大约有 47,000 项符合查询结果(耗时:0.0508秒) [XML]

https://stackoverflow.com/ques... 

How to increase storage for Android Emulator? (INSTALL_FAILED_INSUFFICIENT_STORAGE)

...onfigurations". You can find that in the drop-down under the "debug" icon. Select "target", and select a preferred emulator target to launch. Then under "additional emulator command line options," add this: -partition-size 1024 Then CLOSE the emulator (and remove any devices), and click the debug ...
https://stackoverflow.com/ques... 

ADB not recognising Nexus 4 under Windows 7

...nstall the generic 'MTP device driver' Right clicked on the new device and selected 'Update Driver' Selected 'Have Disk' and pointed it to [android-sdk-dir]\extras\google Watched an 'ADB' driver install. Opened Eclipse to successfully run on my Nexus 4. Good luck! ...
https://stackoverflow.com/ques... 

How do I convert an interval into a number of hours with postgres?

... Probably the easiest way is: SELECT EXTRACT(epoch FROM my_interval)/3600 share | improve this answer | follow | ...
https://stackoverflow.com/ques... 

How to check if a column exists in a SQL Server table?

... SQL Server 2005 onwards: IF EXISTS(SELECT 1 FROM sys.columns WHERE Name = N'columnName' AND Object_ID = Object_ID(N'schemaName.tableName')) BEGIN -- Column Exists END Martin Smith's version is shorter: IF COL_LENGTH('schemaName.tabl...
https://stackoverflow.com/ques... 

What is the difference between ExecuteScalar, ExecuteReader and ExecuteNonQuery?

... then the result is the first column of the first row. An example might be SELECT @@IDENTITY AS 'Identity'. ExecuteReader is used for any result set with multiple rows/columns (e.g., SELECT col1, col2 from sometable). ExecuteNonQuery is typically used for SQL statements without results (e.g., UPDATE...
https://stackoverflow.com/ques... 

How do I add an existing Solution to GitHub from Visual Studio 2013

... OK this worked for me. Open the solution in Visual Studio 2013 Select File | Add to Source Control Select the Microsoft Git Provider That creates a local GIT repository Surf to GitHub Create a new repository DO NOT SELECT Initialize this repository with a README That creates an em...
https://stackoverflow.com/ques... 

Replacement for “rename” in dplyr

... The next version of dplyr will support an improved version of select that also incorporates renaming: > mtcars2 <- select( mtcars, disp2 = disp ) > head( mtcars2 ) disp2 Mazda RX4 160 Mazda RX4 Wag 160 Datsun 710 108 Hornet 4 Drive 258 H...
https://stackoverflow.com/ques... 

When restoring a backup, how do I disconnect all active connections?

... the steps (via: Tim Leung) Right-click the server in Object Explorer and select 'Activity Monitor'. When this opens, expand the Processes group. Now use the drop-down to filter the results by database name. Kill off the server connections by selecting the right-click 'Kill Process' option. ...
https://stackoverflow.com/ques... 

How do I perform an insert and return inserted identity with Dapper?

...uerySingle<int>( @" INSERT INTO [MyTable] ([Stuff]) VALUES (@Stuff); SELECT CAST(SCOPE_IDENTITY() as int)", new { Stuff = mystuff}); Note that on more recent versions of SQL Server you can use the OUTPUT clause: var id = connection.QuerySingle<int>( @" INSERT INTO [MyTable] ([Stuff]) ...
https://stackoverflow.com/ques... 

SQLite select where empty?

In SQLite, how can I select records where some_column is empty? Empty counts as both NULL and "". 4 Answers ...