大约有 42,000 项符合查询结果(耗时:0.0190秒) [XML]

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Xcode 4: create IPA file instead of .xcarchive

...-> Archive. After the Archive operation completes, go to the Organizer, select your archive, select Share and in the "Select the content and options for sharing:" pane set Contents to "iOS App Store Package (.ipa) and Identity to iPhone Distribution (which should match your ad hoc/app store provi...
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Find an item in List by LINQ?

... If you want the index of the element, this will do it: int index = list.Select((item, i) => new { Item = item, Index = i }) .First(x => x.Item == search).Index; // or var tagged = list.Select((item, i) => new { Item = item, Index = i }); int index = (from pair in tagged ...
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Checking oracle sid and database name

... I presume SELECT user FROM dual; should give you the current user and SELECT sys_context('userenv','instance_name') FROM dual; the name of the instance I believe you can get SID as SELECT sys_context('USERENV', 'SID') FROM DUAL; ...
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Get list of databases from SQL Server

... Execute: SELECT name FROM master.sys.databases This the preferred approach now, rather than dbo.sysdatabases, which has been deprecated for some time. Execute this query: SELECT name FROM master.dbo.sysdatabases or if you pref...
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mysql -> insert into tbl (select from another table) and some default values [duplicate]

As the title says, I am trying to insert into one table selecting values from another table and some default values. 5 Ans...
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1052: Column 'id' in field list is ambiguous

...and tbl_section which has both the id field in them. How do I go about selecting the id field, because I always get this error: ...
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How do you use script variables in psql?

...t myvariable value ... and can then be substituted, for example, as ... SELECT * FROM :myvariable.table1; ... or ... SELECT * FROM table1 WHERE :myvariable IS NULL; edit: As of psql 9.1, variables can be expanded in quotes as in: \set myvariable value SELECT * FROM table1 WHERE column1 ...
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How to get the top 10 values in postgresql?

... For this you can use limit select * from scores order by score desc limit 10 If performance is important (when is it not ;-) look for an index on score. Starting with version 8.4, you can also use the standard (SQL:2008) fetch first select * from...
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Combining “LIKE” and “IN” for SQL Server [duplicate]

... Effectively, the IN statement creates a series of OR statements... so SELECT * FROM table WHERE column IN (1, 2, 3) Is effectively SELECT * FROM table WHERE column = 1 OR column = 2 OR column = 3 And sadly, that is the route you'll have to take with your LIKE statements SELECT * FROM tabl...
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How do I put an 'if clause' in an SQL string?

... WHERE purchaseOrder_ID = '@purchaseOrder_ID' and not exists (SELECT * FROM itemsOrdered WHERE purchaseOrder_ID = '@purchaseOrdered_ID' AND status = 'PENDING' ) However, I might guess that you are looping at a higher level. To set all such v...