大约有 531 项符合查询结果(耗时:0.0096秒) [XML]

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SQL how to make null values come last when sorting ascending

...d to compare the column in question to another date column. I use this for union seniority list. If employee has a Qualified date (which is nullable) , that date bubbles record to the top, otherwise use HireDate. Using ORDER BY ISNULL(QualifiedDate,'1-1-2099') , HireDate ,LastName, etc makes the Qu...
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How do I get the size of a java.sql.ResultSet?

...CHAR " +from_where +"UNION ALL "//the "ALL" part prevents internal re-sorting to prevent duplicates (and we do not want that) +"select cast(null as int)as RECORDCOUNT," + "MYBOOL,MYINT,M...
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Why would someone use WHERE 1=1 AND in a SQL clause?

...box. The choices in the drop-down are given by: select distinct a from t union all select '*' from sysibm.sysdummy1 so that you get all possible values plus "*". If the user selects "*" from the drop down box (meaning all values of a should be selected), the query has to be modified (by Javascr...
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Editing dictionary values in a foreach loop

...decimal)c.Value / (decimal)totalCount >= .05M); var newColStates = over.Union(new Dictionary<string, int>() { { "Other", under.Sum(c => c.Value) } }); foreach (var item in newColStates) { Console.WriteLine("{0}:{1}", item.Key, item.Value); } ...
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Cannot resolve the collation conflict between “SQL_Latin1_General_CP1_CI_AS” and “Latin1_General_CI_

... If the same two fields are used together in other places (comparisons, unions, coalesce, etc...) make sure that each of those also have the collation specified. – Zarepheth Feb 17 '14 at 21:26 ...
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How to print register values in GDB?

...p $eax # $2 = 1 This syntax can also be used to select between different union members e.g. for ARM floating point registers that can be either floating point or integers: p $s0.f p $s0.u From the docs: Any name preceded by ‘$’ can be used for a convenience variable, unless it is one of...
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How to return a value from a Form in C#?

...nly a date is needed //but normally I include optional data (as if a C UNION type) //the form that responds to the event decides if //the data is for it. public DateTime date { get; set; } //CI_STOCKIN public StockClass inStock { get; set; } } Then use the delegate within ...
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Matplotlib - Move X-Axis label downwards, but not X-Axis Ticks

...self._get_tick_bboxes(ticks_to_draw, renderer) bbox = mtransforms.Bbox.union(bboxes) bottom = bbox.y0 x, y = self.label.get_position() self.label.set_position((x, bottom - self.labelpad * self.figure.dpi / 72.0)) You can set the label position independently of the ticks by using: ...
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Useful GCC flags for C

...rning. -Waggregate-return: warn if any functions that return structures or unions are defined or called. -Wcast-qual: warn whenever a pointer is cast to remove a type qualifier from the target type*. -Wswitch-default: warn whenever a switch statement does not have a default case*. -Wswitch-enum: war...
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How to create a SQL Server function to “join” multiple rows from a subquery into a single delimited

...urn intermediate concatenations that will be -- filtered out later on UNION ALL SELECT c.VehicleID, (c.Cities + ', ' + l.City) Cities, l.Rank FROM Concatenations c -- this is a recursion! INNER JOIN RankedLocations l ON l.VehicleID = c.VehicleID AND l.R...