大约有 47,000 项符合查询结果(耗时:0.0401秒) [XML]

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How can I clear the SQL Server query cache?

...et DBID from one database name first DECLARE @intDBID INT; SET @intDBID = (SELECT [dbid] FROM master.dbo.sysdatabases WHERE name = N'AdventureWorks2014'); DBCC FLUSHPROCINDB (@intDBID); 7. Clear plan cache for the current database USE AdventureWorks2014; GO -- New...
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How to access a mobile's camera from a web app?

...re="capture" (Boolean) . The attribute is used to force capture instead of selecting from the library. See the spec and Correct Syntax for HTML Media Capture – Octavian Naicu Nov 9 '16 at 15:56 ...
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“INSERT IGNORE” vs “INSERT … ON DUPLICATE KEY UPDATE”

...int, unique key (u)); mysql> insert into foo (u) values (10); mysql> select * from foo; +----+------+ | id | u | +----+------+ | 1 | 10 | +----+------+ mysql> show create table foo\G CREATE TABLE `foo` ( `id` bigint(20) unsigned NOT NULL AUTO_INCREMENT, `u` int(11) DEFAULT NULL, ...
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How do I auto-submit an upload form when a file is selected?

...le upload form. How do I make it submit automatically when a file has been selected? I don't want the user to have to click the Submit button. ...
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What is the difference between synchronous and asynchronous programming (in node.js)

...xamples: // Example 1 - Synchronous (blocks) var result = database.query("SELECT * FROM hugetable"); console.log("Query finished"); console.log("Next line"); // Example 2 - Asynchronous (doesn't block) database.query("SELECT * FROM hugetable", function(result) { console.log("Query finished")...
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how to display full stored procedure code?

... SELECT prosrc FROM pg_proc WHERE proname = 'function_name'; This tells the function handler how to invoke the function. It might be the actual source code of the function for interpreted languages, a link symbol, a file nam...
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How to Store Historical Data

...erform an insert statement into FOO_Hist similar to: insert into FOO_HIST select * from FOO where id = @id . 13 Answers ...
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Is there an SQLite equivalent to MySQL's DESCRIBE [table]?

...aster table: sqlite> CREATE TABLE foo (bar INT, quux TEXT); sqlite> SELECT * FROM sqlite_master; table|foo|foo|2|CREATE TABLE foo (bar INT, quux TEXT) sqlite> SELECT sql FROM sqlite_master WHERE name = 'foo'; CREATE TABLE foo (bar INT, quux TEXT) ...
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Xcode : failed to get the task for process

...two Provisioning Profiles for the same name, Xcode5 will only allow you to select one of them. To work around this, you have to use iPhone Configuration Utility to find the Profile you want, find the 30-digit "Profile Identifier" and copy/paste it into the "Other" value of the Provisioning Profile d...
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How to specify a multi-line shell variable?

... Use read with a heredoc as shown below: read -d '' sql << EOF select c1, c2 from foo where c1='something' EOF echo "$sql" share | improve this answer | follow ...