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MD8284A/B Datasheet | Central Semiconductor Corp
Part No. : MD8284A/B
Description : Dual Transistors
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Page Number : 1
Manufacturer : Central Semiconductor Corp
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MD8284A/B Article About

Li-Sheng Wang said most of the existing enterprise business application software systems are difficult to resolve one of the biggest challenges is the technical level is difficult with the changing needs of the business layer and flexible incarnations, and acting freely. Insist on changes to the technical level, you need professionals to re-welded up and down, not only costly, but beating, troubles unpredictable. The reason is that existing systems, subsystems, between the various elements of a "tightly coupled structure", split, and communication is very flexible. Reform of SOA, the business layer in the traditional and technology layers to add a service layer, service layer is a protocol or specification by the application layer from the underlying technology transfer out, to be packaged, flexible according to needs of the business layer combination. The so-called business process is to function in different departments together under the requirements of customers, they used the same data base, the exchange between different databases and links. But the companies according to different functions of each department or work. Then the new service in the future of enterprise architecture, will be through a "process engine" will integrate these functions, "process engine" is the role of different functions inside the computer system implementation.
The daily transaction log backup log files can effectively prevent the excessive consumption of disk space. The backup process will no longer need to log in some cut off. Method is to first cut away the old record marked as inactive, then a new log to cover the position of the old logs, so you can prevent the swelling volume of the transaction log. If you can not on the regular log backup jobs, the best database to "simple recovery model." In this mode, the system will force the transaction log records in each marker, the automatic cut-off operation in addition to the new logs overwrite old logs. Be cut back or in the process of the old landmarks marked as inactive, it makes the old record of the transaction can be overwritten, but this does not reduce the transaction log disk space actually occupied. Even if the log is no longer used, it will still take up space. Therefore, in the maintenance, you also need to compress the transaction log. Compression method is to delete the transaction log of inactive records, thereby reducing the physical space occupied by the log file disk space.

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