大约有 40,000 项符合查询结果(耗时:0.0366秒) [XML]

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Set selected index of an Android RadioGroup

Is there a way to set the selected index of a RadioGroup in android, other than looping through the child radiobuttons and selecting checking the radio button at the selected index? ...
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The server principal is not able to access the database under the current security context in SQL Se

... DECLARE @UserName nvarchar(255) DECLARE orphanuser_cur cursor for SELECT UserName = su.name FROM sysusers su JOIN sys.server_principals sp ON sp.name = su.name WHERE issqluser = 1 AND (su.sid IS NOT NULL AND su.sid <> 0x0) AND suser_sname(su....
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How to select lines between two marker patterns which may occur multiple times with awk/sed

Using awk or sed how can I select lines which are occurring between two different marker patterns? There may be multiple sections marked with these patterns. ...
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Conversion failed when converting date and/or time from character string while inserting datetime

...s the recommend date/time data types for SQL Server 2008 or newer anyway. SELECT CAST('02-21-2012 6:10:00 PM' AS DATETIME2), -- works just fine CAST('01-01-2012 12:00:00 AM' AS DATETIME2) -- works just fine Don't ask me why this whole topic is so tricky and somewhat confusing - that...
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Convert text into number in MySQL query

... This should work: SELECT field,CONVERT(SUBSTRING_INDEX(field,'-',-1),UNSIGNED INTEGER) AS num FROM table ORDER BY num; share | improve this ...
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MySQL string replace

... Yes, MySQL has a REPLACE() function: mysql> SELECT REPLACE('www.mysql.com', 'w', 'Ww'); -> 'WwWwWw.mysql.com' http://dev.mysql.com/doc/refman/5.0/en/string-functions.html#function_replace Note that it's easier if you make that an alias when using SELECT SEL...
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Is it possible to GROUP BY multiple columns using MySQL?

Is it possible to GROUP BY more than one column in a MySQL SELECT query? For example: 7 Answers ...
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Is there a CSS parent selector?

How do I select the <li> element that is a direct parent of the anchor element? 33 Answers ...
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Possible to perform cross-database queries with PostgreSQL?

... executes a query in a remote database dblink executes a query (usually a SELECT, but it can be any SQL statement that returns rows) in a remote database. When two text arguments are given, the first one is first looked up as a persistent connection's name; if found, the command is executed on that...
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How to UPSERT (MERGE, INSERT … ON DUPLICATE UPDATE) in PostgreSQL?

...and re-try where necessary. Some attempted solutions also fail to consider SELECT races. If you try the obvious and simple: -- THIS IS WRONG. DO NOT COPY IT. It's an EXAMPLE. BEGIN; UPDATE testtable SET somedata = 'blah' WHERE id = 2; -- Remember, this is WRONG. Do NOT COPY IT. INSERT INTO testt...