大约有 40,000 项符合查询结果（耗时：0.0335秒） [XML]
Nested Models in Backbone.js, how to approach
...
Of course, if you want to go as far as saving the nested model in its own table. This wouldn't be sufficient. But in the case of reading and saving the object as a whole, this solution should suffice.
share
|
...
Using varchar(MAX) vs TEXT on SQL Server
...hould use a Full Text Index.
LIKE is simpler to implement and is often suitable for small amounts of data, but it has extremely poor performance with large data due to its inability to use an index.
share
|
...
How to get all Errors from ASP.Net MVC modelState?
...
During debugging I find it useful to put a table at the bottom of each of my pages to show all ModelState errors.
<table class="model-state">
@foreach (var item in ViewContext.ViewData.ModelState)
{
if (item.Value.Errors.Any())
{
...
What's the difference between :: (double colon) and -> (arrow) in PHP?
...ate and delete methods, since you can set the return value to the inserted table id and then use the constructor to instantiate the object by the row id.
share
|
improve this answer
|
...
What is the difference between char, nchar, varchar, and nvarchar in SQL Server?
...rt of this actually depends on collation as illustrated below.
DECLARE @T TABLE
(
C1 VARCHAR(20) COLLATE Chinese_Traditional_Stroke_Order_100_CS_AS_KS_WS,
C2 NVARCHAR(20)COLLATE Chinese_Traditional_Stroke_Order_100_CS_AS_KS_WS
)
INSERT INTO @T
VALUES (N'中华人民共和国',N'中华人民...
Why can't a text column have a default value in MySQL?
If you try to create a TEXT column on a table, and give it a default value in MySQL, you get an error (on Windows at least). I cannot see any reason why a text column should not have a default value. No explanation is given by the MySQL documentation. It seems illogical to me (and somewhat frustrati...
Random row from Linq to Sql
...dom()
select row).FirstOrDefault();
Note that this is only suitable for small-to-mid-size tables; for huge tables, it will have a performance impact at the server, and it will be more efficient to find the number of rows (Count), then pick one at random (Skip/First).
for count approa...
Is it possible to refresh a single UITableViewCell in a UITableView?
I have a custom UITableView using UITableViewCell s.
Each UITableViewCell has 2 buttons. Clicking these buttons will change an image in a UIImageView within the cell.
...
Zip lists in Python
...
len(result[0]) wont work. 'zip' object is not subscriptable
– GilbertS
Feb 23 at 16:23
3
...
Generate full SQL script from EF 5 Code First Migrations
... Does this create an exact copy of the database? Including the table contents?
– Multitut
Mar 20 '15 at 14:36
2
...