difference between rack server and tower server

such as the User's avatar some people say is saved on the server I do not know what the server is what ah in my mind there is no concept I know that the database is to keep things like the database can not save the Picture. what do you want the database to do if the server is able to save things?

The Intel 5500 series Xeon CPU2009 year March launches, everybody in for this series CPU chooses the motherboard to be possible to see the memory support option generally is 2 kinds, one is supports 48G, one kind is 24G, the same server board how can be two kinds of different capacity memory support? The secret is in memory type one is Rdimm, one is Udimm. Then what is Rdimm? What is Udimm? Rdimm:registered DIMM (registered Dual in-line Memory modul

First, let's take a look at SQL server. Previously, we used the foreground to select a start time and an end time (in the smallest unit of day), and then used it as a condition for query, if we use "between starttime and endtime" as the condition, we will automatically convert "" to "00:00:00 ", therefore, the following query condition is "between '2014-06-16 'and '2014-06-17'". Only data on the 16th day can be obtained. Data on the 17th day cannot be

1. Get System Current TimeSQL Server 2005: Select GETDATE () Oracle: Select Sysdate from dual 2. Get Year dateSQL Server 2005: Copy Code code as follows: Select year (GETDATE ())--2011 Select Month (getdate ())--3 Select Day (getdate ())--23 Oracle: Copy Code code as follows: Select To_char (sysdate, ' yyyy ') from dual--2011 Select To_char (sysdate, ' mm ') from dual--03 Sele

specified times (including the second date but not the first date. When month is used as the date part, datediff returns the number of the first day of the month between two dates (including the second date but not the first date. When week is used as the date part, datediff returns the number of Sundays between two dates (including the second but not the first. Overflow value for a smaller unit of time: Milliseconds 24 days Seconds 68 years Minutes 4083 Others has no overflow res

From: http://www.cnblogs.com/chillsrc/archive/2008/04/15/1154186.html I. Environment and test requirements 1. Test Environment ① Hardware: CPU: 2 GB, memory: 2 GB ② Database: SQL 2005 The result varies depending on the machine configuration. 2. Performance Test Description ① Query after the database server is restarted, that is, the result of the first query.② Compare the performance of database queries. Ii. Test Status 1. Use a temp

Default in SQL Server is not sensitive to case, for example, Username= ' Jesse ' and Username= ' Jesse ' result are the same. When validating a password, you may need to be sensitive to string capitalization, and you need to do some processing to introduce two methods: Method Ⅰ: Convert to binary and then compare, because the case of the ASC code is different. For example: SELECT * From T_user Where CAST (field as varbinary) = cast (' Admin ' as v

SQL Server recommends assigning a variable using SET instead of SELECT.The SET method is recommended when an expression returns a value and assigns a variable.The following table lists the differences between SET and SELECT. Please pay special attention to the red section. Set Select Assign values to multiple variables at the same time does not support Support When an expression returns multiple

What is the difference between the server CPU and the normal CPU? Below we find a professional literature, quickly to increase knowledge. Overall, there are six main differences between the server CPU and the common computer CPU, so let's look at it together. One, the instruction set is different Home or employment computer equipped with the ordinary CPU, usua

What is the difference between a SQL Server database and a MySQL database? A lot of friends in the IT industry. For SQL Server database and MySQL database often confuse, think these two kinds of database is the same, otherwise, today we analyze the difference between these two kinds of database:What is the