大约有 47,000 项符合查询结果(耗时:0.0350秒) [XML]

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How to delete all rows from all tables in a SQL Server database?

...t: DECLARE @Nombre NVARCHAR(MAX); DECLARE curso CURSOR FAST_FORWARD FOR Select Object_name(object_id) AS Nombre from sys.objects where type = 'U' OPEN curso FETCH NEXT FROM curso INTO @Nombre WHILE (@@FETCH_STATUS <> -1) BEGIN IF (@@FETCH_STATUS <> -2) BEGIN DECLARE @statement NVARC...
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Cannot create or edit Android Virtual Devices (AVD) from Eclipse, ADT 22.6

...lone button worked and I was able to successfully edit the clone. Steps: Select a Device by Google Click the "Clone..." button A window will pop up, click "Clone device" Select the newly cloned Device, it should say "... by User" Click the "Edit" button on the side There you have it...
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SQL Server IN vs. EXISTS Performance

...execution operation, to get their results. An example: Query 1 ( plan ) select * from dt where dt.customer in (select c.code from customer c where c.active=0) Query 2 ( plan ) select * from dt where exists (select 1 from customer c where c.code=dt.customer and c.active=0) ...
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error, string or binary data would be truncated when trying to insert

...ay cause it. In my case i was creating the table with a field like this: Select '' as Period, * From Transactions Into #NewTable Therefore the field "Period" had a length of Zero and causing the Insert operations to fail. I changed it to "XXXXXX" that is the length of the incoming data and it n...
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IIS Express Immediately shutting-down running site after stopping web application

...debugging is stopped. Right click your project > click Properties > select the 'Web' tab on the left > uncheck the Enable Edit and Continue checkbox. share | improve this answer |...
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Nearest neighbors in high-dimensional data?

... First, the number of features (columns) in a data set is not a factor in selecting a distance metric for use in kNN. There are quite a few published studies directed to precisely this question, and the usual bases for comparison are: the underlying statistical distribution of your data; the rel...
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How to get last inserted id?

... INSERT INTO aspnet_GameProfiles(UserId,GameId) VALUES(@UserId, @GameId); SELECT SCOPE_IDENTITY() And then Int32 newId = (Int32) myCommand.ExecuteScalar(); share | improve this answer ...
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SQL Server Text type vs. varchar data type [closed]

...ts in your database If you do not search on the value of the column If you select this column rarely and do not join on it. VARCHAR is good: If you store little strings If you search on the string value If you always select it or use it in joins. By selecting here I mean issuing any queries that ...
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How to move the cursor word by word in the OS X Terminal

...e sequences for you: Open Terminal preferences (cmd+,); At Settings tab, select Keyboard and double-click ⌥ ← if it's there, or add it if it's not. Set the modifier as desired, and type the shortcut key in the box: esc+B, generating the text \033b (you can't type this text manually). Repeat fo...
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Create an array or List of all dates between two dates [duplicate]

... LINQ: Enumerable.Range(0, 1 + end.Subtract(start).Days) .Select(offset => start.AddDays(offset)) .ToArray(); For loop: var dates = new List<DateTime>(); for (var dt = start; dt <= end; dt = dt.AddDays(1)) { dates.Add(dt); } EDIT: As for padding value...