大约有 47,000 项符合查询结果(耗时:0.0426秒) [XML]

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SQL Server: Query fast, but slow from procedure

...: CREATE PROCEDURE GetOrderForCustomers(@CustID varchar(20)) AS BEGIN SELECT * FROM orders WHERE customerid = @CustID END Fast way: CREATE PROCEDURE GetOrderForCustomersWithoutPS(@CustID varchar(20)) AS BEGIN DECLARE @LocCustID varchar(20) SET @LocCustID = @CustID SELEC...
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Compare two files in Visual Studio

... the desktop. That's all! Usage: Open the Windows explorer via Win + E Select two files to compare in the explorer Drag and drop them as shown in the animation below: After a few seconds (depending on the launch time of Visual Studio), the results will be shown in Visual Studio: Note: It d...
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How to select only the records with the highest date in LINQ

...is: var q = from n in table group n by n.AccountId into g select new {AccountId = g.Key, Date = g.Max(t=>t.Date)}; If you want the whole record: var q = from n in table group n by n.AccountId into g select g.OrderByDescending(t=>t.Date).FirstOrDefault(); ...
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Create PostgreSQL ROLE (user) if it doesn't exist

...r fashion to what you had in mind: DO $do$ BEGIN IF NOT EXISTS ( SELECT FROM pg_catalog.pg_roles -- SELECT list can be empty for this WHERE rolname = 'my_user') THEN CREATE ROLE my_user LOGIN PASSWORD 'my_password'; END IF; END $do$; (Building on @a_horse_with_no_name's...
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How to select rows from a DataFrame based on column values?

How to select rows from a DataFrame based on values in some column in Pandas? 10 Answers ...
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How to get all options of a select using jQuery?

How can I get all the options of a select through jQuery by passing on its ID? 17 Answers ...
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C#: How to convert a list of objects to a list of a single property of that object?

... List<string> firstNames = people.Select(person => person.FirstName).ToList(); And with sorting List<string> orderedNames = people.Select(person => person.FirstName).OrderBy(name => name).ToList(); ...
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Maximum Year in Expiry Date of Credit Card

...orget that in most browsers you can still key in the number and it'll auto select. – Kevin Wiskia Mar 22 '11 at 19:44 1 ...
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Rebuild or regenerate 'ic_launcher.png' from images in Android Studio

...s a dialog where the app\src\main\res Directory Structure is automatically selected (the right choice) Clicking on the OK button, AS opens the Asset Studio dialog where you can find all the tools and options we had on the past Eclipse ADT This can be done absolutely in any moments after creation o...
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How to build jars from IntelliJ properly?

...from IntelliJ: Go to project structure: Create a new artifact: Select the main class, and be sure to change the manifest folder: You have to change manifest directory: <project folder>\src\main\java replace "java" with "resources" <project folder>\src\main\resources ...