a copy of the all_objects view and then loops through the table twice updating each row at a time.
Just enjoy it and leave a comment if you want me to explain something better. In “Release” folder there is also an executable file just in case you want to try it directly.
The sourcecode comes with SDL includes and libs ready to compile in Visual C Express Edition 2008.
Procedural PL/SQL code and SQL code are processed by different engines, so switching between the two languages requires context switches that take time and resources.
During small operations this overhead is not noticeable, but it can cause a significant overhead for batch operations.