大约有 40,000 项符合查询结果(耗时:0.0294秒) [XML]

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Select multiple records based on list of Id's with linq

I have a list containing Id's of my UserProfile table. How can i select all UserProfiles based on the list of Id's i got in a var using LINQ ? ...
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How to get the Full file path from URI

...but if i do it like the MediaStore Solution, it won't work if the app user selects eg Astro as browser, instead of Music Player. How do I solve this? ...
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How to check if a column exists in a SQL Server table?

... SQL Server 2005 onwards: IF EXISTS(SELECT 1 FROM sys.columns WHERE Name = N'columnName' AND Object_ID = Object_ID(N'schemaName.tableName')) BEGIN -- Column Exists END Martin Smith's version is shorter: IF COL_LENGTH('schemaName.tabl...
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How to generate a simple popup using jQuery

... First the CSS - tweak this however you like: a.selected { background-color:#1F75CC; color:white; z-index:100; } .messagepop { background-color:#FFFFFF; border:1px solid #999999; cursor:default; display:none; margin-top: 15px; position:absolute; text-a...
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SQL Server: Difference between PARTITION BY and GROUP BY

...y're used in different places. group by modifies the entire query, like: select customerId, count(*) as orderCount from Orders group by customerId But partition by just works on a window function, like row_number: select row_number() over (partition by customerId order by orderId) as OrderN...
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Select count(*) from multiple tables

How can I select count(*) from two different tables (call them tab1 and tab2 ) having as result: 18 Answers ...
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“Insert if not exists” statement in SQLite

... and text you should be able to do like this: INSERT INTO memos(id,text) SELECT 5, 'text to insert' WHERE NOT EXISTS(SELECT 1 FROM memos WHERE id = 5 AND text = 'text to insert'); If a record already contains a row where text is equal to 'text to insert' and id is equal to 5, then the insert op...
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SQL selecting rows by most recent date

...eturns a result set with ChargeId, ChargeType, and MostRecentServiceMonth SELECT CHARGEID, CHARGETYPE, MAX(SERVICEMONTH) AS "MostRecentServiceMonth" FROM INVOICE GROUP BY CHARGEID, CHARGETYPE share | ...
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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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ORA-00054: resource busy and acquire with NOWAIT specified or timeout expired

...table is already locked by some query. For example, you may have executed "select for update" and have not yet committed/rollbacked and fired another select query. Do a commit/rollback before executing your query. share ...