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What is the difference between ExecuteScalar, ExecuteReader and ExecuteNonQuery?
...the first row. An example might be SELECT @@IDENTITY AS 'Identity'.
ExecuteReader is used for any result set with multiple rows/columns (e.g., SELECT col1, col2 from sometable).
ExecuteNonQuery is typically used for SQL statements without results (e.g., UPDATE, INSERT, etc.).
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What is the difference between properties and attributes in HTML?
...roperty is a reflected property for the id attribute: Getting the property reads the attribute value, and setting the property writes the attribute value. id is a pure reflected property, it doesn't modify or limit the value.
The type property is a reflected property for the type attribute: Getting ...
How to avoid 'cannot read property of undefined' errors?
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Best, we can use _.get() with default for easy read : _.get(object, 'a.b.c', 'default');
– Ifnot
Jun 18 '18 at 13:53
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What is a lambda (function)?
...e way as anonymous delegates, but it can also be broken down and its logic read.
For instance (in C#3):
LinqToSqlContext.Where(
row => row.FieldName > 15 );
LinqToSql can read that function (x > 15) and convert it to the actual SQL to execute using expression trees.
The statement ...
Exception 'open failed: EACCES (Permission denied)' on Android
...evel 19, this permission is not enforced and all apps still have access to read from external storage.
– AndroidGeek
Jul 1 '15 at 8:15
1
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MySQL vs PostgreSQL for Web Applications [closed]
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A note to future readers: The text below was last edited in August 2008. That's nearly 11 years ago as of this edit. Software can change rapidly from version to version, so before you go choosing a DBMS based on the advice below, do some rese...
What's the difference between the 'ref' and 'out' keywords?
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The ref modifier means that:
The value is already set and
The method can read and modify it.
The out modifier means that:
The Value isn't set and can't be read by the method until it is set.
The method must set it before returning. ...
When to use the JavaScript MIME type application/javascript instead of text/javascript?
... supposed to be application is not anything to do with whether the type is readable or executable. It's because there are custom charset-determination mechanisms laid down by the language/type itself, rather than just the generic charset parameter. A subtype of text should be capable of being transc...
Why should I use Hamcrest-Matcher and assertThat() instead of traditional assertXXX()-Methods
...alue", "anotherValue"));
One can discuss which one of those is easier to read, but once the assert fails, you'll get a good error message from assertThat, but only a very minimal amount of information from assertTrue.
assertThat will tell you what the assertion was and what you got instead. asser...
Real world example about how to use property feature in python?
I am interested in how to use @property in Python. I've read the python docs and the example there, in my opinion, is just a toy code:
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