大约有 41,000 项符合查询结果(耗时:0.0197秒) [XML]

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How to drop SQL default constraint without knowing its name?

...MySchema' set @table_name = N'Department' set @col_name = N'ModifiedDate' select @Command = 'ALTER TABLE ' + @schema_name + '.[' + @table_name + '] DROP CONSTRAINT ' + d.name from sys.tables t join sys.default_constraints d on d.parent_object_id = t.object_id join sys.columns c on c.object_id ...
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How do you convert a byte array to a hexadecimal string, and vice versa?

... } return result; } static uint[] _Lookup32 = Enumerable.Range(0, 255).Select(i => { string s = i.ToString("X2"); return ((uint)s[0]) + ((uint)s[1] << 16); }).ToArray(); static string ByteArrayToHexViaLookupPerByte(byte[] bytes) { var result = new char[bytes.Length * 2]; ...
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When should I use malloc in C and when don't I?

...y, but of course you don't know the file's size in advance, since the user selects the file on the spot, at runtime. So basically you need malloc when you don't know the size of the data you're working with in advance. At least that's one of the main reasons for using malloc. In your example with a ...
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Find a string by searching all tables in SQL Server Management Studio 2008

...T NULL BEGIN SET @ColumnName = '' SET @TableName = ( SELECT MIN(QUOTENAME(TABLE_SCHEMA) + '.' + QUOTENAME(TABLE_NAME)) FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_TYPE = 'BASE TABLE' AND QUOTENAME(TABLE_SCHEMA) + '.' + QUOTENAME(TABLE_N...
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How to strip all non-alphabetic characters from string in SQL Server?

...ex(@KeepValues, @Temp), 1, '') Return @Temp End Call it like this: Select dbo.RemoveNonAlphaCharacters('abc1234def5678ghi90jkl') Once you understand the code, you should see that it is relatively simple to change it to remove other characters, too. You could even make this dynamic enough ...
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How do I set the size of Emacs' window?

... got the following in my .emacs: (if (window-system) (set-frame-height (selected-frame) 60)) You might also look at the functions set-frame-size, set-frame-position, and set-frame-width. Use C-h f (aka M-x describe-function) to bring up detailed documentation. I'm not sure if there's a way to ...
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SQL select only rows with max value on a column [duplicate]

...ce... All you need is a GROUP BY clause with the MAX aggregate function: SELECT id, MAX(rev) FROM YourTable GROUP BY id It's never that simple, is it? I just noticed you need the content column as well. This is a very common question in SQL: find the whole data for the row with some max value ...
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How do I read text from the (windows) clipboard from python?

...r: from Tkinter import Tk [\nl] r = Tk() [\nl] result = r.selection_get(selection = "CLIPBOARD") [\nl] r.destroy() – mgkrebbs Jan 8 '14 at 0:42 ...
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Initializing a static std::map in C++

... This is a fantastic answer. It's a shame the OP never selected one. You deserve mega props. – Thomas Thorogood Sep 26 '12 at 18:26 ...
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How to import CSV file data into a PostgreSQL table?

...iter '','' quote ''"'' csv ', csv_path); iter := 1; col_first := (select col_1 from temp_table limit 1); -- update the column names based on the first row which has the column names for col in execute format('select unnest(string_to_array(trim(temp_table::text, ''()''), '','')) fro...