大约有 47,000 项符合查询结果(耗时:0.0394秒) [XML]

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Can you have if-then-else logic in SQL? [duplicate]

I need to do select data from a table based on some kind of priority like so: 7 Answers ...
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Generate random int value from 3 to 6

... This generates a random number between 0-9 SELECT ABS(CHECKSUM(NEWID()) % 10) 1 through 6 SELECT ABS(CHECKSUM(NEWID()) % 6) + 1 3 through 6 SELECT ABS(CHECKSUM(NEWID()) % 4) + 3 Dynamic (Based on Eilert Hjelmeseths Comment) SELECT ABS(CHECKSUM(NEWID()) % (@ma...
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Get selected text from a drop-down list (select box) using jQuery

How can I get the selected text (not the selected value) from a drop-down list in jQuery? 34 Answers ...
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How to remove the default arrow icon from a dropdown list (select element)?

I want to remove the dropdown arrow from a HTML <select> element. For example: 12 Answers ...
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How to do a FULL OUTER JOIN in MySQL?

...MPLE transcribed from this SO question you have: with two tables t1, t2: SELECT * FROM t1 LEFT JOIN t2 ON t1.id = t2.id UNION SELECT * FROM t1 RIGHT JOIN t2 ON t1.id = t2.id The query above works for special cases where a FULL OUTER JOIN operation would not produce any duplicate rows. The quer...
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Remove outline from select box in FF

Is it possible to remove the dotted line surrounding a selected item in a select element? 12 Answers ...
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Select values from XML field in SQL Server 2008

... Given that the XML field is named 'xmlField'... SELECT [xmlField].value('(/person//firstName/node())[1]', 'nvarchar(max)') as FirstName, [xmlField].value('(/person//lastName/node())[1]', 'nvarchar(max)') as LastName FROM [myTable] ...
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Insertion Sort vs. Selection Sort

I am trying to understand the differences between Insertion Sort and Selection Sort. 20 Answers ...
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How to drop all tables in a SQL Server database?

...VARCHAR(500) DECLARE @Cursor CURSOR SET @Cursor = CURSOR FAST_FORWARD FOR SELECT DISTINCT sql = 'ALTER TABLE [' + tc2.TABLE_SCHEMA + '].[' + tc2.TABLE_NAME + '] DROP [' + rc1.CONSTRAINT_NAME + '];' FROM INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS rc1 LEFT JOIN INFORMATION_SCHEMA.TABLE_CONSTRAINTS t...
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How to select from subquery using Laravel Query Builder?

... Note that if you have a complex query as a belongsToMany as subselect you have to add getQuery() twice => $sub->getQuery()->getQuery() – Jordi Puigdellívol Aug 28 '15 at 14:23 ...