During a full database restore, you have a power outage and the restore fails after running for 6 hours out of an estimated 7 hours to complete. What would you do when power is restored to recover the database in the most effective way? Re-write this query so it will use the index on the Datecreated column. (1) SELECT * FROM order_header WHERE DateDiff(hh,Datecreated,getdate()) < 2 SELECT * FROM order_header WHERE DateDiff < 2 Your clustered SQL Server 2000 production database
Latest Answer : In simple terminology, combination of S/w(Operating system et all) and hardware(Disk Drives) on which these S/W(OS) are loaded, are vital for smooth runing of system. Failure of any of these tools make a system to crash.now if any software(OS) ...
What is the effect on database at the time of total power failure when an UPDATE query is under execution in Oracle 9i?
Latest Answer : When the power failure occurs while an update statement is running. When the database is restarted it does an automatic recovery, when it finds the update statements pending, it performs a rollback of the update statement.Regards-Ram ...
Using XMLType for Handling XML Data in the Database | |
Using XMLType for Handling XML Data in the Database Being an object type XMLType can not only be used to store XML data in the database but also to operate on that data via its built in methods Regardless of the storage model you choose XMLType provides a set of XML specific methods to operate on XM
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Using Oracle Database for Storing, Modifying, and Retrieving XML Data | |
Using Oracle Database for Storing Modifying and Retrieving XML Data With Oracle XML DB you have various XML storage and XML processing options allowing you to achieve the required level of performance and scalability One of the most interesting things about Oracle XML DB is that it allows you to per
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Performing XSLT Transformations inside the Database | |
Performing XSLT Transformations inside the Database Now that you have the employees XSL stylesheet stored in the database and the xmlusr schema is permitted to access the hr employees table you can create a script that will instruct the database to build an HTML page based on the data stored in hr e
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Moving All the XML Processing into the Database | |
Moving All the XML Processing into the Database In the preceding example the database server performs only a part of the XML processing while the rest is still performed by the PHP engine Specifically the database server generates an employees XML document based on the records from the hr employees
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Performing XML Processing inside the Database | |
Performing XML Processing inside the Database When building XML enabled applications on top of Oracle there are many advantages to performing the XML processing inside the database when compared to performing it on the client The key advantages to perform XML processing inside the database are as fo
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jQuery - The Power of Plug-ins | |
Learning jQuery The Power of Plug ins The alternateRowColors function that we wrote is a perfect candidate to become a jQuery plug in In fact any operation that we wish to apply to a set of DOM elements can easily be expressed as a plug in In this case we only need to modify our existing function a
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What is Operational Database | |
Operational Database is the database-of-record, consisting of system-specific reference data and event data belonging to a transaction-update system. It may also contain system control data such as indicators, flags, and counters. The operational database is the source of data for the data warehouse
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Evolution of database systems | |
The Evolution of Database systems
File Management System
Hierarchical database System
Network Database System
Relational Database System
File Management System: The file management system also called as FMS in short is one in which all data is stored on a singl
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Database Concurrency and Reliability | |
Database Concurrency and Reliability Overview
Concurrency and reliability have long been “hot topics” of discussion among developers and users of distributed systems. The fundamental problem can be seen in a simple example, as follows.
Suppose two users are working on the same
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Database Interaction | |
Database Interaction
Efficient interaction, efficient storage, and efficient processing are the three key properties of a successful database platform. In this article, we explore the first: efficient interaction.
Interaction Category 1: Command Line Clients
Many database platforms are shipped with
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