大约有 47,000 项符合查询结果(耗时:0.0736秒) [XML]

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How to convert int to char with leading zeros?

... Try this: select right('00000' + cast(Your_Field as varchar(5)), 5) It will get the result in 5 digits, ex: 00001,...., 01234 share | ...
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Select TreeView Node on right click before displaying ContextMenu

I would like to select a WPF TreeView Node on right click, right before the ContextMenu displayed. 11 Answers ...
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What is the difference between the states selected, checked and activated in Android?

...below added): ... For example, in a list view with single or multiple selection enabled, the views in the current selection set are activated. (Um, yeah, we are deeply sorry about the terminology here.) The activated state is propagated down to children of the view it is set on. So here...
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How to find largest objects in a SQL Server database?

...quite a bit understanding and determining the size of indices and tables: SELECT t.name AS TableName, i.name as indexName, sum(p.rows) as RowCounts, sum(a.total_pages) as TotalPages, sum(a.used_pages) as UsedPages, sum(a.data_pages) as DataPages, (sum(a.total_pages) *...
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Tracking CPU and Memory usage per process

...tility to save the performance data for your inspection later. To do this, select "Performance Logs and Alerts" in the left-hand panel. (It's right under the System Monitor console which provides us with the above mentioned counters. If it is not there, click "File" > "Add/remove snap-in", click ...
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How do you list the primary key of a SQL Server table?

... SELECT Col.Column_Name from INFORMATION_SCHEMA.TABLE_CONSTRAINTS Tab, INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE Col WHERE Col.Constraint_Name = Tab.Constraint_Name AND Col.Table_Name = Tab.Table_Name ...
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LINQ query on a DataTable

...w in myDataTable.AsEnumerable() where myRow.Field<int>("RowNo") == 1 select myRow; And as @Keith says, you'll need to add a reference to System.Data.DataSetExtensions AsEnumerable() returns IEnumerable<DataRow>. If you need to convert IEnumerable<DataRow> to a DataTable, use the...
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LINQ: When to use SingleOrDefault vs. FirstOrDefault() with filtering criteria

... When I ran a SingleOrDefault through LinqPad and VS, I never got SELECT TOP 2, with FirstOrDefault I was able to get SELECT TOP 1, but as far as I can tell you do not get SELECT TOP 2. – Jamie R Rytlewski Dec 22 '11 at 15:04 ...
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How do I select an element with its name attribute in jQuery? [duplicate]

... $('[name="ElementNameHere"]').doStuff(); jQuery supports CSS3 style selectors, plus some more. See more jQuery - Selectors jQuery - [attribute=""] selector share | improve this answer ...
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How to COUNT rows within EntityFramework without loading contents?

... where o.ID == '1' from t in o.MyTable select t).Count(); Method syntax: var count = context.MyContainer .Where(o => o.ID == '1') .SelectMany(o => o.MyTable) .Count() Both generate the same SQL query. ...