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VC菜单命令详解(文件打开、保存与关闭) - C/C++ - 清泛网 - 专注C/C++及内核技术
...构造the main frame对象和the main frame window，但不显示它，它包括IDR_MAINFRAME、the toolbar、the status bar；
3、构造view对象和view窗口，但不显示它；
4、建立the document、main frame、view对象之间的关系，这里要借助AddDocTemplate建立的类关系...
Is there an SQLite equivalent to MySQL's DESCRIBE [table]?
I'm just getting started learning SQLite . It would be nice to be able to see the details for a table, like MySQL's DESCRIBE [table] . PRAGMA table_info [table] isn't good enough, as it only has basic information (for example, it doesn't show if a column is a field of some sort or not). Does SQL...
How do I find a default constraint using INFORMATION_SCHEMA?
...talog views (sys.*) instead of system table views, which are deprecated in SQL Server 2005 and later.
Below is pretty much the same as @user186476's answer. It returns the name of the default value constraint for a given column. (For non-SQL Server users, you need the name of the default in order t...
How to set a default value for an existing column
This isn't working in SQL Server 2008:
13 Answers
13
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SQL multiple column ordering
I am trying to sort by multiple columns in SQL, and in different directions. column1 would be sorted descending, and column2 ascending.
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Do htmlspecialchars and mysql_real_escape_string keep my PHP code safe from injection?
...database queries, always try and use prepared parameterised queries. The mysqli and PDO libraries support this. This is infinitely safer than using escaping functions such as mysql_real_escape_string.
Yes, mysql_real_escape_string is effectively just a string escaping function. It is not a magic bu...
How to detect if a stored procedure already exists
...f you drop it you know you have to re-add the permissions. If you ran this sql you would not know whether the sproc had the correct permissions or not as you wouldn't know if you had created it or altered it.
– Liazy
Jan 25 '13 at 12:03
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Multiple INSERT statements vs. single INSERT with multiple VALUES
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Addition: SQL Server 2012 shows some improved performance in this area but doesn't seem to tackle the specific issues noted below. This
should apparently be fixed in the next major version after
SQL Server 2012!
Your plan shows t...
Profiling Django
...I didn't realize how much slower the Debug Toolbar made things process. My sql queries were small (30ms) but cpu time was very high (800ms). Another page i was tuning had sql times of 300ms, and cpu time of 8000ms - so i kept trying to find the source of the problem. Turning Django Toolbar off sped ...
What's the longest possible worldwide phone number I should consider in SQL varchar(length) for phon
What's the longest possible worldwide phone number I should consider in SQL varchar(length) for phone.
5 Answers
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