No. Although some specialized commands are used to manage and configure the cluster itself, only standard (My)SQL queries and commands are required for the following operations: Some specialized configuration parameters and files are required to set up a MySQL Cluster - see Section 15.4.4, "Configuration File", for information about these. A few simple commands are used in the MySQL Cluster management client for tasks such as starting and stopping cluster nodes. See Section 15.7.

Yes. The Query Cache operates on the server level, caching complete result sets matched with the original query string. If an exactly identical query is made (which often happens, particularly in web applications), no parsing or execution is necessary; the result is sent directly from the cache. Various tuning options are available. See Section 5.14, "The MySQL Query Cache". See similar questions...

MySQL (http://www.mysql.com/) is an open-source robust SQL database engine. X-Cart uses it to store product information. Most of web hostings support MySQL. You can contact your ISP / web hosting in order to make sure that they have support for MySQL databases. See similar questions...

To retrieve only a few rows, if you know at the number of rows needed at the time of the SELECT use LIMIT . If an index matches the ORDER BY it is possible the entire query does not have to be executed. If you don't know the number of rows at SELECT time, use a cursor and FETCH. Use the \dt command to see tables in psql. For a complete list of commands inside psql you can use \?. Alternatively you can read the source code for psql in file pgsql/src/bin/psql/describe. See similar questions...

The entire query may have to be evaluated, even if you only want the first few rows. Consider a query that has an ORDER BY. If there is an index that matches the ORDER BY, PostgreSQL may be able to evaluate only the first few records requested, or the entire query may have to be evaluated until the desired rows have been generated. See similar questions...

A person's overall performance rating is one very important factor used in determining merit increases but it is not the only factor. See similar questions...

MySQL replication is most beneficial for a system that processes frequent reads and infrequent writes. In theory, by using a single-master/multiple-slave setup, you can scale the system by adding more slaves until you either run out of network bandwidth, or your update load grows to the point that the master cannot handle it. See similar questions...

You can find out which strategy the SQL Optimizer has chosen for executing an SQL statement by using the EXPLAIN statement. The result of an EXPLAIN statement is a table. The STRATEGY column of this table shows you the strategy that the SQL Optimizer selected for this SQL statement, the PAGECOUNT column shows you the costs determined for the chosen strategy, for example, whether the system used key columns or indexes. See similar questions...

Definitely. Because hot air travels to cold air very quickly, a higher exhaust gas velocity and a smoother flow is achieved, and the cylinder is left cleaner for the next intake stroke, increasing engine performance. See similar questions...

We recommend you using Windows95/98 or Windows ME to run remote control server. You will get a lower performance when using Windows2000/NT, because Windows2000/NT is base on Client/Server structure. At the same time, Lower screen resolutions can also improve performance. Unless you are using a very fast network connection, we do not recommend using high resolutions. See similar questions...

No. The resonators present on the GT do not restrict exhaust flow. They just reduce the volume of the exhaust. They can be replaced with a straight pipe without any adverse effects to increase the exhaust volume if desired. See similar questions...

Normally, most motherboards set the Cache Line Size of the motherboard primary PCI bus (i.e. system North Bridge) to 8, with some of the newer ones choosing 16. At boot time, the system BIOS copies this value to our bridge CLS register. The number is small where little bursting is expected; but smaller burst lengths decrease available PCI bandwidth. The tradeoff is that small bursts have smaller latency, that is, less impact on other devices waiting to use the PCI bus. See similar questions...

The amount of performance improvement will depend on the application and its ability to scale. Several of today's hottest games see a full 2X increase in performance. In general, applications running at higher resolutions with higher image quality settings will benefit most. See similar questions...

If you are hosting an MP game, you can turn off the "Allow External View" setting. If you allow this each time a player uses an external view (pressing the 8 key), then that increases the network traffic. For a small TE or just a few in a campaign, there should not be a problem, but if you are hosting a lot of players then it could create warping. See similar questions...

Select distinct <field> from <table>".This SELECT statement is used to filter out duplicate results from a query's output. But sometimes the requirement is to use a Stored Procedure which returns the entire data and dsiplay the manipulated distinct data in web server control. See similar questions...