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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 | ...
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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]) ...
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Execute Insert command and return inserted Id in Sql

...md=new SqlCommand("INSERT INTO Mem_Basic(Mem_Na,Mem_Occ) VALUES(@na,@occ);SELECT SCOPE_IDENTITY();",con)) { cmd.Parameters.AddWithValue("@na", Mem_NA); cmd.Parameters.AddWithValue("@occ", Mem_Occ); con.Open(); int modified = Convert.ToInt32(cmd.ExecuteScalar());...
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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...
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How to ignore SVN folders in WinMerge?

...ersion housekeeping directories d: \\.svn$ d: \\._svn$ Save it, then when selecting items to merge, select the filter you defined from the Select Files or Folders dialog box. Bonus points: It will save this and use it as a default for future merges. ...
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linq query to return distinct field values from a list of objects

... objList.Select(o=>o.typeId).Distinct() share | improve this answer | follow | ...
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Get cursor position (in characters) within a text Input field

... Easier update: Use field.selectionStart example in this answer. Thanks to @commonSenseCode for pointing this out. Old answer: Found this solution. Not jquery based but there is no problem to integrate it to jquery: /* ** Returns the caret (curs...
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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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What's the reason for “Error:Cannot determine Java VM executable in selected JDK”?

...ettings from project context menu (or default hit F4), then from left tab select Project and point correct Project SDK on dropdown. share | improve this answer | follow ...
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App Inventor 2 SQLite 拓展:超流行兼容主流SQL语法的迷你本地数据库引擎...

...原始调用中指定的标签以及新行或更新行的行 ID。 AfterSelect(tag,rowCount,rows) 此事件在异步 Select 调用后触发。 提供原始调用中指定的标签、返回的行数以及结果行数据。 AfterUpdate(tag,rowCount) 此事件在异步 Update 调用后触发。...