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Error: Tablespace for table xxx exists. Please DISCARD the tablespace before IMPORT
...`.`innodb_table`' exists. Please DISCARD the tablespace before IMPORT
in order to fix this, what i did was first
create table innodb_table2(`id` int(10) unsigned NOT NULL);
Query OK, 0 rows affected (0.07 sec)
then in the /var/lib/mysql/database_name directory i did the following as root ackn...
Why do we need entity objects? [closed]
... application. I want my application to be thinking in terms of Customers, Orders and Items, not a technology like DataSets, DataTables and DataRows...cuz who knows how long those will be around.
I agree that there is always a certain amount of coupling, but I prefer that coupling to reach upward...
How to version REST URIs
...
@Gili In order to satisfy the requirement for a REST api to be self-descriptive it is necessary that the content-type header provide the complete semantic description of the message. In other words, your media type is your data contr...
Advantages and disadvantages of GUID / UUID database keys
...a clash.
Disadvantages:
Larger space use, but space is cheap(er)
Can't order by ID to get the insert order.
Can look ugly in a URL, but really, WTF are you doing putting a REAL DB key in a URL!? (This point disputed in comments below)
Harder to do manual debugging, but not that hard.
Personall...
Is it better to specify source files with GLOB or each file individually in CMake?
...ant are added. Globbing may pick up stray
files that you do not want.
In order to work around the first issue, you can simply "touch" the CMakeLists.txt that does the glob, either by using the touch command or by writing the file with no changes. This will force CMake to re-run and pick up the new...
How do I iterate through each element in an n-dimensional matrix in MATLAB?
... 4 9 2
A(2,3)
ans =
7
A(8)
ans =
7
We can see the order the elements are stored in memory by unrolling the array into a vector.
A(:)
ans =
8
3
4
1
5
9
6
7
2
As you can see, the 8th element is the number 7. In fact, the function...
How to use transactions with dapper.net?
...
@CodeNaked, first, you've got the order wrong there. The catch block would be hit first if there's an exception, then the end of scope for using. Second, look at this answer and the referenced MSDN doc:stackoverflow.com/a/5306896/190476 calling dispose a seco...
How to make Entity Framework Data Context Readonly
...nly querying capabilities of DbContext. Let's say you have an entity named Order, then you would use ReadOnlyDataContext instance in a way like below.
readOnlyDataContext.Set<Order>().Where(q=> q.Status==OrderStatus.Delivered).ToArray();
...
Workflow for statistical analysis and report writing
... I have started numbering the scripts, so it's completely obvious in which order they should be run. (If I'm feeling really fancy I'll sometimes make it so that the exploration script will call the cleaning script which in turn calls the download script, each doing the minimal work necessary - usua...
Secure hash and salt for PHP passwords
...nksys, Dlink etc). A very good explanation of how
this works is here. In order to retrieve password from hash, you will
need to know the password as well as salt (network name). Church of
Wifi has already pre-computed hash tables which has top 1000 SSIDs and
about 1 million passwords. The si...