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近期 Chrome 下 Discuz 兼容问题修复记录:AJAX 提交失效与移动链接误跳转 ...
...取结果。
这套老机制在新版 Chrome 下兼容性较差,主要包括:
1. 旧代码依赖过时的返回读取方式,拿不到正确内容
2. 隐藏 iframe 的空白 load 容易被误判为提交完成
3. 原逻辑使用了 iframe.loading 作为自定义状态,和现代浏...
How to avoid the “divide by zero” error in SQL?
...t instantly get why this works, NULLIF(d,0) will return NULL if d is 0. In SQL, dividing by NULL returns NULL. The Coalesce replaces the resulting NULL by 0.
– GuiSim
Apr 16 '14 at 15:59
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SQL Server IN vs. EXISTS Performance
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That's a good point. The IN statement requires SQL Server to generate a complete result set, and then create a big IF statement I think.
– Randy Minder
Jan 14 '10 at 16:04
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Disable Enable Trigger SQL server for a table
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what versions of SqlServer is this good for? not working for me, while DISABLE TRIGGER [dbo].[tr_name] on [schema].[table_name] worked
– Maslow
Jul 14 '16 at 21:11
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Which is faster/best? SELECT * or SELECT column1, colum2, column3, etc
I've heard that SELECT * is generally bad practice to use when writing SQL commands because it is more efficient to SELECT columns you specifically need.
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What is the syntax for an inner join in LINQ to SQL?
I'm writing a LINQ to SQL statement, and I'm after the standard syntax for a normal inner join with an ON clause in C#.
1...
How can I change the language (to english) in Oracle SQL Developer?
I am running a non-english Windows 7 system, and apparently Oracle SQL Developer (version 3.0.04.34, 64-bit) tries to auto-guess my preferred language based on the OS. Is there any way to change the language to english?
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How do you list the primary key of a SQL Server table?
Simple question, how do you list the primary key of a table with T-SQL? I know how to get indexes on a table, but can't remember how to get the PK.
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SQL query to select dates between two dates
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SQL Server defaults a date without a time to 00:00:00. So won't this query return anything from 2011/02/25 and 2011/02/26 at midnight?
– Matt
Aug 21 '12 at 14:27
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What is the benefit of using “SET XACT_ABORT ON” in a stored procedure?
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SET XACT_ABORT ON instructs SQL Server to rollback the entire transaction and abort the batch when a run-time error occurs. It covers you in cases like a command timeout occurring on the client application rather than within SQL Server itself (which isn...
