大约有 40,000 项符合查询结果(耗时:0.0255秒) [XML]
Performing Inserts and Updates with Dapper
...time you can do the following
val = "my value";
cnn.Execute("insert into Table(val) values (@val)", new {val});
cnn.Execute("update Table set val = @val where Id = @id", new {val, id = 1});
etcetera
See also my blog post: That annoying INSERT problem
Update
As pointed out in the comments, t...
How do you get the length of a list in the JSF expression language?
...java.sun.com/jsp/jstl/functions" prefix="fn"%>
<h:outputText value="Table Size = #{fn:length(SystemBean.list)}"/>
On screen it displays the Table size
Example: Table Size = 5
share
|
im...
Cookie overflow in rails application?
...xample.
Here is the steps
Generate a migration that creates the session table
rake db:sessions:create
Run the migration
rake db:migrate
Modify config/initializers/session_store.rb from
(App)::Application.config.session_store :cookie_store, :key => 'xxx'
to
(App)::Application.config.ses...
Django - How to rename a model field using South?
...foo', 'full_name', 'name')
The first argument of db.rename_column is the table name, so it's important to remember how Django creates table names:
Django automatically derives the name of the database table from the name of your model class and the app that contains it. A model's database tabl...
Error: Tablespace for table xxx exists. Please DISCARD the tablespace before IMPORT
...ittle late here but generally I've seen this problem occur when you get a 'tablespace full' error when running in a 'innodb_file_per_table' mode. Without going into too much detail (more here), the database server's tablespace is defined by the innodb_data_file_path setting and by default is rather...
What does O(log n) mean exactly?
...gorithm performance. Some grown faster as the input n grows. The following table demonstrates said growth numerically. In the table below think of log(n) as the ceiling of log_2.
Simple Code Examples Of Various Big O Categories:
O(1) - Constant Time Examples:
Algorithm 1:
Algorithm 1 prints...
Imitate Facebook hide/show expanding/contracting Navigation Bar
... @Thuy great work man! So I have this working on perfectly on a table view controller except one thing... I have pull to refresh implemented at the top. It gets weird when trying to pull down and refresh. Might there be a workaround for this?
– aherrick
...
Filter by property
...(modelType, specify):
clause = "SELECT * from %s" % modelType._meta.db_table
if len(specify) > 0:
clause += " WHERE "
for field, eqvalue in specify.items():
clause += "%s = '%s' AND " % (field, eqvalue)
clause = clause [:-5] # remove last AND
pri...
CSS text-overflow in a table cell?
I want to use CSS text-overflow in a table cell, such that if the text is too long to fit on one line, it will clip with an ellipsis instead of wrapping to multiple lines. Is this possible?
...
Manually map column names with class properties
...
@Sam Saffron is there any way I can specify the table alias. I have a class named Country but in the db the table has very convoluted name due to archic naming conventions.
– TheVillageIdiot
Aug 7 '12 at 14:55
...
