大约有 6,000 项符合查询结果（耗时：0.0400秒） [XML]
How to design a database for User Defined Fields?
...t this solution here: http://backchannel.org/blog/friendfeed-schemaless-mysql
Or you can use a document-oriented database, where it's expected that you have custom fields per document. I'd choose Solr.
share
|
...
What is the proper REST response code for a valid request but an empty data?
... for "no result found" is like throwing a DatabaseConnectionException if a SQL query returned no results. It can get the job done, but there are lots of possible technical causes that throw the same exception which then would be mistaken for a valid result.
...
Entity Framework and Connection Pooling
...pooling in connection string if you don't want to use it. (read more about SQL Server Connection Pooling (ADO.NET))
Never ever use global context. ObjectContext internally implements several patterns including Identity Map and Unit of Work. Impact of using global context is different per application...
Why must jUnit's fixtureSetup be static?
...es.getUsername;
import static java.lang.String.valueOf;
import static java.sql.Connection.TRANSACTION_READ_UNCOMMITTED;
public final class JPAConnectionExample extends ExternalResource {
private static final Logger LOG = Logger.getLogger(JPAConnectionExample.class);
@NotNull
public static J...
When should I use RequestFactory vs GWT-RPC?
...cation should contain your database application layer (hibernate, cayenne, sql etc..) This allows you to fully divorce the database object models from the actual client providing a much more extensible and robust way to develop and unit test your application. Granted it requires a tad bit of initial...
How to read a .xlsx file using the pandas Library in iPython?
...xlsx file using the Pandas Library of python and port the data to a postgreSQL table.
6 Answers
...
Set Additional Data to highcharts series
...
I am using AJAX to get my data from SQL Server, then I prepare a js array that is used as the data in my chart.
JavaScript code once the AJAX is successfull:
...,
success: function (data) {
var fseries = [];
var series = [];
...
How do I discover memory usage of my application in Android?
... Binders: 158
Death Recipients: 49
OpenSSL Sockets: 0
SQL
heap: 205 dbFiles: 0
numPagers: 0 inactivePageKB: 0
activePageKB: 0
The top section is the main one, where size is the total size in address space of a ...
Is it better to call ToList() or ToArray() in LINQ queries?
...ing a group defined through a group join in your projection causes Linq to SQL to add another sub-query to retrieve the count for that group. I'm assuming that this means in these cases the size of the collection will be known before the items are retrieved and thus an exact sized array could be cre...
How to move a model between two Django apps (Django 1.7)
...o-many relationship is usually just a table with two foreign keys, from an SQL point of view you can apply the trick of this answer. But in order to achieve this only via Django, one approach I can think of would be along the lines of @ozan answer, except the first step would be to duplicate the tab...