大约有 9,000 项符合查询结果(耗时:0.0349秒) [XML]
Handling List-types with Esqueleto
...asking for.
For your case I would insistently advise you to use a classic SQL queries. You can run n+1 queries, but do that only if it is rare and not often usable function, that for example prepares cached data (based on your variables names I suppose that it may not be heavy used and it worth a t...
MFC的多国语言界面的实现 - C/C++ - 清泛网 - 专注C/C++及内核技术
...MFC的资源文件就提供了对多国不同语言的支持功能,如果使用MFC开发,直接用资源文件自带的多国语言支持,可以省去不少的麻烦。
下面就介绍给MFC程序添加中英文的支持,开发环境为VS2010。
1. 新建工程
新建了一个对话框...
SET NOCOUNT ON usage
...een using SET NOCOUNT ON forever, but marc_s pointed out the limitation of SQLDataAdapter in the other question.
– gbn
Oct 10 '09 at 12:26
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COUNT(*) vs. COUNT(1) vs. COUNT(pk): which is better? [duplicate]
...id
GROUP BY boss.id
But they cannot do that (COUNT(tableNameHere)) since SQL standard permits naming a field with the same name as its table name:
CREATE TABLE fruit -- ORM-friendly name
(
fruit_id int NOT NULL,
fruit varchar(50), /* same name as table name,
and let's say, someon...
SQL UPDATE SET one column to be equal to a value in a related table referenced by a different column
... Having a problem with a similar situation in PhpMyAdmin over MySQL. In my case, the source and destination columns are in the same table, but record selection is based on the other table. The "SELECT" version of the query works, but the UPDTATE statement throws a syntax error at "FROM"...
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...
