how improve typing speed

Improve query speed using SQL Indexes 1. Use indexes reasonablyAn index is an important data structure in a database. Its fundamental goal is to improve query efficiency. Currently, most database products adopt the isam index structure first proposed by IBM.The index should be used properly. The usage principles are as follows:● The optimizer automatical

Unnecessary programs in Windows How to prohibit the operation, the computer after a period of time will appear some unnecessary procedures, will affect the speed of our computer, if you do not need to prohibit these programs to start on it. But how to forbid it? The following three networks tell you the specific steps. Find run on the Start menu, click Run, and a dialog box will come out. Enter "Msconfig" in the running box and return to the car. Af

let the PIP source use the domestic mirror, improve download speed and installation success rate. The PIP installation package is a common occurrence for Python development users. But foreign source download speed is too slow, waste of time. And there are frequent installation errors after downloading. Therefore, the PIP installation source to replace the domes

First, clean the system of garbage to speed up the internet speed 1, delete the temporary files in the browser, open the Control Panel, choose Click "Network and Internet", and then in the network and Internet interface, select Internet Options; 2, in the Open "Internet Properties" interface, find "browsing history", and click the "Delete" button; 3, in the pop-up window, select the items t

Method 1, If you have an empty IDE slot on your computer's motherboard, you can go in. The interface parameter is set to none in the BIOS interface, which can also improve the detection speed of the IDE device. Method 2, First in the Win7 system after the boot press F2 into the BIOS setup interface, and then the hard disk parameters are detected after the Save settings, so you can shorten the hard drive

are not available.20. Try to use table variables instead of temporary tables. If the table variable contains a large amount of data, be aware that the index is very limited (only the primary key index).21. Avoid frequent creation and deletion of temporary tables to reduce the consumption of system table resources.22. Temporary tables are not unusable, and they can be used appropriately to make certain routines more efficient, for example, when you need to repeatedly reference a dataset in a lar

Although the WIN10 boot speed to be significantly faster than the WIN7/8 system, but still a lot of netizens complain that the computer boot speed is slow. Today small series for everyone a quick upgrade WIn10 boot speed method, a trick can be done.1, first click on the Win10 Start menu, and then click enter "Settings",.2. Then click to enter "System" settings.3.

JavaScript at the end of the documentAll scripts are loaded at the end of the page, which allows the browser to render everything before loading JavaScript. The browser blocks the loading of the following content before JavaScript is downloaded. If you can, try to place JavaScript next to the body end tag.9. Use Content distribution Network (contents Delivery NETWORK,CDN)The speed of the site and the user relative to the location of the server has a

Sort index fragments to improve the speed of SQL Server. For details, refer. Sort index fragments to speed up SQL Server. For details, refer. Database Table A has 100,000 records, and the query speed is normal. However, after importing one thousand data records, the problem occurs. When the selected data is between th

Six policies improve MySQL query speed 1. The table design must be optimized, with the least redundant data and less connection queries. If the complex connection and subquery are used in practical applications, the design of the data table must be reconsidered. 2. Try to use char instead of varchar, because the Fixed Length of string is faster to use. as hard disk capacity increases today, it is worthwhi

System upgrade to Win7 has been for some time, the only can not adapt to the Win7 system with the search function, feel very bad, not only slow search speed, and no XP easy to use the right menu "search" command. Usually in order to find some documents, it costs a lot of things to do. In order to improve efficiency, she found the "speed of light search" This gadg

How to handle tens above data to improve query speed: 1. The use of!= or 2. To optimize the query, you should try to avoid full table scan, first consider the where and the order by the columns involved in the establishment of the index. 3. The null value of the field in the WHERE clause should be avoided as far as possible, or it will cause the engine to discard the use of the index for a full table scan,

temporary tables at the end of the stored procedure, TRUNCATE table first, and then drop table, which avoids longer locking of the system tables.25. Avoid using cursors as much as possible, because cursors are inefficient and should be considered for overwriting if the cursor is manipulating more than 10,000 rows of data.26. Before using a cursor-based method or temporal table method, you should first look for a set-based solution to solve the problem, and the set-based approach is generally mo

1, the shutdown charge more quickly First of all, the easiest way to do this is to put the hands on the machine so that you can avoid running programs or using network information to cause unnecessary battery use. Of course, this approach applies to friends who do not need to receive calls or text messages for the time being. 　　 2, "flight mode" under the charge "Flight mode", no network signal, to avoid unnecessary battery consumption, to a certain

Now the notebook is equipped with dual-core CPU, and win 7 for Multi-Core CPU has good support, if not to the Win7 system, dual-core, multi-core CPU can not play its due speed, how should the Win7 settings to improve the dual-core, multi-core CPU speed. 1, click the Start button, in the Start menu of the search program and file input box input msconfig back, ope