大约有 43,000 项符合查询结果(耗时:0.0415秒) [XML]

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What is the equivalent of 'describe table' in SQL Server?

... use Select * From INFORMATION_SCHEMA.COLUMNS Where TABLE_NAME = 'TABLENAME' if you don't want to use a stored procedure – Matias Elorriaga Aug 4 '14 at 18:21 ...
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How to use Oracle ORDER BY and ROWNUM correctly?

...n Oracle. If you want a version that works in both servers, you can use: select ril.* from (select ril.*, row_number() over (order by t_stamp desc) as seqnum from raceway_input_labo ril ) ril where seqnum = 1 The outer * will return "1" in the last column. You would need to list the ...
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Strings as Primary Keys in SQL Database [closed]

... Also keep in mind that there's often a very big difference between a CHAR and a VARCHAR when doing index comparisons – Tom H Feb 5 '09 at 20:42 7 ...
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jQuery see if any or no checkboxes are selected

I know how to see if an individual checkbox is selected or not. 8 Answers 8 ...
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How do I set up IntelliJ IDEA for Android applications?

...Program Files\Java\jdk{version} Choose a New platform ( if there's not one selected ) , the SDK platform is the android platform at C:\Program Files\Android\android-sdk-windows. Choose the android version. Now you can write your program. Compiling: Near the Run button you need to select the drop...
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List all tables in postgresql information_schema

... You should be able to just run select * from information_schema.tables to get a listing of every table being managed by Postgres for a particular database. You can also add a where table_schema = 'information_schema' to see just the tables in the informat...
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Linq Syntax - Selecting multiple columns

... .Where(x => x.EMAIL == givenInfo || x.USER_NAME == givenInfo) .Select(x => new { x.EMAIL, x.ID }); AFAIK, the declarative LINQ syntax is converted to a method call chain similar to this when it is compiled. UPDATE If you want the entire object, then you just have to omit the call ...
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SQL Server insert if not exists best practice

...sert Competitors where doesn't already exist": INSERT Competitors (cName) SELECT DISTINCT Name FROM CompResults cr WHERE NOT EXISTS (SELECT * FROM Competitors c WHERE cr.Name = c.cName) share | ...
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'Must Override a Superclass Method' Errors after importing a project into Eclipse

... preferences and set the Java compiler level to 1.6 and also make sure you select JRE 1.6 to execute your program from Eclipse. share | improve this answer | follow ...
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How to atomically delete keys matching a pattern using Redis

...helped me out. Another variant if your redis keys contain quotes or other characters that mess up xargs: redis-cli KEYS "prefix:*" | xargs --delim='\n' redis-cli DEL – overthink Sep 16 '11 at 13:31 ...