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What is the difference between Session.Abandon() and Session.Clear()
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When you Abandon() a Session, you (or rather the user) will get a new SessionId (on the next request).
When you Clear() a Session, all stored values are removed, but the SessionId stays intact.
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When to use “ON UPDATE CASCADE”
...be kept with the very original ID, and for any reason you have to create a new one, in case you can't update the data on the old one (for example due to permissions, or in case you are searching for fastness in a case that is so ephemeral that doesn't deserve the absolute and utter respect for the t...
How can I clone an SQL Server database on the same server in SQL Server 2008 Express?
...base to .BAK file (db -> Task -> Backup).
Create empty database with new name (clone). Note comments below as this is optional.
Click to clone database and open restore dialog (see image)
Select Device and add the backup file from step 3.
Change destination to test database
Change location...
PHP: How to generate a random, unique, alphanumeric string for use in a secret link?
...ck if the token already exists in the DB after creating it and just pick a new one if that is the case. However, the time you spend writing that snippet of code is likely wasted as it will most likely never be run.
– Andrew
May 26 '14 at 21:10
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Python json.loads shows ValueError: Extra data
I am getting some data from a JSON file "new.json", and I want to filter some data and store it into a new JSON file. Here is my code:
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Android - get children inside a View?
...!(v instanceof ViewGroup)) {
ArrayList<View> viewArrayList = new ArrayList<View>();
viewArrayList.add(v);
return viewArrayList;
}
ArrayList<View> result = new ArrayList<View>();
ViewGroup vg = (ViewGroup) v;
for (int i = 0; i < vg....
ASP.NET MVC 3: Override “name” attribute with TextBoxFor
... simpler way. Instead of name, use Name:
@Html.TextBoxFor(x => x.Data, new { Name = Model.Key + "_Data", id = Model.Key + "_Data" })
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How do I use cascade delete with SQL Server?
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You will need to,
Drop the existing foreign key constraint,
Add a new one with the ON DELETE CASCADE setting enabled.
Something like:
ALTER TABLE dbo.T2
DROP CONSTRAINT FK_T1_T2 -- or whatever it's called
ALTER TABLE dbo.T2
ADD CONSTRAINT FK_T1_T2_Cascade
FOREIGN KEY (Employe...
Jdbctemplate query for string: EmptyResultDataAccessException: Incorrect result size: expected 1, ac
... method instead.
List<String> strLst = getJdbcTemplate().query(sql,new RowMapper {
public Object mapRow(ResultSet rs, int rowNum) throws SQLException {
return rs.getString(1);
}
});
if ( strLst.isEmpty() ){
return null;
}else if ( strLst.size() == 1 ) { // list contains exac...
Convert string to number and add one
... the value I get from the id into a number and add one to it then pass the new value into the dosomething() function to use. When I tried this and the value is one I get back 11 not 2.
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