大约有 3,551 项符合查询结果(耗时:0.0324秒) [XML]

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Order by multiple columns with Doctrine

...or an example ->orderBy('a.fist_name ASC, a.last_name ASC') will output SQL something like this 'ORDER BY first_name ASC, last_name ASC ASC'. So this is SQL syntax error. Simply because default of the orderBy or addOrderBy is 'ASC'. To add multiple order by's you need to use 'add' function. And...
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Python glob multiple filetypes

...tern in patterns) Then: for filename in multiple_file_types("*.txt", "*.sql", "*.log"): # do stuff share | improve this answer | follow | ...
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PostgreSQL: Can you create an index in the CREATE TABLE definition?

...em to be any way of specifying an index in the CREATE TABLE syntax. PostgreSQL does however create an index for unique constraints and primary keys by default, as described in this note: PostgreSQL automatically creates an index for each unique constraint and primary key constraint to enforce un...
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How to completely uninstall Visual Studio 2010?

... "name like 'microsoft visual%'" call uninstall /nointeractive Repeat for SQL etc by replacing visual% in above command with sql. share | improve this answer | follow ...
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Why are joins bad when considering scalability?

..., you mention "Materialized/indexed views". Are you talking about regular SQL views, or something else? – slolife Apr 30 '10 at 23:40 ...
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Could not find an implementation of the query pattern

...ying to create a database connection using LINQ. First I add a new LINQ to SQL class, and drag my table called "tblPersoon" into it. ...
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How do I (or can I) SELECT DISTINCT on multiple columns?

... of the currently accepted answer by factor 10 - 15 (in my tests on PostgreSQL 8.4 and 9.1). But this is still far from optimal. Use a NOT EXISTS (anti-)semi-join for even better performance. EXISTS is standard SQL, has been around forever (at least since PostgreSQL 7.2, long before this question w...
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How do we count rows using older versions of Hibernate (~2009)?

... What's the point of using an ORM if we end up coding SQL anyway? – thermz Apr 17 '12 at 15:35 Th...
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nullable object must have a value

...on methods (e.g. Select, Where), the lambda function might be converted to SQL that might not behave identically to your C# code. For instance, C#'s short-circuit evaluated && and || are converted to SQL's eager AND and OR. This can cause problems when you're checking for null in your lambda...
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.gitignore for Visual Studio Projects and Solutions

....build.csdef # Windows Store app package directory AppPackages/ # Others sql/ *.Cache ClientBin/ [Ss]tyle[Cc]op.* ~$* *~ *.dbmdl *.dbproj.schemaview *.pfx *.publishsettings node_modules/ # RIA/Silverlight projects Generated_Code/ # Backup & report files from converting an old project file # ...