大约有 48,000 项符合查询结果(耗时:0.0295秒) [XML]

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How to do a case sensitive search in WHERE clause (I'm using SQL Server)?

...the Collation. By default it is case insensitive. Excerpt from the link: SELECT 1 FROM dbo.Customers WHERE CustID = @CustID COLLATE SQL_Latin1_General_CP1_CS_AS AND CustPassword = @CustPassword COLLATE SQL_Latin1_General_CP1_CS_AS Or, change the columns to be case sensitive. ...
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How do I find duplicates across multiple columns?

... Duplicated id for pairs name and city: select s.id, t.* from [stuff] s join ( select name, city, count(*) as qty from [stuff] group by name, city having count(*) > 1 ) t on s.name = t.name and s.city = t.city ...
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How to list active / open connections in Oracle?

... Error starting at line 1 in command: select * from FROM v$session Error at Command Line:1 Column:14 Error report: SQL Error: ORA-00903: invalid table name 00903. 00000 - "invalid table name" *Cause: *Action: – pistacchio ...
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Setting the selected value on a Django forms.ChoiceField

...t hand, but this Q/A comes up for searches related to trying to assign the selected value to a ChoiceField. If you have already called super().__init__ in your Form class, you should update the form.initial dictionary, not the field.initial property. If you study form.initial (e.g. print self.init...
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What's the Linq to SQL equivalent to TOP or LIMIT/OFFSET?

... In VB: from m in MyTable take 10 select m.Foo This assumes that MyTable implements IQueryable. You may have to access that through a DataContext or some other provider. It also assumes that Foo is a column in MyTable that gets mapped to a property name. ...
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Parameterize an SQL IN clause

... Here's a quick-and-dirty technique I have used: SELECT * FROM Tags WHERE '|ruby|rails|scruffy|rubyonrails|' LIKE '%|' + Name + '|%' So here's the C# code: string[] tags = new string[] { "ruby", "rails", "scruffy", "rubyonrails" }; const string cmdText = "select * from t...
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How do I compare two files using Eclipse? Is there any option provided by Eclipse?

... To compare two files in Eclipse, first select them in the Project Explorer / Package Explorer / Navigator with control-click. Now right-click on one of the files, and the following context menu will appear. Select Compare With / Each Other. ...
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How to insert a line break in a SQL Server VARCHAR/NVARCHAR string

...NVARCHAR(100) SET @text = 'This is line 1.' + CHAR(13) + 'This is line 2.' SELECT @text This prints out the following: This is line 1. This is line 2. share | improve this answer |...
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TSQL Pivot without aggregate function

... yes, but why !!?? Select CustomerID, Min(Case DBColumnName When 'FirstName' Then Data End) FirstName, Min(Case DBColumnName When 'MiddleName' Then Data End) MiddleName, Min(Case DBColumnName When 'LastName' Then Data End) LastNa...
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PHP PDO returning single row

... $dbh = new PDO(" --- connection string --- "); $stmt = $dbh->prepare("SELECT name FROM mytable WHERE id=4 LIMIT 1"); $stmt->execute(); $row = $stmt->fetch(); share | improve this answe...