recommended to truncate logs on the production database unless you have good reasons and are sure enough, or ......You are not responsible for this.Since this method is not safe, I will introduce a security method below.As we all know, SQL Server will automatically cut off the inactive part of the transaction log when backing up the transaction log. These inactive parts contain completed transactions, so t
the production database unless you have sufficient reason and sufficient certainty, or ...
It's not you who take responsibility.
Now that this method is unsafe, I'll introduce a secure approach.
As you know, SQL Server automatically truncates the inactive portions of the transaction log when it completes a transaction log backup. These inactive parts contain completed transactions and are therefore no long
The date and time data from January 1, January 1-20, 1900 to January 1, June 6 are accurate to minutes.String
Char
A fixed length of non-Unicode characters. The maximum length is 8,000 characters.
Varchar
Variable-length non-Unicode data, which can contain a maximum of 8,000 characters.
Text
Variable-length non-Unicode data. The maximum length is 2 ^ 31-1 (2,147,483,647) characters.Unicode string
Nchar
Unicode data of a fixed length. The maximum length is 4,000 characters.
Nvarchar
A variable-l
(Col1int, Col2Char(5), Col3Char(3), Col4Char(2)) with(data_compression=ROW)--Create a Table assigning Page CompressionCreate Tablegreatforpagecompression (Col1int, Col2Char(5), Col3Char(3), Col4Char(2)) with(data_compression=PAGE)/*Keep in mind ALTER TABLE and alter INDEX can is used to implement compression when those obects already exist.*/3. Availability of databases/*Change various database option and refresh the MGMT*/--2.1 Setup:add A Table and a couple of rows. UseTinyDB;GOCreate Table
After the Windows host name is changed, a 14274 error occurs when you try to update or delete a job created before SQL Server2000. This error does not occur in SQL 7.0, but this error may also occur after the SQL 7.0 virtual
server|sqlserver| Error | data | database
Unable to open the user default database , logon failed, which is one of the problems that SQL Server users are familiar with. When using Enterprise Manager, Query Analyzer, various kinds of tools and application software, as long as the connection to the
Tags: style blog http color os io ar strong forCase Environment:Server environment: Windows Server R2 StandardDatabase version: SQL Server SP1Case Description:When you install SQL Server 2012 on the Windows Server R2 standard vers
client to run the tool.
Click: Program-> Microsoft SQL Server-> Client Network usage tool
From here we can see what protocols are enabled by the client. In general, we also need to enable named Pipes and TCP/IP protocols.
Click the TCP/IP protocol and select Properties to check the client default connection port settings, which must be consistent with the
An error occurred while establishing a connection with the server. When you connect to SQL Server 2005, the default setting does not allow remote connection to SQL Server may cause this failure.
(Provider:
When the Server encounters some minor faults, it always reports that "the connection to SQL Server cannot be opened", as shown below:
An error occurred while establishing a connection with the server. When you connect to SQL
Label: again knock machine room, want to refer to the physical model, the result in the attached database this link appeared some problems, the following summary. 1. Additional database failure, error 5120 For this kind of mistake, I collected on the net, mainly has the following several methods to solve: Method One: Copy the file you want to attach to SQL Server's default data folder, C:\ProgramFiles\
are deleted. To recover both accounts, you can use the following methods:
1, open Enterprise Manager, expand the server group, and then expand the server;
2, expand Security, right-click Login, and click New Login;
3, in the "Name" box, input BUILTIN\Administrators;
4. In the Server Roles tab, select System Administrators;
5, click "OK" exit;
6, use the sa
again.Feature Failure Reason:An error occurred for a dependency of the feature causing the setup process for the feature to fail.Error Details:§error installing Microsoft. NET Framework 3.5Error while enabling Windows FEATURE:NETFX3, error Code: -2146498298, please try enabling Windows Feature:netfx3 fro M Windows man
(Microsoft strongly recommends that system administrators use powerful PowerShell to manage the system), specify the source file path , and then install it:Install-windowsfeature net-framework-core–source G: \sources\sxs2. Use the DISM command at the command prompt to specify the source file path and then install it:dism/online/enable-feature/featurename:netfx3/source:G: \sources\sxs 3. Specify the shared path using the file share containing the SxS
Error re-occurrence: firstly, the sqlserver software is uninstalled on the control panel, everything is normal, and then restart (you must restart it; otherwise, you cannot reinstall it). Execute the sqlserver installation program and everything seems to be normal, after the installation is complete, the system prompts "installation program configuration server failed ".
When the installation program fails
Error re-occurrence: firstly, the sqlserver software is uninstalled on the control panel, everything is normal, and then restart (you must restart it; otherwise, you cannot reinstall it). Execute the sqlserver installation program and everything seems to be normal, after the installation is complete, the system prompts "installation program configuration server failed ".When the installation program fails t
Agent. I've never seen a public document record the SQL Agent error number.[+] Microsoft SQLServerAgent version 10.50.1600.1 (build number x86 Unicode retail): Process ID 5280This is a very useful piece of information. SQL Server Agent version number (that is, version, serv
Label:The use of " ' " (single quotation marks): In SQL Server, two " ' " (single quotation marks) in the case of stitching strings, that is, the concatenation of a " ' " single quote string. The correct wording is given in this column: set @sql = update #temp_monthKQ_Users Set Day + @curruntCount + = + @descTemp + where user_id = + @u
SQL network interface, error: 26-An error occurred while locating the specified server/instance
"/jecas" Application Server Error in Program . ------------------------------------------------------------------------------ An
1433; if the command returns an error message "unable to open the connection", it indicates that the SQL Server service is not started on the server, or the TCP/IP protocol is not enabled on the server, or the server does not lis
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