大约有 47,000 项符合查询结果(耗时:0.0448秒) [XML]

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Oracle query to fetch column names

...r case, I'd imagine the query would look something like: String sqlStr= " SELECT column_name FROM all_tab_cols WHERE table_name = 'USERS' AND owner = '" +_db+ "' AND column_name NOT IN ( 'PASSWORD', 'VERSION', 'ID' )" Note that with this approach, you risk SQL injection. EDIT: Uppercase...
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Convert List into Comma-Separated String

...s before you Aggragate to string. So you can do something like this: list.Select(x => string.Format("{0}:{1}", x.Key, x.Value)).Aggregate((a, x) => a+ ", " + x); – bets Jul 20 '17 at 8:14 ...
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MySQL/Amazon RDS error: “you do not have SUPER privileges…”

...e “Parameter Groups” tab. Create a new Parameter Group. On the dialog, select the MySQL family compatible to your MySQL database version, give it a name and confirm. Select the just created Parameter Group and issue “Edit Parameters”. Look for the parameter ‘log_bin_trust_function_creators...
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Webstorm: “Cannot Resolve Directory”

...t directory as a Resource. To do this, go to Settings > Directories and select your asset root folder from the right-hand panel. Then mark it as Resource Root by clicking the button above the file browser. From the Jetbrains documentation, a Resource Root enables WebStorm to complete relative pa...
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Distinct not working with LINQ to Objects

...ey were hit during the foreach loop. This is because the var temp = books.SelectMany(book => book.Authors).Distinct(); returns an IEnumerable, meaning that the request is not executed right away, it is only executed when the data is used. If you would like an example of this firing right away, ...
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What columns generally make good indexes?

...earching the results speedily from tables. So it is most important step to select which columns to be indexed. There are two major places where we can consider indexing: columns referenced in the WHERE clause and columns used in JOIN clauses. In short, such columns should be indexed against which yo...
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Sourcetree - undo unpushed commits

...click on the commit you like to reset to (not the one you like to delete!) Select "Reset master to this commit" Select "Soft" reset. A soft reset will keep your local changes. Source: https://answers.atlassian.com/questions/153791/how-should-i-remove-push-commit-from-sourcetree Edit About git r...
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Sql Server 'Saving changes is not permitted' error ► Prevent saving changes that require table re-cr

...ck Options, expand Designers, and then click Table and Database Designers. Select or clear the Prevent saving changes that require the table to be re-created check box. See Also Colt Kwong Blog Entry: Saving changes is not permitted in SQL 2008 Management Studio ...
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SQL Server equivalent to Oracle's CREATE OR REPLACE VIEW

...y create or replace views or stored procedures as follows. IF NOT EXISTS (SELECT * FROM sys.views WHERE object_id = OBJECT_ID(N'[dbo].[vw_myView]')) EXEC sp_executesql N'CREATE VIEW [dbo].[vw_myView] AS SELECT ''This is a code stub which will be replaced by an Alter Statement'' as [code_stub]' ...
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Visual Studio 2013 Missing Convert To Web Application

... It's been moved to the 'Project' menu towards the bottom after selecting the project or folder: Sources: http://connect.microsoft.com/VisualStudio/feedback/details/806246/visual-studio-2013-web-forms-conver-to-web-applications ...